Journal articles on the topic 'Implant'
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Zhang, Salina, Pelin Batur, Charles Martin, and Paul Rochon. "Contraceptive Implant Migration and Removal by Interventional Radiology." Seminars in Interventional Radiology 35, no. 01 (March 2018): 023–28. http://dx.doi.org/10.1055/s-0038-1636517.
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AbstractAs the reversible contraceptive arm implants grow more popular, there is an increasing need to recognize the complications resulting from implant migration and removal. This review summarizes the findings of imaging and removal methods. When an implant is lost, the axillary region should be investigated first. If the implant still cannot be found, visualization though different methods have been employed for non-radiopaque implants. Real-time fluoroscopic-guided localization and removal can be accomplished for radiopaque Nexplanon. Once the implant has been located, standard removal method and other modified techniques can be used to safely remove the implant depending on the implant's location.
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ÇİÇEKDAĞI İLHAN, Ceylan, Mehmet DİKMEN, and Emir YÜZBAŞIOĞLU. "Accuracy And Efficiency Of Digital Implant Planning And Guided Implant Surgery." Journal of Experimental and Clinical Medicine 38, SI-2 (May 19, 2021): 148–56. http://dx.doi.org/10.52142/omujecm.38.si.dent.12.
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Advances in digital technologies offer 3D integrated solutions for digital implnat planning.Virtual implant placement and guided implant surgery are claimed to provide more predictable results even in complicated implant treatments.Technology is now capable to properly transfer the virtually planned optimal positon of implants to reality during surgery.However clinicians have to be aware of the potential deviation factors and risks of the different types of guided surgery systems to reduce the risk of complications.The aim of this review is to evaluate the efficiency and accuracy of different computer-assisted dental implant placement techniques and to discuss potential error sources for each technique.
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Bagic, Iva, Hrvoje Pezo, Robert Celic, and Zarko Udiljak. "Punimet protetikore mobile të retinuara me implante me metoden e printimit tredimensional te pacientët me padhëmbësi totale." Revista e Stomatologëve të Kosovës 2, no. 1 (July 5, 2023): 55–64. http://dx.doi.org/10.59138/zhddkfztzdqli.
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Patients with total edentulism can be treated with fixed or mo- bile prosthetic implant rehabilitation with dental implants as part of implanto-prosthetic therapy. Of the three dental implant loading options/protocols (conventional, early loading, and im- mediate loading), removable prosthetic works are most often conventionally loaded and then they represent standard and reliable forms (with a high success rate) of implanto-prosthetic therapy.
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Irudhayam S., Jackson, and V. Hariram. "A Brief Review on PEEK as biomaterial, Importance of Implant Design, 3D Printing and FEA in Dental Implant." E3S Web of Conferences 491 (2024): 01017. http://dx.doi.org/10.1051/e3sconf/202449101017.
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The present research study seeks to provide a thorough literature evaluation on implant-based materials, implant design and application of FEA approach (Finite Element Analysis). PEEK biomaterial is the primary subject of this article. Implant design and the significance of PEEK material in future clinical applications are significant subtopics in this study. Due to its excellent physical qualities, titanium plays an essential part in the implant business. PEEK and zirconia materials appear to have promise for the future. Biomedical uses of PEEK and its composite materials in a number of different fields, including dentistry, hip implant, anterior plate fixation, crainoplasticity, knee implants, spine implants, and so forth. The implant's impact and success are greatly impacted by the prudent selection of implant biomaterial. Before the PEEK implant can replace titanium and zirconium, further research and well-controlled clinical studies are required. In this study, a number of biomaterials that were used in the implant industry will be finalized.
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Horwitz, Jacob, Eli E. Machtei, Shai Frankental, Eran Gabay, Yaniv Mayer, Livia Joseph, and Omer Cohen. "Clinical and Patient-Related Outcomes of a Tapered Implant System With Switched Platform Conical Abutments: A Private Practice Field Trial." Journal of Oral Implantology 44, no. 5 (October 1, 2018): 326–29. http://dx.doi.org/10.1563/aaid-joi-d-18-00005.
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The aim of this prospective cohort observational field trial was to examine 1-year survival and success rates of a recently introduced tapered implant system with switched platform conical abutments and to evaluate patient related outcomes of therapy. Partially edentulous patients aged between 18 and 75 years, with available bone height for dental implants ≥10 mm desiring to restore the missing tooth/teeth with implant supported restoration, were recruited by 7 periodontists in their respective private practices. Dental implants were installed according to standard implant therapy protocol. Three to 6 months postoperatively, after evaluating interim implant success, implants were restored by the referring dentists. Patient, Ramfjord teeth, and implant data, including baseline and 1-year postoperative, were collected. A total of 60 patients were recruited and received 117 implants. Complete 1-year clinical and radiographic data were available for 83 and 65 implants, respectively. Two implants failed during the first year, resulting in a 1-year survival rate of 98.3%. Mean implant probing pocket depth was 2.29 ± 0.84 mm. Mean radiographic bone distance from implant's shoulder at the mesial and distal sites at 1 year was 0.66 ± 0.5 and 0.79 ± 0.64mm, respectively, resulting in a success rate of 95.4%. Patient subjective evaluation of therapy exhibited a median pain experience of 1 and median esthetics, function, and general satisfaction evaluation of 10 on a scale of 1 to 10. The tapered conical connection dental implant system, used in private dental practices, shows good 1-year survival and success rates that are similar to other implant systems on the market.
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Lisniawan, Perina Enri, Putu Utami Dewi, and Ni Nyoman Margiani. "Peranan Magnetic Resonance Imaging (MRI) payudara pada kasus benign late peri- implant effusion pasca breast augmentation: laporan kasus." Intisari Sains Medis 14, no. 2 (August 6, 2023): 707–11. http://dx.doi.org/10.15562/ism.v14i2.1681.
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Background: Breast augmentation is a surgical procedure performed to increase breast size by implanting implants or through fat transfer. MRI is the gold standard for evaluating the integrity of breast implants, with a sensitivity of 80–90% and a specificity of 80–90% for detecting implant rupture. In this case report, we will discuss the role of breast MRI in cases of benign late peri-implant effusion after breast augmentation. Case Presentation: A 49-year-old female patient has complained of a lump in her left breast since 2017. The patient had surgery to insert right and left breast implants in 2004. The patient underwent ultrasound and MRI examinations at Prof. I.G.N.G Ngoerah Hospital and obtained results in the form of an anechoic area, with internal echo and a solid component in it in the submamary of the left breast, susp. infectious process, and multiple non-suspicious left axillary lymphadenopathy. Meanwhile, no nodules, masses, or cysts were found in the right breast, and no enlarged lymph nodes in the right axilla were found. The patient was diagnosed with benign late peri-implant effusion after breast augmentation and underwent implant removal and capsulectomy after seeing the results of the MRI examination. Conclusion: An MRI examination can help identify an implant effusion after a breast augmentation procedure. Latar belakang: Breast augmentation merupakan prosedur pembedahan yang dikerjakan untuk meningkatkan ukuran payudara melalui penanaman implan maupun melalui transfer lemak. MRI merupakan baku emas standar untuk mengevaluasi integritas dari implan payudara, dengan sensitivitas mencapai 80-90%, dan spesifisitas 80-90% untuk mendeteksi adanya ruptur implan. Pada laporan kasus ini akan dibahas mengenai peranan MRI payudara pada kasus benign late peri- implant effusion pasca breast augmentation. Presentasi Kasus: Pasien perempuan 49 tahun datang dengan keluhan benjolan pada payudara kiri sejak tahun 2017. Pasien pernah melakukan operasi pemasangan implant payudara kanan kiri pada tahun 2004. Pada pasien dilakukan pemeriksaan ultrasonografi dan MRI di RSUP Prof. I.G.N.G Ngoerah didapatkan hasil berupa area anechoic, dengan internal echo dan komponen solid didalamnya pada submamary payudara kiri, susp. proses infeksi dan multiple non suspicious lymphadenopathy axilla kiri. Sedangkan tidak ditemukan adanya nodul, massa, maupun kista pada payudara kanan serta tidak ditemukan adanya pembesaran kelenjar getah bening pada axilla kanan. Pasien didiagnosis dengan benign late peri- implant effusion pasca breast augmentation dan dilakukan tindakan implant removal dan kapsulektomi setelah melihat hasil dari pemeriksaan MRI. Simpulan: Pemeriksaan MRI dapat membantu mengidentifikasi suati efusi perimplan pasca tindakan breast augmentation.
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Di Lorenzo, Matteo, Andrea Torsani, Paolo Tonveronachi, Samuele Baruch, and Christian Caldari. "Risk factors for early implant failure: a retrospective-multicentric study of 2323 implants in screw retained fixed full arch rehabilitation." Journal of Oral Medicine and Oral Surgery 29, no. 2 (2023): 24. http://dx.doi.org/10.1051/mbcb/2023022.
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Objectives: The aim of this retrospective study was to investigate possible risk factors for early implant failure in screw retained fixed full-arch rehabilitation. Methods: data of 487 patients (2323 implants) treated with full-arch rehabilitation supported by same implants brand were collected for the time period from 2017 to 2020 and examined to evaluate early implants failure rates. The following data were collected for statistical analysis: sex, age, health disorders (diabetes and hypertension) and bad habit (smoke) of the patient, location of the implant (maxilla or mandible, anterior or posterior site), type of implant's healing and bone regeneration procedures. Chi-squared test, bivariate comparison analysis and univariate mixed model analysis were used to estimate the effect of both patient-related and implant related variables on early implant failure as a potential risk factors. Results: 487 patients were included, 218 females (62.3 ± 9.14 of age) and 269 males (62.8 ± 10.11 of age) in 30 private institutions for a total of 2323 implants placed and a total of 526 screw retained fixed full arch rehabilitation. A total of 40 out of 2323 (1.7%) implants failed prematurely within 1 year, 32 in the maxilla 8 in the mandible. Bivariate comparison analysis and univariate mixed model analysis showed that female patient, implant placed in maxilla, age <61 years and submerged healed implants showed a statistically significant higher failure rate among the risk factors considered. Conclusions: Implants placed in the upper jaw and their modality of healing seems to be associated with a higher risk of early implant failure.
