Relevant bibliographies by topics / Implant-supported prosthesi

Academic literature on the topic 'Implant-supported prosthesi'

Author: Grafiati
Published: 9 March 2023

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Journal articles on the topic "Implant-supported prosthesi"

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Venezia, Pietro, Ferruccio Torsello, Vincenzo Santomauro, Vittorio Dibello, and Raffaele Cavalcanti. "Full Digital Workflow for the Treatment of an Edentulous Patient with Guided Surgery, Immediate Loading and 3D-Printed Hybrid Prosthesis: The BARI Technique 2.0. A Case Report." International Journal of Environmental Research and Public Health 16, no. 24 (December 17, 2019): 5160. http://dx.doi.org/10.3390/ijerph16245160.

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Purpose: To describe a technique intended to transfer of the intermaxillary and occlusal relationships in a fully digital environment from a complete denture to an implant-supported 3D-printed hybrid prosthesis (an acrylic resin complete fixed dental prosthesis supported by implants). Methods: In edentulous cases, the physiological mandibular position should be determined before the immediate loading procedures. In some cases, the use of interim removable prostheses for a few weeks could be useful to test the new occlusion in centric relation and to verify the prosthetic project. When the correct intermaxillary relationships are achieved, it is difficult to transfer them from the provisional to the final prostheses, as impressions or scans of edentulous arches do not have reference points for intermaxillary records. This paper presents a complex case and the technique used to transfer information from a complete denture to an implant-supported prosthesis with a digital workflow. A prosthetic stent has been used to scan the edentulous mandibular arch and to record the intermaxillary relation. Results: The delivery of the hybrid implant-supported prostheses was carried out with no problems and minimal occlusal adjustments. The patient was extremely satisfied with the treatment and the situation remained stable at the 1-year follow up. Conclusions: The approach described in the present article predictably maintains prosthetic information and allows the delivery of a final implant-supported restoration with the same occlusal relationship as the one tested with the provisional diagnostic dentures.
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Mai, Hai Yen, Jae-Min Seo, Jae-Kwang Jung, and Du-Hyeong Lee. "Strategic Use of CAD-CAM Interim Restoration for the Recovery of the Vertical Dimension of Occlusion in the Posterior Partially Edentulous Jaw." Applied Sciences 10, no. 21 (October 31, 2020): 7735. http://dx.doi.org/10.3390/app10217735.

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Occlusal contact loss occasionally occurs following the placement of implant-supported fixed dental prostheses in the posterior region. This complication is caused by the change in the vertical dimension of occlusion after the recovery of mastication. The change is probably related to the prosthesis sinking phenomenon and previous mandibular dislocation. The use of interim prostheses could help re-establish the vertical dimension of occlusion. The definitive prostheses can then be accurately fabricated using digital techniques in the newly established vertical dimension. In this case report, we introduce a protocol incorporating a computer-aided design and computer-aided manufacturing (CAD-CAM) interim prosthesis and digital techniques to minimize the occurrence of unexpected initial occlusal changes in the prosthetic treatment of implant-supported prostheses in the posterior region.
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Montero, Javier. "A Review of the Major Prosthetic Factors Influencing the Prognosis of Implant Prosthodontics." Journal of Clinical Medicine 10, no. 4 (February 17, 2021): 816. http://dx.doi.org/10.3390/jcm10040816.

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Background: The treatment plan of prosthetic restorations supported by dental implants requires comprehensive scientific knowledge to deliver prostheses with good prognosis, even before the implant insertion. This review aims to analyze the main prosthetic determinants of the prognosis of implant-supported prostheses. Methods: A comprehensive review of the literature was conducted with a PICO (Patient Intervention Comparison Outcomes) question: “For partially or complete edentulous subjects treated with implant-supported prostheses, which prosthetic factors could affect clinical outcomes?”. A literature search was performed electronically in PubMed (MEDLINE), Scopus and Cochrane Library with the following equation [PROGNOS * OR RISK] FACTOR IMPLANT DENTAL, and by hand search in relevant journals and throughout the selected papers. Results: This revision was carried out based on 50 papers focused on several prosthodontics-related risk factors that were grouped as follows: implant-connection, loading protocol, transmucosal abutments, prosthetic fit, provisionalization, type of retention, impression technique, fabrication technique, and occlusion. More than a half of the studies were systematic reviews (30%), meta-analysis (16%), or prospective evaluations of prosthesis with various kinds of events (18%). However, narrative reviews of literature (14%) and in vitro/animal studies (16%) were also found. Conclusions: The current literature provides insufficient evidence for most of the investigated topics. However, based on the accumulated data, it seems reasonable to defend that the best treatment approach is the use of morse taper implants with transmucosal abutments, recorded by means of rigidly splinted copings through the pick-up technique, and screwed by milled prosthesis occlusally adjusted to minimize functional overloading.
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Bonnet, Anne Sophie, Marwan Daas, Michel Postaire, and Paul Lipiński. "Numerical Simulations of the Global Behaviour of Implant Supported or Retained Dental Prostheses." Materials Science Forum 638-642 (January 2010): 518–23. http://dx.doi.org/10.4028/www.scientific.net/msf.638-642.518.