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Abd, Khudair A., Basima G. Ali, and Abbas S. AL-Mizraqchi. "Bacteriological Findings within Internal Implant Hole Following Flapless Implant Placement." Journal of Baghdad College of Dentistry 30, no. 3 (September 15, 2018): 13–16. http://dx.doi.org/10.26477/jbcd.v30i3.2525.
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Back ground: Microbial penetration inside the implant's internal hole creates a bacterial reservoir that is related with an area of inflamed connective tissue opposite the fixture-abutment junction and this can affect the health of the peri-implant tissue. Aims of the study: Evaluate the types aerobic and anaerobic bacterial count-percentage and difference between Aerobic and Anaerobic microflora in the implant screw hole three months after implant placement. Monitor the periodontal health status of all patients, throughout the study. Material and methods: Study methodology; Eight partially edentulous patients received 20 dental implants and these implants done with flapless surgical procedure. All patients examined clinically to determined their oral health status by examination of their plaque index, Gingival index and Bleeding on probing, each two weeks for 90 days (8visits) throughout the study period. Three months after that, the plaque sample collected from the internal hole of fixture and transfer to bacterial investigation and assessment the amount of anaerobic and aerobic bacteria. Results: Although the anaerobic viable count is higher than that of aerobic, but with statistically not significant difference between those counts (P>0.05). Keywords: screw hole, flapless surgical implant placement, bacterial count, Aerobic and Anaerobic bacteria
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Rowlands, Sam, Emma Cornforth, and Mira Harrison-Woolrych. "Pregnancies associated with etonogestrel implants in the UK: comparison of two 5-year reporting periods." BMJ Sexual & Reproductive Health 46, no. 1 (October 10, 2019): 26–31. http://dx.doi.org/10.1136/bmjsrh-2019-200338.
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Objectives(1) To identify pregnancies associated with the use of the contraceptive implants Implanon and Nexplanon in the UK during two 5-year reporting periods. (2) To classify the possible reasons for device failure in cases reported for each implant. (3) To examine any differences between reasons for pregnancies associated with these products.Study designExtraction of data from the UK spontaneous reporting system for adverse drug reactions in relation to etonogestrel implants. Reports indicating pregnancy were identified for the periods 2005–2009 (Implanon) and 2012–2016 (Nexplanon). Possible reasons for failure of the method in each reported case were assigned to one of eight predetermined categories.ResultsAfter exclusions, 229 Implanon and 234 Nexplanon cases contained sufficient information for analysis. True method failures accounted for a majority of the pregnancies in those using contraceptive implants (58%); the next most common cause was missing implants (26% of pregnancies). In all categories of cases, there was no difference in frequency of pregnancy when the two time periods were compared.ConclusionsThere is still potential for greater avoidance of pregnancies associated with etonogestrel implant use.ImplicationsThis study underscores the continuing need for taking a full drug history, timing the insertion on days 1–5 or according to recommended quick starting routines and palpating the arm after implant insertion.
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Vicente Neto, Pedro, Ana Lúcia Franco Micheloni, Cássio Rocha Scarduelli, Karina Eiras Dela Coleta Pizzol, Francisco De Assis Mollo Júnior, and Elcio Marcantônio Júnior. "Predictability and success rate of short implants." Journal of Research in Dentistry 5, no. 2 (February 28, 2018): 28. http://dx.doi.org/10.19177/jrd.v5e2201728-31.
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In oral rehabilitation with dental implants, severely resorbed alveolar ridges are a challenging problem due to the reduced height of the residual bone. Continuous search for minimally invasive procedures has resulted in the conception of reduced-length dental implants, decreasing the necessary amount of bone for implantation, thereby reducing the need of bone-grafts. Given the growing demand in the field of implant dentistry and the continuous development of surgical techniques, this study aimed to review the current literature on the predictability and success rate of short implants. Relevant articles published in the PubMed database between the years of 2004 and 2014 were selected using the following key-words: short dental implants, extra-short implants, survival rate, implant, mandible, maxilla, prognosis, implant survival, implant length. Based on the literature review, we concluded that short implants showed high predictability and high success rate in the short term, therefore they are one of the current options for the rehabilitation of atrophic alveolar ridges. Further longitudinal studies are necessary to define more reliably parameters for their proper use, ensuring the achievement of high success rates and survival rates with the use of this type of implant.o assess the attitude and practice of dental professionals towards using of advance radiographic technique.
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Li, Ling, Jungwon Lee, Heithem Ben Amara, Jun-Beom Lee, Ki-Sun Lee, Sang-Wan Shin, Yong-Moo Lee, Byoungkook Kim, Pangyu Kim, and Ki-Tae Koo. "Comparison of 3D-Printed Dental Implants with Threaded Implants for Osseointegration: An Experimental Pilot Study." Materials 13, no. 21 (October 28, 2020): 4815. http://dx.doi.org/10.3390/ma13214815.
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This study aimed to compare bone healing and implant stability for three types of dental implants: a threaded implant, a three-dimensional (3D)-printed implant without spikes, and a 3D-printed implant with spikes. In four beagle dogs, left and right mandibular premolars (2nd, 3rd, and 4th) and 1st molars were removed. Twelve weeks later, three types of titanium implants (threaded implant, 3D-printed implant without spikes, and 3D-printed implant with spikes) were randomly inserted into the edentulous ridges of each dog. Implant stability measurements and radiographic recordings were taken every two weeks following implant placement. Twelve weeks after implant surgery, the dogs were sacrificed and bone-to-implant contact (BIC) and bone area fraction occupied (BAFO) were compared between groups. At implant surgery, the primary stability was lower for the 3D-printed implant with spikes (74.05 ± 5.61) than for the threaded implant (83.71 ± 2.90) (p = 0.005). Afterwards, no significant difference in implants’ stability was observed between groups up to post-surgery week 12. Histomorphometrical analysis did not reveal a significant difference between the three implants for BIC (p = 0.101) or BAFO (p = 0.288). Within the limits of this study, 3D-printed implants without spikes and threaded implants showed comparable implant stability measurements, BIC, and BAFO.
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Toth, Arpad, Istabrak Hasan, Christoph Bourauel, Torsten Mundt, Reiner Biffar, and Friedhelm Heinemann. "The influence of implant body and thread design of mini dental implants on the loading of surrounding bone: a finite element analysis." Biomedical Engineering / Biomedizinische Technik 62, no. 4 (August 28, 2017): 393–405. http://dx.doi.org/10.1515/bmt-2016-0002.
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AbstractMini dental implants (MDI) were once thought of as transitional implants for treatment in selected clinical situations. Their reduced diameter makes them a very attractive option for patients with poor tolerance to maxillary and mandibular prostheses. Using the method of finite element analysis, a series of different designed MDI prototypes have been investigated. The prototypes differed in the geometry of implant body and/or design of implant head. The load transfer of the implant prototypes to the idealised alveolar bone has been regarded and the prototypes have been compared to each other and to a number of standard commercial implants. The prototype models have been virtually placed in the idealised bone with a cortical thickness of 1.5 mm and loaded laterally 30° from the implant's long axis. The condition of immediate loading was assumed for the numerical analyses through defining a contact interface between the implant and bone bed. The numerical analysis in this study showed that the design of the investigated prototype MDI of group 3 (mini-ball head) is the most advantageous design.
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Amorim, Vitor Santana, Natan Filipe Ribeiro Coqueiro, and Milton D’Almeida Ferreira Neto. "Preservação em próteses implantossuportadas: peri-implantite / reservation in implant-supported prostheses: Peri-implantitis." ID on line. Revista de psicologia 15, no. 58 (December 30, 2021): 67–75. http://dx.doi.org/10.14295/idonline.v15i58.3279.
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Resumo: A identificação e o tratamento da infecção ao redor do implante é uma etapa essencial na manutenção do implante osseointegrativo e isso reflete na vida útil da reabilitação. O principal objetivo do tratamento da peri-implantite é a utilização de métodos de descontaminação mecânica e química para eliminar a carga bacteriana na superfície do implante. O biofilme pode ser removido por métodos não cirúrgicos ou cirúrgicos. Nos casos mais graves, geralmente é necessário tratamento cirúrgico, cujo objetivo é corrigir o defeito ósseo existente, combinado com a aplicação do enxerto, para regenerar o tecido ósseo perdido no processo inflamatório. O propósito deste estudo é realizar uma revisão de literatura tendo como o tema preservação em próteses implantossuportadas: peri-implantite, a fim de guiar a conservação das reabilitações orais. Além de buscar maiores informações acerca do desenvolvimento da doença peri-implantar, bem como sua ligação com a doença periodontal e os fatores que contribuem para seu desenvolvimento. Para tanto, foram utilizados descritores como: “peri-implantite", "manutenção de implantes" e “ossointegração” nas bases de dados: Pubmed, Scielo, google acadêmico e Lilacs. Para possibilitar um melhor resultado, foram organizados tópicos para uma discussão final, sendo eles: conceito, etiologia, diagnóstico e tratamento. Foram encontradas dificuldades na manutenção dos implantes e a necessidade de se descrever o melhor planejamento para uma melhoria nos protocolos clínicos de preservação a fim de obter-se excelência nos desfechos clínicos.Abstract: The identification and treatment of infection around the implant is an essential step in the maintenance of the osseointegrative implant and this reflects on the lifetime of the rehabilitation. The main objective of peri-implantitis treatment is the use of mechanical and chemical decontamination methods to eliminate the bacterial load on the implant surface. Biofilm can be removed by non-surgical or surgical methods. In more severe cases, surgical treatment is usually necessary, the aim of which is to correct the existing bone defect, combined with the application of a graft, to regenerate the bone tissue lost in the inflammatory process. The purpose of this study is to conduct a literature review with the theme of preservation in implant-supported prostheses: peri-implantitis, in order to guide the conservation of oral rehabilitations. In addition to seeking more information about the development of peri-implant disease, as well as its connection with periodontal disease and the factors that contribute to its development. For this purpose, descriptors such as: “peri-implantitis”, “implant maintenance” and “bone integration” were used in the following databases: Pubmed, Scielo, academic Google and Lilacs. final discussion, namely: concept, etiology, diagnosis, and treatment. Difficulties were found in the maintenance of implants and the need to describe the best planning for an improvement in clinical preservation protocols in order to obtain excellence in clinical outcomes. Plaque control maintains the health of the soft tissue-implant interface.Keywords: Dental implants; Peri-implantitis; Bacterial plaque.
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Edelmann, Cornelia, Martin Wetzel, Anne Knipper, Ralph G. Luthardt, and Sigmar Schnutenhaus. "Accuracy of Computer-Assisted Dynamic Navigation in Implant Placement with a Fully Digital Approach: A Prospective Clinical Trial." Journal of Clinical Medicine 10, no. 9 (April 21, 2021): 1808. http://dx.doi.org/10.3390/jcm10091808.
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Background: This prospective clinical study aimed to investigate a possible deviation between the digitally planned implant position and the position achieved using dynamic navigation. The aim of the study was to establish clinical effectiveness and precision of implantation using dynamic navigation. Methods: Twenty consecutive patients received an implant (iSy-Implantat, Camlog, Wimsheim, Germany). One screw implant was placed in one jaw with remaining dentition of at least six teeth. The workflow was fully digital. Digital implant planning was conducted using cone-beam computed tomography (CBCT) and an intraoral scan of the actual condition. Twenty implants were subsequently placed using a dynamic computer-assisted procedure. The clinical situation of the implant position was recorded using an intraoral scan. Using these data, models were produced via 3D printing, and CBCTs of these models were made using laboratory analogs. Deviations of the achieved implant position from the planned position were determined using evaluation software. Results: The evaluation of 20 implants resulted in a mean angle deviation of 2.7° (95% CI 2.2–3.3°). The 3D deviation at the implant shoulder was 1.83 mm (95% CI 1.34–2.33 mm). No significant differences were found for any of the parameters between the implantation in the upper or lower jaw and an open or flapless procedure (p-value < 0.05). Conclusion: The clinical trial showed that sufficiently precise implantation was possible with the dynamic navigation system used here. Dynamic navigation can improve the quality of implant positioning. In particular, the procedure allows safe positioning of the implants in minimally invasive procedures, which usually cannot be performed freehand in this form. A clinical benefit and effectiveness can be determined from the results.
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Nappo, Antonio, Carlo Rengo, Giuseppe Pantaleo, Gianrico Spagnuolo, and Marco Ferrari. "Influence of Implant Dimensions and Position on Implant Stability: A Prospective Clinical Study in Maxilla Using Resonance Frequency Analysis." Applied Sciences 9, no. 5 (February 27, 2019): 860. http://dx.doi.org/10.3390/app9050860.
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Implant stability is relevant for the correct osseointegration and long-term success of dental implant treatments. The aim of this study has been to evaluate the influence of implant dimensions and position on primary and secondary stability of implants placed in maxilla using resonance frequency analysis. Thirty-one healthy patients who underwent dental implant placement were enrolled for the study. A total of 70 OsseoSpeed TX (Astra Tech Implant System—Dentsply Implants; Mölndal, Sweden) implants were placed. All implants have been placed according to a conventional two-stage surgical procedure according to the manufacturer instructions. Bone quality and implant stability quotient were recorded. Mean implant stability quotient (ISQ) at baseline (ISQ1) was statistically significant lower compared to 3-months post-implant placement (ISQ2) (p < 0.05). Initial implant stability was significantly higher with 4 mm diameter implants with respect to 3.5 mm. No differences were observed within maxilla regions. Implant length, diameter and maxillary regions have an influence on primary stability.
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Thalib, Bahruddin, Rifaat Nurrahma, Asmawati, Nurlindah Hamrun, Alqarama Mahardika, Ian Afifah Sudarman, and Rezky Wahyuni Syamsuddin. "Implant survival rate of patients in Dental Hospital Hasanuddin University: 8 years evaluation." Indonesian Journal of Prosthodontics 3, no. 2 (February 20, 2023): 92–96. http://dx.doi.org/10.46934/ijp.v3i2.147.
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Data on dental implant treatment's success and survival rate are still limited. Meanwhile, the data on the success and survival after implant placement and restoration can be used to evaluate materials, improve the dental implant treatment, and enhance the service quality at Hasanuddin University Dental Hospital. The purpose of this study is to analyze the dental implant survival rate, the contributing factors that enhance the survival rate, and the factors causing the failure of the dental implants at the Prosthodontic Clinic of Dental and Oral Hospital, Hasanuddin Uni-versity. The final study group consisted of 11 patients with 20 implants. Implant failure was categorized based on implant loss, mobility, or removal due to severe peri-implant infection or implant fracture. Implant survival rates were grouped based on sex, age, smoking habit, placement location, diameter, length, and placement time. The value of implant survival rate was assessed based on the presentation of successful implants. Of all 20 cases, five implants failed, indicating a cumulative implant survival rate of 75%. Based on the failure period, there are initial failure cases before loading and late failure cases after loading. One implant failed within the first six months, and two implants failed 2 years after insertion of the superstructure. The leading cause of implant failure before loading is osseointe-gration failure. In the case of implants that failed after installing the superstructure, peri-implantitis occurs continous-ly. It was concluded that the implant survival rate for patients at the Hasanuddin University Dental Hospital is 75%. Dental implant survival rates include gender, age, implant placement location, smoking habits, implant diameter, length, and immediate or delayed implant placement. The factors causing the failure of the implant in this study were osseointegration failure and peri-implantitis
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Melchner, Valentin, Edwin Sever Bechir, and Florentin Daniel Berneanu. "The importance of implant-supported overdentures in a bimaxillary complete edentulous patient – case report." Acta Stomatologica Marisiensis Journal 2, no. 2 (December 1, 2019): 229–34. http://dx.doi.org/10.2478/asmj-2019-0011.
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AbstractIntroduction. Complete edentulism is escorted by various comorbidities, which affect an individual. The management of edentulous patients was approached since the early days of dentistry.The aim of this case report was to present the implanto-prosthetic rehabilitation of a bimaxillary complete edentulous patient with implant-supported overdentures, by using Straumann dental implants.Case presentation. This case report presents the applied treatment to a bimaxillary complete edentulous patient, where the predictable osseointegration and implant stability after the placement of implants was possible, with the purpose to support the overdentures.Conclusions. The oral rehabilitation of complete bimaxillary edentulism through implant-supported overdentures is a procedure with a predictive treatment that presents beneficial aspects in the quality of life of the patients.
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Aragoneses, Juan, Javier Aragoneses, Vanessa Brugal, Margarita Gomez, and Ana Suarez. "Relationship between Implant Length and Implant Stability of Single-Implant Restorations: A 12-Month Follow-Up Clinical Study." Medicina 56, no. 6 (May 27, 2020): 263. http://dx.doi.org/10.3390/medicina56060263.
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Background and Objectives: Implant stability in vivo is contingent on multiple factors, such as bone structure, instrument positioning and implant surface modifications, implant diameter, and implant length. Resonance-frequency analysis is considered a non-invasive, reliable, predictable, and objective method by which to evaluate implant stability, due to its correlation with bone-to-implant contact. The purpose of this study was to evaluate the effect of implant length on the primary and secondary stability of single-implant crown rehabilitations, as measured by resonance-frequency analysis at different times. Materials and Methods: Implants of 10 and 11.5 mm were placed, and the resonance frequency was measured at the time of surgery (T0), as well as at 3 (T1), 6 (T2), and 12 (T3) months post-surgery. Results: A total of 559 implants were placed in 195 patients. Significant differences were observed when comparing the implant stability quotient (ISQ) values at T1, with values for 10-mm implants being greater than those for 11.5-mm implants (p = 0.035). These differences were also observed when comparing ISQ values for buccal and lingual areas. At T0, T2, and T3, no significant differences in ISQ values were observed. The use of 10-mm implants in the anterior maxilla yielded significantly greater values at T0 (p = 0.018) and T1 (p = 0.031) when compared with 11.5-mm implants. Significant differences in measurements were observed only for buccal areas (p = 0.005; p = 0.018). When comparing the sample lengths and sex, women with 11.5-mm implants showed significantly lower results than those with 10-mm implants (p < 0.001). Conclusions: There is a direct relationship between implants of a smaller length and greater ISQ values, with this relationship being most evident in the maxilla and in women.
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Miculescu, Florin, Lucian Toma Ciocan, Marian Miculescu, Daniela Meghea, Marin Bane, and Mihai Branzei. "Implant Surface Finishing Influence on Tissue-Implant Anchoring." Solid State Phenomena 216 (August 2014): 39–44. http://dx.doi.org/10.4028/www.scientific.net/ssp.216.39.
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The implant surface morphology and microstructure significantly affect cells and tissue quantity formed at the interface. Therefore, the biocompatibility of an implant is just one of many parameters that influence tissue response to metallic implants. In order to understand the importance of the surface morphology and microscopic structures, we must retain first the main problem that limit the application and operation of metal implants - the lack of implant viable anchoring within the tissue. On this basis, experimental studies were carried out on implants having different microstructures and macrostructures that have been used in order to achieve a better long-term anchoring and stability of the implant support.
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Leite, Andressa Rosa Perin, Danny Omar Mendoza Marin, Gabriela Giro, Ana Carolina Pero, Ligia Antunes Pereira Pinelli, and José Maurício dos Santos Nunes Reis. "Custom Cast Ball Attachments Used on Outdated Implants to Restore a Maxillary Implant-Supported Overdenture." Journal of Oral Implantology 43, no. 4 (August 1, 2017): 297–301. http://dx.doi.org/10.1563/aaid-joi-d-16-00156.
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The lack of compatible prosthetic components can be a complication during oral rehabilitation using outdated implants. The aim of the present clinical report was to describe an alternative technique for the fabrication of a maxillary implant-supported overdenture in a patient with 20-year-old dental implants using castable spherical patterns and ball attachments. The patient had been wearing a relined bar/clip overdenture in the mandible on 4 external-hexagon dental implants and a relined complete denture in the maxilla on 4 internal-hexagon implants due to abutment screw fracture inside of the implants, losing the attachment system. The remaining maxillary dental implants did not possess attachments compatible with current systems due to configuration changes by the manufacturer in the dental implant's platform and the components over time. Therefore, castable spherical patterns and cast ball attachments were used to fabricate a maxillary implant-supported overdenture. The mandible rehabilitation was performed using 4 osseointegrated dental implants with a fixed implant-supported prosthesis. The use of cast ball attachments on the maxillary dental implants avoided invasive procedures on the remaining implants. Considering the lack of available compatible prosthetic components for the osseointegrated implants, this technique was considered a viable and satisfactory treatment option.