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In spite of the recent efforts concerning prevention and treatment of dental diseases, total edentulism remains an important world health problem, even in industrialized countries. Different solutions to mandibular total edentulism are available from the classical removable denture to the implant supported prostheses. The aim of the present work is to compare, through finite element simulations, two distinct types of prosthetic solutions. The first one is an implant-supported prosthesis (ISP) using a “All-On-Four” base and the second one is a mandibular implant-retained overdenture (IRO) using two implants. A foodstuff situated on molar is modelled to simulate the mastication force. An orthotropic behaviour is assumed inside the symphyseal area. The results of the simulations show a strong influence of the prosthetic solution type on the stress and strain repartition in the implant and peri-implant bone. This can be explained by the difference of load transfer to bone between those two configurations. Indeed, in the implant-supported prosthesis, the totality of the mastication force is directly transmitted to peri-implant bone whereas the implant-retained solution benefits from a large participation of mucosa to the global load transfer from overdenture to bone.
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ALMEIDA, Híttalo Carlos Rodrigues de, Ellane Talita Silvano de SANTANA, Nikácio Adnner Tavares dos SANTOS, Patrícia Karla Macedo de MORAES, Yasmin Rafaelle Furtado de ARAÚJO, and Marleny Elizabeth Marquez de Martinez GERBI. "Clinical aspects in the treatment planning for rehabilitation with overdenture and protocol-type prosthesis." RGO - Revista Gaúcha de Odontologia 63, no. 3 (September 2015): 271–76. http://dx.doi.org/10.1590/1981-863720150003000032920.

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Objective: The aim of this study was to criticaly review the published literature regarding the clinical aspects involved in the rehabilitation of edentulous patients using Branemark protocol and overdenture prostheses. Methods: An active search was conducted in the LILACS, MEDLINE, PubMed, and SciELO databases using the descriptors: "Coating for dentures" (Overlay Prosthesis and Overdenture) and "Implant-supported fixed dental prosthesis" (Protesis dental de suporte implantado, Dental prosthesis, and Implant Supported Prosthesis) in Portuguese, English, and Spanish between January 2000 and October 2014. Results: The following parameters should be considered when selecting between Branemark protocol and overdenture prostheses: bone support, lip support, lip-line, upper lip length, oral mucosa conditions and size, alveolar ridge contour, crown-bone ratio, interarch space, and speaking space. Overdenture rehabilitation can provide many benefits to patients, such as prosthetic retention, stability, comfort, and improved aesthetics. Conclusions: This study highlights the need for a thorough individualized treatment planning to ensure that fixed prostheses and overdentures have an excellent prognosis when used appropriately in suitable patients at the appropriate time.
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Lumetti, S., G. Ghiacci, G. M. Macaluso, M. Amore, C. Galli, E. Calciolari, and E. Manfredi. "Tardive Dyskinesia, Oral Parafunction, and Implant-Supported Rehabilitation." Case Reports in Dentistry 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/7167452.

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Oral movement disorders may lead to prosthesis and implant failure due to excessive loading. We report on an edentulous patient suffering from drug-induced tardive dyskinesia (TD) and oral parafunction (OP) rehabilitated with implant-supported screw-retained prostheses. The frequency and intensity of the movements were high, and no pharmacological intervention was possible. Moreover, the patient refused night-time splint therapy. A series of implant and prosthetic failures were experienced. Implant failures were all in the maxilla and stopped when a rigid titanium structure was placed to connect implants. Ad hoc designed studies are desirable to elucidate the mutual influence between oral movement disorders and implant-supported rehabilitation.
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Gonzalez-Gonzalez, Ignacio, Hector deLlanos-Lanchares, Aritza Brizuela-Velasco, Jose-Antonio Alvarez-Riesgo, Santiago Llorente-Pendas, Mariano Herrero-Climent, and Angel Alvarez-Arenal. "Complications of Fixed Full-Arch Implant-Supported Metal-Ceramic Prostheses." International Journal of Environmental Research and Public Health 17, no. 12 (June 14, 2020): 4250. http://dx.doi.org/10.3390/ijerph17124250.