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Saksø, Mikkel, Stig S. Jakobsen, Henrik Saksø, Jørgen Baas, Thomas Jakobsen, and Kjeld Søballe. "Acid Etching and Plasma Sterilization Fail to Improve Osseointegration of Grit Blasted Titanium Implants." Open Orthopaedics Journal 6, no. 1 (September 3, 2012): 376–82. http://dx.doi.org/10.2174/1874325001206010376.
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Interaction between implant surface and surrounding bone influences implant fixation. We attempted to improve the bone-implant interaction by 1) adding surface micro scale topography by acid etching, and 2) removing surface-adherent pro-inflammatory agents by plasma cleaning. Implant fixation was evaluated by implant osseointegration and biomechanical fixation. The study consisted of two paired animal sub-studies where 10 skeletally mature Labrador dogs were used. Grit blasted titanium alloy implants were inserted press fit in each proximal tibia. In the first study grit blasted implants were compared with acid etched grit blasted implants. In the second study grit blasted implants were compared with acid etched grit blasted implants that were further treated with plasma sterilization. Implant performance was evaluated by histomorphometrical investigation (tissue-to-implant contact, peri-implant tissue density) and mechanical push-out testing after four weeks observation time. Neither acid etching nor plasma sterilization of the grit blasted implants enhanced osseointegration or mechanical fixation in this press-fit canine implant model in a statistically significant manner.
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Matta, Ragai Edward, Lara Berger, Moritz Loehlein, Linus Leven, Juergen Taxis, Manfred Wichmann, and Constantin Motel. "Stress Distribution within the Peri-Implant Bone for Different Implant Materials Obtained by Digital Image Correlation." Materials 17, no. 9 (May 6, 2024): 2161. http://dx.doi.org/10.3390/ma17092161.
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Stress distribution and its magnitude during loading heavily influence the osseointegration of dental implants. Currently, no high-resolution, three-dimensional method of directly measuring these biomechanical processes in the peri-implant bone is available. The aim of this study was to measure the influence of different implant materials on stress distribution in the peri-implant bone. Using the three-dimensional ARAMIS camera system, surface strain in the peri-implant bone area was compared under simulated masticatory forces of 300 N in axial and non-axial directions for titanium implants and zirconia implants. The investigated titanium implants led to a more homogeneous stress distribution than the investigated zirconia implants. Non-axial forces led to greater surface strain on the peri-implant bone than axial forces. Thus, the implant material, implant system, and direction of force could have a significant influence on biomechanical processes and osseointegration within the peri-implant bone.
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Dare, Sneha, and Pavan Bajaj. "Evaluation of effectiveness of advanced platelet rich fibrin (A-PRF) with demineralized freeze-dried bone allograft (DFDBA) placed into fresh extraction sockets with immediate implant placement: A clinical and radiographic study." F1000Research 12 (April 25, 2023): 440. http://dx.doi.org/10.12688/f1000research.133342.1.
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Background: Dental implant placement has evolved over time with the introduction of numerous novel protocols. Following tooth extraction throughout the healing phase, alveolar ridge resorption is a potential issue that can be mitigated by the utilisation of a variety of techniques, one of which is the placement of immediate implants. The immediate implant treatment protocol offers numerous benefits, such as minimal surgical procedures, which thereby reduce overall treatment time, preserve bone height, and produce better aesthetic results, particularly in the anterior region. Such protocols have made implant insertion so much easier that results can now be anticipated more precisely. The distance between the lateral surface of an implant and surrounding alveolus is known as the jumping gap distance (JGD). JGD of >1.5 mm affects spontaneous bone healing. Research incorporating biomaterials such as membranes produced from blood and bone grafts has significantly contributed to the success of this therapy. Methods: This research will be carried out over the course of a year. Twelve implants will be placed in systemically healthy individuals with one tooth/teeth in the maxilla and/or mandible indicated for extraction. Using a two-stage protocol, implant placement will be done simultaneously after extraction along with augmentation with A-PRF and DFDBA. The second stage surgery will be conducted three months after implant placement. Within 3-6 weeks, abutments will be connected and the final prosthesis will be placed. Expected results: Crestal bone changes and implant stability after using of A-PRF and DFDBA will serve as indicators to determine the implant's success after 6 months. Conclusion: The augmentation procedures have shown to be successful in obtaining bone fill and in resolving bone defects that are present in proximity with implants. An immediate implant placement along with bone augmentation may decrease resorption of horizontal bone. Trial registration: REF/2023/03/064371.
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Gao, Xing, Manon Fraulob, and Guillaume Haïat. "Biomechanical behaviours of the bone–implant interface: a review." Journal of The Royal Society Interface 16, no. 156 (July 2019): 20190259. http://dx.doi.org/10.1098/rsif.2019.0259.
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In recent decades, cementless implants have been widely used in clinical practice to replace missing organs, to replace damaged or missing bone tissue or to restore joint functionality. However, there remain risks of failure which may have dramatic consequences. The success of an implant depends on its stability, which is determined by the biomechanical properties of the bone–implant interface (BII). The aim of this review article is to provide more insight on the current state of the art concerning the evolution of the biomechanical properties of the BII as a function of the implant's environment. The main characteristics of the BII and the determinants of implant stability are first introduced. Then, the different mechanical methods that have been employed to derive the macroscopic properties of the BII will be described. The experimental multi-modality approaches used to determine the microscopic biomechanical properties of periprosthetic newly formed bone tissue are also reviewed. Eventually, the influence of the implant's properties, in terms of both surface properties and biomaterials, is investigated. A better understanding of the phenomena occurring at the BII will lead to (i) medical devices that help surgeons to determine an implant's stability and (ii) an improvement in the quality of implants.
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Juboori, Mohammed Jasim AL, Mohammed Ahmed AL Attas, Raquel Zita Gomes, and Basma Fathi Alanbari. "Using Resonance Frequency Analysis to Compare Delayed and Immediate Progressive Loading for Implants Placed in the Posterior Maxilla: A Pilot Study." Open Dentistry Journal 12, no. 1 (October 18, 2018): 801–10. http://dx.doi.org/10.2174/1745017901814010801.
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Objective: Implants placed in the posterior region of the maxilla have a high incidence of implant failure due to poor bone quality, especially when immediate implant loading is needed. Immediate Progressive Loading (IPL) can enhance bone quality and may offer an alternative solution when Immediate Implant loading is needed. Methods: Six patients (one male and five females; 34-62 years old) were included in this study. Twelve implants were inserted in the posterior region of the maxilla. Resonance Frequency Analysis (RFA) was performed at the time of implant placement and after 1, 2, 3 and 6 months. ISQ (Implant Stability Quotient) values were compared between the Delayed Loading (DL) group after 2 months and the Progressive Loading (PL) group and between different time points for each group. Results: At implant placement, the mean ISQ values for PL and DL implants were 63 and 57, respectively. One month after implant placement, the mean ISQ value for PL implants was 73. Two months after implant placement, the mean ISQ value for PL implants was 75. Three months after implant placement, the mean ISQ values for PL and DL implants were 76 and 69, respectively. Six months after implant placement, the mean ISQ values for PL and DL implants were 79 and 76, respectively. Conclusion: Despite its limitations, this pilot study indicated that compared to DL, PL can enhance bone density and implant stability, resulting in greater early functionality and fewer surgery sessions.
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Sant’Anna, Hugo Robertson, Marcio Zaffalon Casati, Mounir Colares Mussi, Fabiano Ribeiro Cirano, Suzana Peres Pimentel, Fernanda Vieira Ribeiro, and Mônica Grazieli Corrêa. "Peri-Implant Repair Using a Modified Implant Macrogeometry in Diabetic Rats: Biomechanical and Molecular Analyses of Bone-Related Markers." Materials 15, no. 6 (March 21, 2022): 2317. http://dx.doi.org/10.3390/ma15062317.
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DM has a high prevalence worldwide and exerts a negative influence on bone repair around dental implants. Modifications of the microgeometry of implants have been related to positive results in bone repair. This study assessed, for the first time, the influence of an implant with modified macrodesign based on the presence of a healing chamber in the pattern of peri-implant repair under diabetic conditions. Thirty Wistar rats were assigned to receive one titanium implant in each tibia (Control Implant (conventional macrogeometry) or Test Implant (modified macrogeometry)) according to the following groups: Non-DM + Control Implant; Non-DM + Test Implant; DM + Control Implant; DM + Test Implant. One month from the surgeries, the implants were removed for counter-torque, and the bone tissue surrounding the implants was stored for the mRNA quantification of bone-related markers. Implants located on DM animals presented lower counter-torque values in comparison with Non-DM ones, independently of macrodesign (p < 0.05). Besides, higher biomechanical retention levels were observed in implants with modified macrogeometry than in the controls in both Non-DM and DM groups (p < 0.05). Moreover, the modified macrogeometry upregulated OPN mRNA in comparison with the control group in Non-DM and DM rats (p < 0.05). Peri-implant bone repair may profit from the use of implants with modified macrogeometry in the presence of diabetes mellitus, as they offer higher biomechanical retention and positive modulation of important bone markers in peri-implant bone tissue.
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Magno-Padron, David A., Jessica Luo, Terry C. Jessop, Jared W. Garlick, Joanna S. Manum, Gentry C. Carter, Jayant P. Agarwal, and Alvin C. Kwok. "A population-based study of breast implant illness." Archives of Plastic Surgery 48, no. 4 (July 15, 2021): 353–60. http://dx.doi.org/10.5999/aps.2020.02117.