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We aimed to assess the biological and mechanical-technical complications and survival rate of implants of full-arch metal-ceramic prostheses, during five years of follow-up. 558 implants (of three different brands) retaining 80 full-arch metal-ceramic prostheses were placed in 65 patients, all of whom were examined annually for biological and mechanical-technical complications during the five years of follow-up. Descriptive statistics and univariate logistic regression were calculated. The cumulative survival rate of the implants was 99.8%, and 98.8% prosthesis-based. Mucositis was the most frequent of the biological complications and peri-implantitis was recorded as 13.8% at restoration-level, 16.9% at patient level and 2.0% at implant level. An implant length greater than 10 mm was shown to be a protective factor against biological complications. The mechanical-technical complications were associated with implant diameter, abutment/implant connection and retention system. Loss of screw access filling was the most frequent prosthetic complication, followed by the fracture of the porcelain. Full-arch metal-ceramic prostheses show a high prevalence of implant and prosthesis survival, with few biological and mechanical-technical complications.
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Jain, Himani, Tarun Kalra, Manjit Kumar, Ajay Bansal, and Deepti Jain. "Three-Dimensional Finite Element Analysis to Evaluate Stress Distribution in Tooth and Implant-Supported Fixed Partial Denture–An In Vitro Study." Dental Journal of Advance Studies 8, no. 03 (August 5, 2020): 084–91. http://dx.doi.org/10.1055/s-0040-1714331.

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Abstract Introduction This study was undertaken to assess the influence of different superstructure materials, when subjected to occlusal loading, on the pattern of stress distribution in tooth-supported, implant-supported, and tooth implant-supported fixed partial prostheses, using the finite element analysis with a comparative viewpoint. Materials and Methods The geometric models of implant and mandibular bone were generated. Three models were created in accordance with the need of the study. The first model was given a tooth-supported fixed partial prosthesis. The second model was given tooth implant-supported fixed partial prosthesis, and the third model was given implant-supported fixed partial prosthesis. Forces of 100 N and 50 N were applied axially and buccolingually, respectively. Results The present study compared the stresses arising in the natural tooth, implant, and the whole prostheses under simulated axial and buccolingual loading of three types of fixed partial dentures, namely, tooth-supported, tooth implant-supported, and implant-supported fixed partial dental prostheses using three different types of materials. Conclusion The pattern of stress distribution did not appear to be significantly affected by the type of prosthesis materials in all models. The maximum stress concentrations were found in the alveolar bone around the neck of the teeth and implants.
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Anitua, Eduardo, Juan Saracho, Gabriela Zamora Almeida, Joaquin Duran-Cantolla, and Mohammad Hamdan Alkhraisat. "Frequency of Prosthetic Complications Related to Implant-Borne Prosthesis in a Sleep Disorder Unit." Journal of Oral Implantology 43, no. 1 (February 1, 2017): 19–23. http://dx.doi.org/10.1563/aaid-joi-d-16-00100.

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Sleep bruxism and higher clench index have been associated with obstructive sleep apnea (OSA). However, there is no study that reports on the prosthetic complications in patients with OSA. Records of patients who had performed a sleep study to diagnose OSA were examined for the occurrence of prosthetic complications in implant-borne reconstructions. The primary outcome was the frequency of prosthetic complications. The secondary outcomes were anthropometric data, type of complication, type of prosthesis, type of retention, number of supporting implants, number of prosthetic units, and the presence of obstructive sleep apnea. Of the 172 patients, 67 had an implant-supported prosthesis, and all were included in the study. The mean age was 61 ± 10 years, and 36 were female. Thirty complications in 22 prostheses were identified in 16 patients. The complications were porcelain fracture (14 events), screw/implant fracture (8 events), screw loosening (3 events), and decementation (5 events). The follow-up time was 117 ± 90 months after placement of the prosthesis. The average time for complications to occur was 73 ± 65 months after the placement of the prosthesis. According to the apnea-hypopnea index (AHI), 49 patients had OSA. Thirteen of the 16 patients having a prosthetic complication also had OSA. The highest AHI and thus the severity of OSA was identified in patients with a fracture complication related to an implant, a screw, or a porcelain. The frequency of prosthetic complications has been higher in patients with obstructive sleep apnea.
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Flanagan, Dennis. "Gingival Embrasure Fill In Fixed Implant-Supported Prosthetics: A Review." Journal of Oral Implantology 41, no. 6 (December 1, 2015): e297-e300. http://dx.doi.org/10.1563/aaid-joi-d-14-00185.