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Background Despite evidence supporting the safety of breast implants, some women associate their implants with adverse health effects and have called this syndrome “breast implant illness.” We sought to characterize breast implant illness symptoms and to report how implant removal affects their symptoms.Methods An anonymous 20 question survey was administered to the Facebook group: “UTAH Breast Implant Illness” to characterize the symptoms these women attributed to their breast implants. Several questions allowed us to evaluate how implant removal affected women’s symptoms.Results Of the 182 respondents, 97% report that implants negatively affect their health and 95% identify these symptoms with breast implant illness. Ninety-six percent of respondents had implants placed for cosmetic reasons and 51% had silicone implants. The most common symptoms associated with breast implant illness are brain fog (95%), fatigue (92%), joint pain (80%), and hair loss (74%). Sixty percent of respondents learned about breast implant illness from family/friends and/or social media platforms (56%), 40% of respondents had their implants removed, and 97% report relief of their symptoms post-removal (23% complete, 74% partial). Following explantation, there was a significant improvement in all but one reported symptom. An association was found between the number of symptoms reported prior to explantation and the number of symptoms resolving following explantation.Conclusions Breast implant illness is a syndrome characterized by fatigue, decreased focus, hair loss, and joint pain after the placement of breast implants. Nearly all patients report improvement of symptoms after implant removal. Significant efforts should be made to better understand breast implant illness and its etiology.
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Chuah, CT, SP Chee, KS Fong, YM Por, CT Choo, C. Luu, and LL Seah. "Integrated Hydroxyapatite Implant and Non-integrated Implants in Enucleated Asian Patients." Annals of the Academy of Medicine, Singapore 33, no. 4 (July 15, 2004): 477–83. http://dx.doi.org/10.47102/annals-acadmedsg.v33n4p477.
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Introduction: This study compares the outcome and complications of integrated hydroxyapatite implant and non-integrated orbital implants following enucleation in Asian patients. Materials and Methods: This is a retrospective study of enucleated patients with coralline hydroxyapatite implants versus non-integrated implants (acrylic, glass and silicone) at the Singapore National Eye Centre from January 1991 to December 2000. The outcomes measured were implant migration, extrusion, socket infection, conjunctival dehiscence and implant exposure. Statistical analysis was done using the 2-sample t-test. Results: Twenty-one patients had the hydroxyapatite implant and 38 non-integrated implants (27 acrylic, 9 glass and 2 silicone). The mean duration of follow-up was 2.7 years and 4 years for the hydroxyapatite implant and non-integrated implants respectively. Three patients with pre-existing severe socket contracture before enucleation surgeries were excluded from the study. Four cases of implant migration, 4 cases of implant extrusion and 3 cases of socket infection were encountered; all were sockets fitted with non-integrated implants. There was a higher rate of conjunctival dehiscence for sockets with hydroxyapatite implants (6 out of 21) compared to sockets with non-integrated implants (3 out of 35). This was statistically significant (P = 0.048). Conclusion: Implant complications of migration, extrusion and socket infection were found in non-integrated implants and none in coralline hydroxyapatite implants, which had a significantly higher rate of conjunctival dehiscence. Most of these were easily managed with only a small number progressing to implant exposure.
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Bagnasco, Francesco, Paolo Pesce, Domenico Baldi, Francesco Motta, Francesco Pera, Nicola De Angelis, and Maria Menini. "Dental Implants with External Hex Inclined Shoulder in Full-Arch Immediate Loading Rehabilitations of the Maxilla." Dentistry Journal 12, no. 5 (May 8, 2024): 131. http://dx.doi.org/10.3390/dj12050131.
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Background: Coaxial implants with an inclined neck might overcome some problems related to angulation of the implant axis when using tilted implants. Therefore, the aim of the present work was to conduct a narrative review of the current literature and to present a case series comparing traditional and coaxial external hex implants in full-arch immediate loading rehabilitations of the maxilla. Methods: A total of 13 external hex tapered implants (Southern Implants) was inserted in the upper jaw of 3 patients. Each patient received two tilted implants in distal sites. In one randomly selected quadrant, the tilted implant was a standard implant, while a Co-Axis® implant with a 24° inclination of the implant shoulder was inserted on the other hemi-arch. Straight conical abutments were screwed on coaxial implants while multiunit abutments of appropriate inclination were screwed as needed on the other implants to correct their axes. Peri-implant bone level was recorded radiographically at T0 (delivery of the immediate loading prosthesis), and at 3, 6, 12, and 24 months of healing and then annually. Plaque index, probing depth, and bleeding on probing were also evaluated. Cumulative implant survival rate (CSR) was calculated, and biological or technical complications were recorded as well as the operator satisfaction towards the use of coaxial implants. Results: The preliminary data collected did not show significant differences in peri-implant tissues health and maintenance over time between the two implant types. No implants failed, and both implant types proved to be favorable for full-arch rehabilitation using tilted implants. Coaxial implants facilitated the prosthodontic procedures. However, a learning curve is required in order to optimize their insertion. Conclusions: Both implants proved to be reliable and suitable for achieving clinical success in full-arch immediate loading rehabilitations, but further research with longer follow-up and larger sample size is needed to confirm these preliminary outcomes.
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Ramirez, Caroline M., Paulo Guilherme Coelho, and José Mauro Granjeiro. "Cytotoxicity and Adhesion Evaluation of Nanothickness Ca/P-Based Bioceramics Coated Titanium." Key Engineering Materials 396-398 (October 2008): 319–22. http://dx.doi.org/10.4028/www.scientific.net/kem.396-398.319.
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Incorporation of bioceramics on the surface of dental implants has been utilized in an attempt to increase biological response of bone to materials. This paper reports the in vitro biological evaluation of Ca/P-based nanothickness bioceramic coated alumina-blasted/acid-etched titanium implants (AB/AE nanotite implant) and compare its performance to the untreated and uncoated implants, Ca/P-based nanothickness bioceramic coated untreated implants (untreated nanotite implant), alumina-blasted/acid-etched titanium implants (AB/AE implant) and hydroxyapatite plasma-sprayed implants (PSHA Implant). Balb/c 3T3 fibroblasts were used to asses the cytocompatibility of implant materials according to ISO-10993-5 protocols. Osteoblasts from Balb/c femurs seeded onto different implant surfaces showed the effect of surface topography and chemistry on cell adhesion. The results showed that all implants were not cytotoxic and that PSHA and AB/AE nanotite implants favored osteoblasts adhesion.
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Ajami, Elnaz, Cong Fu, Hai Bo Wen, Jeffrey Bassett, Sun Jin Park, and Marie Pollard. "Early Bone Healing on Hydroxyapatite-Coated and Chemically-Modified Hydrophilic Implant Surfaces in an Ovine Model." International Journal of Molecular Sciences 22, no. 17 (August 28, 2021): 9361. http://dx.doi.org/10.3390/ijms22179361.
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Implant topography affects early peri-implant bone healing by changing the osteoconduction rate in the surrounding biological environment. Implant surfaces have been designed to promote faster and stronger bone formation for rapid and stable prosthesis loading. Early peri-implant bone healing has been observed with a sandblasted, acid-etched implant that was chemically modified to be hydrophilic (cmSLA). The present study investigates whether early peri-implant bone healing extends to a rough surface implant with a high crystalline hydroxyapatite surface (TSV MP-1 HA). Three implants were randomly placed in porous trabecular bone within both medial femoral condyles of 10 sheep. Early peri-implant bone stability was measured at 3- and 6-weeks healing time following implant insertion. Results indicated a similar implant stability quotient between the implants at insertion and over time. The significant increase over time of reverse torque values with respect to insertion torque (p < 0.001) did not differ between the implants. However, the bone-to-implant contact of TSV MP-1 HA was significantly higher than that of cmSLA implants at 6 weeks (p < 0.01). These data validate previous findings of a hydrophilic implant surface and extend the observation of early osseointegration to a rough surface implant in porous trabecular bone.
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Koodaryan, Roodabeh, and Ali Hafezeqoran. "Effect of laser-microtexturing on bone and soft tissue attachments to dental implants: A systematic review and meta-analysis." Journal of Dental Research, Dental Clinics, Dental Prospects 15, no. 4 (December 5, 2021): 290–96. http://dx.doi.org/10.34172/joddd.2021.048.
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Background. It is critical to understand laser-microtextured implant collars’ influence on peri-implant pocket depths and marginal bone levels, especially in crucial areas. The present review investigated the peri-implant marginal bone loss (MBL) and pocket depths and failure rates of dental implants with laser-microtextured collars. Methods. An electronic search was run in the PubMed and Embase databases until September 15, 2019. Randomized and prospective clinical studies comparing peri-implant MBL and pocket depths and failure rates between implants with laser-microtextured and machined collar surfaces were included. Five studies (two cohort studies and three RCTs) were included in the meta-analysis after the inclusion and exclusion criteria and qualitative assessments were applied. The risk ratio of osseointegrated implant failure and mean differences in peri-implant MBL and pocket depths were calculated using the Comprehensive Meta-Analysis (CMA) software. Results. Implants with laser-microtextured collars exhibited significantly better marginal bone level scores (P<0.001; MD: 0.54; 95% CI: 0.489‒0.592) and a significant reduction in peri-implant probing depths than implants with machined collars (P<0.001; MD: 1.01; 95% CI: 0.90‒1.13). The assessed studies showed that 17 out of 516 implants failed (3.29%), comprising nine implants with machined (3.62%) and eight implants with laser-microtextured collars (2.98%). However, no significant differences were detected in the implant neck surface characterization (P=0.695; RR: 1.205; 95% CI: 0.472‒3.076). Conclusion. This study suggests that laser-microtexturing of implant collar significantly affected the peri-implant MBL and probing depths. Although no significant differences were noted in implant failure rates between implants with laser-microtextured and machined collar surfaces, the peri-implant MBL and probing depths with laser-microtextured collars were significantly lower than the machined collars.
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Vermeulen, Lisa, Aladdin Speelman, Valdiela Daries, and Vincent Philips. "Development of a radiographic dental implant guide for identification of dental implant types." South African Dental Journal 75, no. 8 (September 30, 2020): 432–37. http://dx.doi.org/10.17159/2519-0105/2020/v75no8a3.
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INTRODUCTION: Identification of dental implant types can be a complex process for inexperienced health care professionals. Dental implants can have subtle differences in their morphology, which make it difficult to distinguish them from one another The unique appearance of dental anatomy and the placement of custom restorations ensure accurate identification of bodies or human remains when radiographic techniques are correctly applied. AIMS AND OBJECTIVES: To develop a radiographic dental implant guide for ten common dental implant types currently used in the Western Cape, South Africa; using their morphological characteristics observed on pantomographs. DESIGN: The methodology considered for this research study was a positivist approach through a quantitative, exploratory, non-experimental research design. METHODS: Ten commonly used dental implants were radiographed at straight tube (ST), off-centre (OC) and severe off-centre (SOC) angles to create a reference instrument Two reviewers used the morphologies of the different dental implant types, namely the apex, thread and neck, observed on ante-mortem pantomographs, and compared it to the appearance of the dental implants in the reference instrument to make a positive identification match. The straight tube image of all ten dental implant types in the reference instrument was used as the initial point of reference to positively identify the morphological characteristics of each dental implant type on the pantomographs. RESULTS: A total of 380 dental implants could be identified on 105 pantomographs reviewed. Of the 380 dental implants, 350 dental implants (91%) were identified as dental implant types listed in the reference instrument while 30 dental implants were identified as another type of dental implant type not listed in the reference instrument A total of 208 dental implants (54.2%) could be positively identified on the ante-mortem pantomographs using the straight tube images in the reference instrument. The morphological characteristics of the dental implant types were described using x-ray imaging of dental implants. The ten commonly used dental implants types could be positively identified by two independent reviewers and based on this a radiographic dental implant guide was developed. CONCLUSION: Each dental implant type had unique morphological characteristics as well as similarities which enabled distinction between the different dental implant types. The dental implant guide developed could be used by dentistry and radiography students. The dental implant guide may be useful in the field of forensic dentistry and forensic radiology.
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Carossa, Massimo, Mario Alovisi, Armando Crupi, Giulia Ambrogio, and Francesco Pera. "Full-Arch Rehabilitation Using Trans-Mucosal Tissue-Level Implants with and without Implant-Abutment Units: A Case Report." Dentistry Journal 10, no. 7 (July 1, 2022): 116. http://dx.doi.org/10.3390/dj10070116.
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Recently, tissue-level implants with a convergent collar have been introduced. While different studies have investigated the outcomes of this implant design in the rehabilitation of single teeth, its use in full-arch rehabilitation has yet to be investigated. The present case report describes the clinical outcomes of a full-arch immediate loading rehabilitation using tissue-level implants, with and without using implant-abutment units, with 2 years of follow-up. A female patient with mandibular terminal dentition and a high level of bone resorption (distal areas with a few millimeters of residual bone in the vertical dimension and both distal and anterior areas with narrow crestal bone in the horizontal dimension) was seen at the C.I.R Dental School, Turin, Italy. The patient was seeking to be rehabilitated with fixed prosthodontics, and she was found eligible for an immediate loading implant full-arch rehabilitation. Four implants were inserted in the same appointment. The two anterior implants were inserted straight and connected directly to the prosthesis (no abutments); the two distal implants were tilted in order to avoid the alveolar nerve and connected to two 30° angulated abutments. Two years post-implant placement, all of the implants were successfully integrated, resulting in an implant survival rate of 100%. The peri-implant soft tissues were stable at all the implant sites. No differences were highlighted between those implants with and without abutments. Within the limitations of the present clinical report, implant full-arch rehabilitations with tissue-level implants both with and without implant-abutment units showed optimal outcomes after two years of follow-up. Further research is encouraged to confirm whether this implant design may be a valid alternative to traditional implants in this type of rehabilitation, with or without implant-abutment units.
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Caggiano, Mario, Alfonso Acerra, Roberta Gasparro, Marzio Galdi, Valerio Rapolo, and Francesco Giordano. "Peri-Implant Bone Loss in Fixed Full-Arch Implant-Supported Mandibular Rehabilitation: A Retrospective Radiographic Analysis." Osteology 3, no. 4 (November 14, 2023): 131–39. http://dx.doi.org/10.3390/osteology3040014.
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Background: the aim of the study was to assess, through orthopantomograms (OPGs), the existence of peri-implant bone loss of distal implants in implant-supported full-arch mandibular restorations. A comparison between full-arch implant-supported rehabilitations performed in the inter-foraminal region and full-arch rehabilitations that include implant insertion distal to the mental foramen was conducted. Methods: a retrospective observational analysis of 17,950 OPGs from 2010 to 2020 was conducted. The presence of fixed implant-supported prostheses in a fully edentulous mandible was the inclusion criteria of the study. OPGs were divided according to the number of implants (four, six, and eight), position of the implants (mesial or distal to the mental foramen), and positioning patterns (models 1, 2, 3, 4, and 5). Results: a total of 51 OPGs were included in the study, 19 of which showed peri-implant bone loss. In particular, 16 belonged to the six-implant rehabilitation group and 3 to the eight-implant rehabilitation group; none of the four-implant-supported rehabilitations were affected by peri-implant bone loss. In all rehabilitations affected by peri-implant bone loss, the distal implant was the most involved, in particular the implant in positions 36 and 46. Conclusions: implants distal to the mental foramina are more susceptible than mesial implants to bone resorption in full-arch fixed implant-supported prostheses. This significant difference should be investigated further for the presence and synergy of biomechanical factors that could act predominantly in this area, such as mandibular flexure and occlusal loading.
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Lopez, Camilo Andres Villabona, Marco Antônio Amorin Vasco, Edwin Ruales, Karin Apaza Bedoya, Cesar Magalhaes Benfatti, Osvaldo Luis Bezzon, and Tatiana Miranda Deliberador. "Three-Dimensional Finite Element Analysis of Stress Distribution in Zirconia and Titanium Dental Implants." Journal of Oral Implantology 44, no. 6 (December 1, 2018): 409–15. http://dx.doi.org/10.1563/aaid-joi-d-16-00109.
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Zirconia has been presented as an alternative biomaterial to titanium, commercially presented as a single-body implant and/or as an abutment, demonstrating clinically biocompatible favorable results in white and rose esthetics. However, the number of long-term in vivo studies and mechanical tests evaluating the response of stress distribution compared with titanium implants is still limited. The aim of the study was to compare the principal peak stresses in the peri-implant bone around titanium and zirconia implants using the finite element method. Four groups of 3-dimensional models were constructed for the tests: G1, external hexagon titanium implant with a zirconia abutment; G2, zirconia implant with a zirconia abutment; G3, single-body titanium implant; and G4, single-body zirconia implant. Axial and oblique loads of 100 N at 45° were simulated in the prosthetic crown. The bone results showed that the peak stresses decreased by 12% in zirconia implants with 2 parts for axial load and 30% for the oblique load. In single-body implants, the peak stresses decreased 12% in the axial load and 34% in the oblique load when a zirconia implant was used compared with a titanium implant. Although the stress values in megapascals are similar, it can be concluded that the zirconia implants decrease the stress peaks at the peri-implant bone area around the implant platform when compared with titanium implants.
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Costa Castillo, María, Martín Laguna Martos, Rocío Marco Pitarch, Marina García Selva, Silvia del Cid Rodríguez, Carla Fons-Badal, and Rubén Agustín Panadero. "Analysis of Peri-Implant Bone Loss with a Convergent Transmucosal Morphology: Retrospective Clinical Study." International Journal of Environmental Research and Public Health 19, no. 6 (March 15, 2022): 3443. http://dx.doi.org/10.3390/ijerph19063443.
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Objective: The aim of this study was to analyze the peri-implant bone loss of infracrestal, supracrestal, and crestal implants from the day of placement and up to 1 year of prosthetic loading. Material and methods: A retrospective clinical study was carried out. The sample consisted of 30 implants placed on 30 patients. It was divided into three groups: infracrestal (n = 10), crestal (n = 10), and supracrestal (n = 10) implants. Results: Following the statistical analysis, it was observed that, 4 months after implant placement, the mean values of total peri-implant bone loss were 0.04 mm in infracrestal implants, 0.26 mm in crestal implants, and 0.19 mm in supracrestal implants. At the end of one year of prosthetic loading, the peri-implant bone loss was 0.12 mm in infracrestal implants, 1.04 mm in crestal implants, and 0.27 mm in supracrestal implants. It was determined that peri-implant bone loss in crestal implants was significantly higher than in supracrestal implants, and these in turn were significantly higher than in infracrestal implants. Conclusions: The implants that obtained a better biological behavior on peri-implant bone tissue were the infracrestal implants with a converging transmucosal abutment.
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Mangano, Francesco, Fabrizia Luongo, Jamil Awad Shibli, Sukumaran Anil, and Carlo Mangano. "Maxillary Overdentures Supported by Four Splinted Direct Metal Laser Sintering Implants: A 3-Year Prospective Clinical Study." International Journal of Dentistry 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/252343.
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Purpose. Nowadays, the advancements in direct metal laser sintering (DMLS) technology allow the fabrication of titanium dental implants. The aim of this study was to evaluate implant survival, complications, and peri-implant marginal bone loss of DMLS implants used to support bar-retained maxillary overdentures.Materials and Methods. Over a 2-year period, 120 implants were placed in the maxilla of 30 patients (18 males, 12 females) to support bar-retained maxillary overdentures (ODs). Each OD was supported by 4 implants splinted by a rigid cobalt-chrome bar. At each annual follow-up session, clinical and radiographic parameters were assessed. The outcome measures were implant failure, biological and prosthetic complications, and peri-implant marginal bone loss (distance between the implant shoulder and the first visible bone-to-implant contact, DIB).Results. The 3-year implant survival rate was 97.4% (implant-based) and 92.9% (patient-based). Three implants failed. The incidence of biological complication was 3.5% (implant-based) and 7.1% (patient-based). The incidence of prosthetic complication was 17.8% (patient-based). No detrimental effects on marginal bone level were evidenced.Conclusions. The use of 4 DMLS titanium implants to support bar-retained maxillary ODs seems to represent a safe and successful procedure. Long-term clinical studies on a larger sample of patients are needed to confirm these results.
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Doornewaard, Ron, Maarten Glibert, Carine Matthys, Stijn Vervaeke, Ewald Bronkhorst, and Hugo de Bruyn. "Improvement of Quality of Life with Implant-Supported Mandibular Overdentures and the Effect of Implant Type and Surgical Procedure on Bone and Soft Tissue Stability: A Three-Year Prospective Split-Mouth Trial." Journal of Clinical Medicine 8, no. 6 (May 31, 2019): 773. http://dx.doi.org/10.3390/jcm8060773.