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After provisional or definitive cementation of fixed implant-supported prostheses, spontaneous gingival proliferation may occur to fill the cervical embrasure areas of the prosthesis. Adequate oral hygiene, osseous spacing between the supporting implants and attached or immovable soft tissue may be the conditions that allow this phenomenon. This proliferation embrasure fill eliminates interproximal gingival voids, that is, black triangles, and makes the outcome more esthetically acceptable. Since interproximal prosthetic deign and implant positioning may be the primary factors for the fill, the gingival fill may be, in fact, an epulis.
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Dissertations / Theses on the topic "Implant-supported prosthesi"

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TOMMASATO, GRAZIA. "THE REGENERATION OF EDENTULOUS ATROPHIC RIDGES: PROS, CONS, AND EFFECTIVENESS OF THREE DIFFERENT SURGICAL OPTIONS." Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/804105.

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INTRODUCTION During the three-year doctoral period, the candidate developed 3 research projects which, although different, are all related to one of the most controversial topics of advanced implant dentistry which include procedures to make it possible the use of dental implants also in case of severely atrophic edentulous ridges. During the last decade, a variety of surgical procedures have been proposed, each of them with specific indications, contraindications, advantages and disadvantages. Despite the publication of numerous systematic reviews and meta-analyses focused on this fascinating topic, much controversy is still present between clinicians and researches. The aims of the PhD candidate have been to focus on three main areas related to the correction of severely atrophic edentulous ridges in order to: 1) update the present knowledge on this particular field thank to a systematic analysis of the available literature; and 2) develop three different research projects specifically dedicated to regeneration/reconstruction procedures. More in detail, one line of research was focused on the evaluation of medium to long-term results of dental implants placed in severely atrophic jaws reconstructed with autogenous calvarial bone blocks covered with bovine bone mineral and collagen membranes. Seventy-two patients and 330 implants were involved in this retrospective study with a mean follow-up after implant loading of 8 years, ranging from 3 to 19 years. The second project, similar in structure to the previous one, was designed to evaluate retrospectively the medium and long-term results (with a mean follow-up of 10 years) of implants placed in atrophic edentulous ridges grafted with autogenous mandibular blocks covered with bovine bone mineral and collagen membranes. Seventy-five patients, 82 sites, and 182 implants were involved in this study. The third line of research allowed the candidate to design a prospective study which involved edentulous and atrophic patients treated with guided bone regeneration using CAD-CAM customized titanium meshes. The effectiveness of digitally customized titanium meshes in association with autologous bone particles and bovine bone mineral for the regeneration of atrophic edentulous sites, and the survival rate of implants placed in the reconstructed areas were evaluated. A histomorphometric analysis of mandibular regenerated bone were also performed. Forty-one patients, 53 sites, and 106 implants were involved in this study and the follow-up of implants before and after loading ranged from 2 to 23 months (mean: 11 months), and from 1 to 15 months (mean: 6 months), respectively. This latter research is of particular interest, as the literature supporting this particular technique is scarce, and available data are difficult to be compared, because they have been collected in a non- systematic way and mainly retrospectively. In all these studies, a dedicated questionnaire, adapted from the OHIP-14 survey, was performed to evaluate patients’ satisfaction (patient reported outcome measurements – PROMs) as regards the treatment received. It was therefore possible to elaborate a discussion of the results on two different levels: the first associated to the specific regenerative / reconstructive technique; the second allowed a comparison among the different treatment solutions. AIMS The aim of the first and second project, two retrospective longitudinal cohort studies, is to present the medium to long-term outcome of bone reconstructions with calvarium or mandibular grafts , respectively by evaluating: a) complication rate of the reconstructive procedure; b) bone resorption before implant placement; c) peri-implant bone resorption; d) implant-related complications; e) implant survival rate; and, f) patient’s satisfaction inquired with a dedicated questionnaire. The aims of the third project, a prospective, single-arm clinical study, are to evaluate: a) the effectiveness of digitally customized titanium meshes in association with autologous bone particles and BBM and covered with collagen membranes for the regeneration of atrophic edentulous sites; b) the survival rate of implants placed in the regenerated areas and, c) PROMs inquired with a dedicated questionnaire. MATERIALS & METHODS Project 1 – calvarium From 1998 to 2014, 72 patients presenting with severe bone defects were reconstructed with autogenous calvarial bone blocks covered with bovine bone mineral granules and collagen membranes. Four to 9 months later, 330 implants were placed and loaded 3 to 9 months later. The follow-up ranged from 3 to 19 years (mean: 8.1 years). Project 2 – ramus from 1997 to 2015, 75 patients presenting with bone defects of the jaws were grafted with autogenous mandibular bone blocks. One-hundred-eighty-two implants were placed 4 to 12 months later and loaded 3 to 10 months later: the mean follow-up was 10 years (range: 3-16 years). Project 3 – GBR with Ti-mesh 41 patients, presenting with 53 atrophic sites were enrolled between 2018 and 2019. GBR was obtained with titanium meshes filled with autogenous bone chips and bovine bone mineral (BBM). After a mean of 7 months (range: 5-12 months), meshes were removed and 106 implants placed. After a mean of 3.5 months (range: 2-5 months), implants were uncovered and prosthetic restorations started. RESULTS Project 1 – calvarium No patients developed severe complications, such as complete loss or resorption of the grafts. A dehiscence occurred in 6 patients, which developed a mild graft resorption. The mean peri-implant bone resorption before implant placement was 0.13 mm (SD ± 0.71). All patients received the planned number of implants. Three patients were lost during the follow-up. The survival rate of implants at the end of the observation period was 98.5%. The mean peri-implant bone resorption ranged from 0.00 mm to 4.87 mm (mean: 1.11 mm). Finally, 90% of the patients were very satisfied as regards the treatment received. Project 2 – ramus Post-operative recovery was uneventful in the majority of patients. An early dehiscence occurred in three patients, but with no significant bone loss, while 3 experienced temporary paresthesia. The mean vertical and horizontal bone resorption before implant placement was 0.18 mm (standard deviation (SD)=0.43) and 0.15 mm (SD=0.42), respectively. The mean peri-implant bone loss ± standard deviation was 1.06±1.19 (range 0.00 to 5.05) at patient level, and 1.11±1.26 (range 0.00 to 5.20) at implant level. Two implants in 2 patients lost integration and were removed; 10 implants in 7 patients developed peri-implantitis, but healed after surgical treatment. The cumulative implant survival and success rates were 98.11% and 85.16%, respectively. PROMs were very positive: 95.5% of patients would have undergone the procedure again. Project 3 – GBR with Ti-mesh out of 53 sites, 11 underwent mesh exposure: 8 of them were followed by uneventful integration of the graft, while 3 by partial bone loss. The mean vertical and horizontal bone gain after reconstruction was 4.78±1.88mm (range 1.00 to 8.90mm), and 6.35±2.10mm (range 2.14 to 11.48 mm), respectively. At the time of implant placement, mean changes of initial bone gain were -0.39±0.64mm (range -3.1 to +0.80mm), and -0.49±0.83mm (range –3.7 to +0.4mm), in the vertical and horizontal dimensions, respectively. Reduction of bone volume was significantly higher (P<0.001 for both dimensions) in the exposed sites. At histologic analysis, mesh appeared well osseointegrated, except that in sites where membrane exposure occurred. In all sites, newly formed tissue resulted highly mineralized, well-organized and formed by 35.88% of new lamellar bone, 16.42% of woven bone, 10.88% of osteoid matrix, 14.10% of grafted remnants and 22.72% of medullary spaces. Blood vessels were the 4 % of the tissue.The mean follow-up of implants after loading was 10.6±6.5months (range: 2 to 26months). The survival rate of implants was 100%. PROMs were very positive: 92.5% of patients would have undergone the procedure again. DISCUSSION These three projects have offered, on one side, a relevant opportunity to evaluate the short, medium, and long-term outcomes of both reconstructions with autogenous bone blocks and guided bone regeneration with an innovative, customized, titanium mesh. On the other side, “intrinsic” methodologic limits have appeared during the development of this PhD thesis, such as: o heterogeneity of patient samples and type of defects; o retrospective and prospective type of study; o duration of the observation period; o presence/absence of evaluation of bone gain and with different methods; o different methods used to evaluate bone resorption before implant placement. Despite these limits, results from these three researches offered relevant information as regards the behaviour of the transplanted /regenerated bone as well as the behaviour of peri-implant bone over time. Although the three projects significantly differ among them as regards details in the reconstructive procedures, it must be underlined that many aspects are in common. Therefore, to reduce redundancies it has been decided to write a “unified” discussion which will make it possible a direct comparison of pros, cons, indications and contra-indications of each of them. More in detail, each of the following issues will be discussed reporting and comparing obtained from each study: 1. bone gain; 2. complication rate of the reconstructive procedure; 3. bone resorption before implant placement; 4. peri-implant bone resorption; 5. survival rate of implants and implant-related complications; 6. patient’s satisfaction inquired with a dedicated questionnaire. CONCLUSION Despite the descriptive nature of the first two retrospective longitudinal cohort studies and the variability of the selected patients (including different patients anamnesis, defects locations, defect morphologies, and prosthetic rehabilitations), medium- to long-term results seem to confirm the efficacy of reconstruction of atrophic ridges using autogenous bone blocks taken from both the calvarium and the mandibular ramus covered by a protective layer of bovine bone mineral and stabilized by a collagen membrane. The use of autogenous calvarial grafts may be prefer in case of severely deficient edentulous ridges, when the ramus can offer an insufficient quantity of bone. The low postoperative morbidity, the stability over time of the augmented bone, the high survival rate of implants placed in a prosthetically driven way, leading to very satisfactory prosthetic restorations, confirmed the long-term reliability of these procedures. Preliminary results of the third prospective study, on the other hand, despite the limited number of patients, implants, short follow-up, and the non-negligible incidence of Ti-mesh exposures, seem to demonstrate that CAD-CAM customized Ti-meshes may represent a reliable GBR option for the correction severely atrophic edentulous ridges in terms of vertical bone gain, limited peri-implant bone resorption and survival rate of implants. It is however worth noting that if on one hand it is possible to simplify the reconstructive procedure thanks to the customization of Ti-meshes, on the other hand surgeons have to face the non-negligible incidence of Ti-mesh exposures and the higher complexity of their removal at the time of implant placement. Therefore, studies involving a higher sample of patients and with longer follow-ups are necessary. PROMs seem to validate the use of all the regenerative and reconstructive procedures, with high value of patient’ satisfaction.
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Smith, Christopher David. "Prosthodontic maintenance of implant-supported prostheses." Master's thesis, Faculty of Dentistry, 2001. http://hdl.handle.net/2123/4667.