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In fully edentulous patients, the support of a lower dental prosthesis by two implants could improve the chewing ability, retention, and stability of the prosthesis. Despite high success rates of dental implants, complications, such as peri-implantitis, do occur. The latter is a consequence of crestal bone loss and might be related to the implant surface and peri-implant soft tissue thickness. The aim of this paper is to describe the effect of implant surface roughness and soft tissue thickness on crestal bone remodeling, peri-implant health, and patient-centered outcomes. The mandibular overdenture supported by two implants is used as a split-mouth model to scrutinize these aims. The first study compared implants placed equicrestal to implants placed biologically (i.e., dependent on site-specific soft tissue thickness). The second clinical trial compared implants with a minimally to a moderately rough implant neck. Both studies reported an improvement in oral health-related quality of life and a stable peri-implant health after three years follow-up. Only equicrestal implant placement yielded significantly higher implant surface exposure, due to the establishment of the biologic width. Within the limitations of this study, it can be concluded that an implant supported mandibular overdenture significantly improves the quality of life, with limited biologic complications and high survival rates of the implants.
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Ibrahim, Ahmad, Marius Heitzer, Anna Bock, Florian Peters, Stephan Christian Möhlhenrich, Frank Hölzle, Ali Modabber, and Kristian Kniha. "Relationship between Implant Geometry and Primary Stability in Different Bony Defects and Variant Bone Densities: An In Vitro Study." Materials 13, no. 19 (September 30, 2020): 4349. http://dx.doi.org/10.3390/ma13194349.
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Aim: This in vitro study aimed to evaluate the effects of implant designs on primary stability in different bone densities and bony defects. Methods: Five implant types (tapered-tissue-level, tissue-level, zirconia-tissue-level, bone-level, and BLX implants) were used in this assessment. The implants were inserted into four different artificial bone blocks representing varying bone-density groups: D1, D2, D3, and D4. Aside from the control group, three different types of defects were prepared. Using resonance frequency analysis and torque-in and -out values, the primary stability of each implant was evaluated. Results: With an increased defect size, all implant types presented reduced implant stability values measured by the implant stability quotient (ISQ) values. Loss of stability was the most pronounced around circular defects. Zirconia and bone-level implants showed the highest ISQ values, whereas tissue level titanium implants presented the lowest stability parameters. The implant insertion without any thread cut led to a small improvement in primary implant stability in all bone densities. Conclusions: Compared with implants with no peri-implant defects, the three-wall and one-wall defect usually did not provide significant loss of primary stability. A significant loss of stability should be expected when inserting implants into circular defects. Implants with a more aggressive thread distance could increase primary stability.
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Chien, Hua-Hong, Robert L. Schroering, Hari S. Prasad, and Dimitris N. Tatakis. "Effects of a New Implant Abutment Design on Peri-Implant Soft Tissues." Journal of Oral Implantology 40, no. 5 (October 1, 2014): 581–88. http://dx.doi.org/10.1563/aaid-joi-d-12-00313.
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The purpose of this study was to assess the effects of a modified implant abutment design on peri-implant soft and hard tissues in dogs. Three months after extraction of mandibular premolar teeth, 3 dental implants were placed in each side of the jaw using a 1-stage approach. Implants on one side of the mandible received standard abutments (control), and implants on the contralateral side received modified, patented, grooved abutments (test). Two months after implant placement, animals were euthanized and specimens were prepared for histologic and histomorphometric assessment. The linear distance (in micrometers) was measured from the implant shoulder (IS) to the following landmarks: gingival margin (GM; distance IS-GM), most apical position of the junctional epithelium (JE; distance IS-JE), and bone crest (BC; distance IS-BC). Percent of bone-to-implant contact was also measured. Histologic assessment revealed that all implants were osseointegrated and that interimplant gingival fibers between test abutments appeared to be more numerous and organized than control abutments. The IS-GM and IS-JE distances in test implants were greater than the corresponding distances in control implants (P = .024 and P = .015, respectively), whereas crestal bone loss (IS-BC) was greater for control implants than test implants (P = .037). There were no differences between control and test implants in bone-to-implant contact (P = .69), which averaged close to 50%. These results suggest that the modified groove design incorporated in standard abutments confers both soft and hard tissue benefits.
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Klär, Virgilia, Matthias Karl, and Tanja Grobecker-Karl. "Bone Damage during Dental Implant Insertion: A Pilot Study Combining Strain Gauge and Histologic Analysis." Applied Sciences 12, no. 1 (December 29, 2021): 291. http://dx.doi.org/10.3390/app12010291.
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Besides alveolar bone quality, the drilling protocol applied in conjunction with the design of an implant are the major determinants of primary implant stability. Surgical trauma and bone compression resulting from implant insertion may constitute one cause for marginal bone resorption. Inserting two current bone-level implant designs (Astra; Straumann; n = 5) in bovine ribs, primary stability, strain development on the buccal bone plate and histologic signs of bone damage were recorded. Besides comparing the implant designs (Welch t-tests), all measurement parameters were checked for potential correlations (Pearson product moment correlation coefficients) with the level of significance set at α = 0.05. Considerable numbers of crack formation and plastic deformation of bone were observed after implant insertion. Straumann implants showed slightly greater values for insertion torque (p = 0.772), strain development (p = 0.893) and implant stability (p = 0.642). Significantly greater bone to implant contact (cortical p = 0.014; trabecular p = 0.016) was observed in Straumann implants, while Astra implants caused a significantly greater number of microcracks in cortical bone (p = 0.020). In Straumann implants, insertion torque correlated with bone to implant contact in the cortical area (p = 0.029) and the number of macrocracks in trabecular bone correlated with bone to implant contact (p = 0.029). In Astra implants, insertion torque and bone to implant contact in the trabecular area correlated (p = 0.007) as well as the number of macrocracks in trabecular bone and implant stability (p = 0.016). Additionally, in the area of cortical bone, the number of macrocracks correlated with bone to implant contact (p = 0.019). Implant placement results in bone damage of varying magnitude, which is governed by the drill protocol, implant macrodesign and bone quality.
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Ishak, Muhammad Ikman, Ruslizam Daud, Bakri Bakar, and Siti Noor Fazliah Mohd Noor. "A COMPARATIVE FINITE ELEMENT ANALYSIS OF REGULAR AND TOPOLOGICALLY OPTIMISED DENTAL IMPLANTS FOR MECHANICAL AND FATIGUE RESPONSES EVALUATION." IIUM Engineering Journal 24, no. 2 (July 4, 2023): 286–300. http://dx.doi.org/10.31436/iiumej.v24i2.2695.
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Topology optimisation is a prominent method to improve the performance of any systems by optimising geometrical factors to save materials without compromising the system functionality. Currently, there is limited published data discussing the topologically optimised dental implants that makes the matter still unclear. This study aimed to evaluate the mechanical and fatigue behaviours of regular and topologically optimised dental implant designs using 3-D FEA. Geometrical models were developed in accordance with ISO 14801 using SolidWorks 2020 before being analysed in ANSYS 18.1. The new implant design was created by topology optimisation analysis. The material properties of all parts were assumed to be isotropic, linearly elastic, and homogenous. Nine different compressive load values ranging from 100 to 500 N were applied on the loading structure as separated cases. The vertical and bottom surfaces of the holder were fully constrained. The results showed that the topologically optimised implant recorded about 12.3% lower implant stress than the regular implant. Both implant designs revealed a comparable displacement result with a percentage difference of only 2.3%. The optimised design was also found to produce longer fatigue life and approximately 12.3% higher safety factor compared to the regular design. The increase in the compressive load value has increased the stress and deformation, whilst decreased the fatigue life and safety factor in both designs. Although it was estimated that the volume of the new implant could be reduced to about 24% of the traditional one, the implant functionality may still be retained or even be improved. ABSTRAK: Pengoptimuman topologi adalah kaedah utama bagi meningkatkan prestasi mana-mana sistem dengan mengoptimumkan faktor geometri bagi menjimatkan bahan tanpa menjejaskan fungsi utama sistem. Dewasa ini, terdapat kurang data diterbitkan berbincang mengenai implan gigi yang dioptimumkan secara topologi yang menjadikan perkara ini masih tidak jelas. Kajian ini bertujuan bagi menilai perlakuan mekanikal dan kelesuan bagi reka bentuk implant gigi biasa dan yang dioptimumkan secara topologi menggunakan 3-D FEA. Model geometri telah dibangunkan mengikut ISO 14801 menggunakan SolidWorks 2020 sebelum dianalisis dalam ANSYS 18.1. Reka bentuk implan baharu telah dibuat melalui analisis pengoptimuman topologi. Sifat pada semua bahagian bahan diandaikan sebagai isotropik, keanjalan linear, dan homogen. Sembilan nilai beban mampatan berbeza antara 100 hingga 500 N telah dikenakan pada struktur pembebanan sebagai kes berasingan. Permukaan menegak dan bawah pemegang dikekang sepenuhnya. Keputusan menunjukkan bahawa implan yang dioptimumkan secara topologi merekodkan tegasan implan 12.3% lebih rendah daripada implan biasa. Kedua-dua reka bentuk implan menunjukkan hasil anjakan yang setanding dengan perbezaan peratusan hanyalah 2.3%. Reka bentuk yang dioptimumkan juga didapati menghasilkan hayat kelesuan yang lebih lama dan kira-kira 12.3% faktor keselamatan yang lebih tinggi berbanding reka bentuk biasa. Peningkatan dalam nilai beban mampatan telah meningkatkan tegasan dan perubahan bentuk, sementara mengurangkan hayat kelesuan dan faktor keselamatan dalam kedua-dua reka bentuk. Walaupun dianggarkan bahawa isipadu implan baru boleh dikurangkan kira-kira 24% daripada implan tradisional, fungsi implan masih boleh dikekalkan atau dipertingkatkan.
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Brandon, Harold J., Larry S. Nichter, and Dwight D. Back. "New Evaluation Procedure for Multi-Dimensional Mechanical Strains and Tangent Moduli of Breast Implants: IDEAL IMPLANT® Structured Breast Implant Compared to Silicone Gel Implants." Bioengineering 6, no. 2 (May 12, 2019): 43. http://dx.doi.org/10.3390/bioengineering6020043.
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The IDEAL IMPLANT® Structured Breast Implant is a dual lumen saline-filled implant with capsular contracture and deflation/rupture rates much lower than single-lumen silicone gel-filled implants. To better understand the implant’s mechanical properties and to provide a potential explanation for these eight-year clinical results, a novel approach to compressive load testing was employed. Multi-dimensional strains and tangent moduli, metrics describing the shape stability of the total implant, were derived from the experimental load and platen spacing data. The IDEAL IMPLANT was found to have projection, diametric, and areal strains that were generally less than silicone gel implants, and tangent moduli that were generally greater than silicone gel implants. Despite having a relatively inviscid saline fill, the IDEAL IMPLANT was found to be more shape stable compared to gel implants, which implies potentially less interaction with the capsule wall when the implant is subjected to compressive loads. Under compressive loads, the shape stability of a higher cross-link density, cohesive gel implant was unexpectedly found to be similar to or the same as a gel implant. In localized diametric compression testing, the IDEAL IMPLANT was found to have a palpability similar to a gel implant, but softer than a cohesive gel implant.
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Vollmer, Andreas, Babak Saravi, Gernot Lang, Nicolai Adolphs, Derek Hazard, Verena Giers, and Peter Stoll. "Factors Influencing Primary and Secondary Implant Stability—A Retrospective Cohort Study with 582 Implants in 272 Patients." Applied Sciences 10, no. 22 (November 15, 2020): 8084. http://dx.doi.org/10.3390/app10228084.
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The success rate of dental implants depends on primary and secondary stability. We investigate predictive factors for future risk stratification models. We retrospectively analyze 272 patients with a total of 582 implants. Implant stability is measured with resonance frequency analysis and evaluated based on the implant stability quotient (ISQ). A linear regression model with regression coefficients (reg. coeff.) and its 95% confidence interval (95% CI) is applied to assess predictive factors for implant stability. Implant diameter (reg. coeff.: 3.28; 95% CI: 1.89–4.66, p < 0.001), implant length (reg. coeff.: 0.67, 95% CI: 0.26–1.08, p < 0.001), and implant localization (maxillary vs. mandibular, reg. coeff.: −7.45, 95% CI: −8.70–(−6.20), p < 0.001) are significant prognostic factors for primary implant stability. An increase in ISQ between insertion and exposure is significantly correlated with healing time (reg. coeff.: 0.11, 95% CI: 0.04–0.19). Patients with maxillary implants have lower ISQ at insertion but show a higher increase in ISQ after insertion than patients with mandibular implants. We observe positive associations between primary implant stability and implant diameter, implant length, and localization (mandibular vs. maxillary). An increase in implant stability between insertion and exposure is significantly correlated with healing time and is higher for maxillary implants. These predictive factors should be further evaluated in prospective cohort studies to develop future preoperative risk-stratification models.
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Bauer, Thomas W., and Yaxia Zhang. "Implants and implant reactions." Diagnostic Histopathology 22, no. 10 (October 2016): 384–96. http://dx.doi.org/10.1016/j.mpdhp.2016.09.001.
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Aboushelib, Moustafa N., Noha A. Salem, Ahmed L. Abo Taleb, and Naglaa M. Abd El Moniem. "Influence of Surface Nano-Roughness on Osseointegration of Zirconia Implants in Rabbit Femur Heads Using Selective Infiltration Etching Technique." Journal of Oral Implantology 39, no. 5 (October 1, 2013): 583–90. http://dx.doi.org/10.1563/aaid-joi-d-11-00075.
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This study evaluates osseous healing of selective infiltration-etched (SIE) zirconia implants compared to as-sintered zirconia and titanium implants. Twenty implants of each group were inserted in 40 adult New Zealand white male rabbits. After 4 and 6 weeks, bone blocks containing the implants were retrieved, sectioned, and processed to evaluate bone-implant contact (BIC) and peri-implant bone density. SIE zirconia implants had significantly higher BIC and marginally higher bone density. The results suggest that selective infiltration-etched zirconia implant surface may improve implant osseointegration.
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M, Moulyashree,, and Mahantesha, S. "Configurations of implant threads: A Review." Scholars Journal of Dental Sciences 10, no. 05 (May 3, 2023): 86–90. http://dx.doi.org/10.36347/sjds.2023.v10i05.002.
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The dental implants are used for replacement of missing teeth, and it’s have been widely used for restore the function, esthetic, speech, and patient confidence. It forms the contact between the implant and the bone. The implant threads are altered to improve the initial contact, primary stability, increase the surface area, and facilitate dissipation of loads at the implant and bone surface. Implant thread design is one of the key factors it determines the primary stability and stress distribution during osseointegration, the threaded implants are reduced both stress on bone and sliding distance between the implant and bone. The primary stability is play a important role in less bone quality, double and triple threaded implant increases the primary stability than single threaded implant, the implant threads distribute mechanical stress equally at bone implant interface, lead to stability of dental implants and less bone resorption and also higher thread profile improve the primary stability, the success or failure of implants depend on the thread designs and quality of bone.
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Mohammadi, Bijan, Zahra Abdoli, and Ehsan Anbarzadeh. "Investigation of the Effect of Abutment Angle Tolerance on the Stress Created in the Fixture and Screw in Dental Implants Using Finite Element Analysis." Journal of Biomimetics, Biomaterials and Biomedical Engineering 51 (June 14, 2021): 63–76. http://dx.doi.org/10.4028/www.scientific.net/jbbbe.51.63.
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Today, an artificial tooth root called a dental implant is used to replace lost tooth function. Treatment with dental implants is considered an effective and safe method. However, in some cases, the use of dental implants had some failures. The success of dental implants is influenced by several biomechanical factors such as loading type, used material properties, shape and geometry of implants, quality and quantity of bone around implants, surgical method, lack of rapid and proper implant surface's integration with the jaw bone, etc. The main purpose of functional design is to investigate and control the stress distribution on dental implants to optimize their performance. Finite element analysis allows researchers to predict the stress distribution in the bone implant without the risk and cost of implant placement. In this study, the stresses created in the 3A.P.H.5 dental implant's titanium fixture and screw due to the change in abutment angles tolerance have been investigated. The results show that although the fixture and the screw's load and conditions are the same in different cases, the change of the abutment angle and the change in the stress amount also made a difference in the location of maximum stress. The 21-degree abutment puts the fixture in a more critical condition and increases the chance of early plasticization compared to other states. The results also showed that increasing the abutment angle to 24 degrees reduces the stress in the screw, but decreasing the angle to 21 degrees leads to increased screw stress and brings it closer to the fracture.
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Widayati, Agustina, Riska Faraswati, and Retno Hastri RR. "PENGARUH DUKUNGAN SUAMI DAN KADER POSYANDU TERHADAP MINAT IBU MENGGUNAKAN KB IMPLAN." Jurnal Ilmiah Kebidanan (Scientific Journal of Midwifery) 7, no. 2 (September 30, 2021): 110–15. http://dx.doi.org/10.33023/jikeb.v7i2.830.
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Berdasarkan Profil Kesehatan Indonesia cakupan KB implant sebesar 11,20%. Proporsi KB aktif implan di Jawa Timur sebesar 10,23%. Data dari Dinas Kesehatan Kota Probolinggo tahun 2019, di Kelurahan Sumbertaman terdapat KB Aktifnya yaitu 1.470 PUS dan Implan (146 PUS) serta yang ber KB di RW 1 sebanyak 21 orang. Tujuan menganalisis Pengaruh Dukungan Suami Dan Kader Posyandu terhadap Minat Ibu Menggunakan KB Implan di RW 1 Kelurahan Sumbertaman Kota Probolinggo. Desain penelitian analitik korelasional dengan metode cross sectional. Penelitian dilaksanakan Bulan Mei - Juni di kelurahan Sumbertaman Kota Probolinggo dengan 107 sampel. Data dianalisis dengan uji Spearman dan Regresi Ordinal ?: 0,05. Hasil penelitian menunjukkan dukungan suami sangat mendukung sebesar 47 responden (43,9%), dukungan kader posyandu kurang mendukung sebesar 59 responden (55,1%), minat ibu dalam menggunakan alat kontrasepsi implant dengan kategori minat tinggi sebesar 57 responden (53,5%) dengan p value : 0,000. Kesimpulan ada Pengaruh Dukungan Suami Dan Kader Posyandu Terhadap Minat Ibu Menggunakan KB Implan. Saran bagi puskesmas/tenaga kesehatan meningkatkan pemberian edukasi secara berkala kepada suami dan keluarga tentang pentingnya menggunakan alat kontrasepsi dan membentuk kelompok peduli KB. Kata kunci: Dukungan Suami, Dukungan Kader Posyandu, Minat Ibu, Alat Kontrasepsi Implan ABSTRACT Based on the Indonesian Health Profile, the coverage of implant family planning is 11.20%. The proportion of active implant family planning in East Java is 10.23%. Data from the Probolinggo Health Office in 2019, in Sumbertaman Village there were, namely 1,470 Childbearing Age Couple and implants (146 Childbearing Age Couple ) and 21 people who had an interest in implant Contraceptive in RW 1. The purpose was to analize the influence between husband support and Posyandu cadres to maternal interest in using implant family planning in RW 1, Sumbertaman, Probolinggo. The design of this research is correlational analytic using cross sectional method. The research was conducted on May - June in Sumbertaman, Probolinggo with 107 samples. Data collection analyzed by Spearman test and Ordinal Regression ?: 0.05. The results showed husband's support in the very supportive category was 47 respondents (43.9%), the support of posyandu cadres with less supportive criteria was 59 respondents (55.1%), the mother's interest in using implant contraceptives with high interest categories was 57 respondents (53,5%) with p value: 0,000. The conclusion of the study shows there is a influence between husband support and Posyandu cadres to maternal interest in using implant family planning. Suggestions are put forward for health centers / health workers to increase the provision of regular education to husbands and families about the importance of using contraceptives and to form family planning care groups or family planning villages. Keywords: Husband's Support, Posyandu Cadre Support, Mother's Interest, Implant Contraceptives