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This work was digitised and made available on open access by the University of Sydney, Faculty of Dentistry and Sydney eScholarship . It may only be used for the purposes of research and study. Where possible, the Faculty will try to notify the author of this work. If you have any inquiries or issues regarding this work being made available please contact the Sydney eScholarship Repository Coordinator - ses@library.usyd.edu.au
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Fransson, Hannah. "Implant-supported zirconia-based fixed dental prostheses - a literature review." Thesis, Malmö högskola, Odontologiska fakulteten (OD), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-19651.

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Det ökade intresset av keramiska material har främst centrerat kring zirkoniabaserade keramer på sistone. Zirkoniabaserade fastsittande broar är ämne för en pågående diskussion. Det finns några få publicerade studier på ämnet men med varierande kvalitet och det finns ingen sammanställning av implantatstödda zirkoniabaserade broar. Syftet med den här studien är att bedöma tillgängliga studier på tidigare nämnda konstruktion och redogöra för resultat från kliniska studier.På elektroniska databaser söktes artiklar på implantatstödda zirkoniabaserade fastsittande broar. Artiklar som också rörde tandstödda konstruktioner inkluderades i sökningen. Sökningen kompletterades med en manuell referenssök på de utvalda fulltextartiklarna. Sökningen resulterade i 4,253 artiklar. Baserat på förutbestämda kriterier inhämtades 5 fulltext artiklar. En av de studierna skilde inte på tandstödda och implantatstödda grupper i resultatet, därför exkluderaderades den från fortsatta analyser. Tre studier redogjorde för helkäkeskonstruktioner, och majoriteten av de inkluderade konstruktionerna var helkäkeskonstruktioner. Tillräcklig data för uträkning av överlevnad och komplikationsrisk var tillgänglig i 4 studier. Analysen bar baserad på 47 implantatstödda konstruktioner. Slutsatsen av litteraturstudien blir att zirkoniabaserade helkäkeskonstruktioner som är implantatstödda kan övervägas som behandling. Resultaten är dock baserade på få studier med relativt få konstruktioner inkluderade, varför tolkning av resultaten bör göras med försiktighet. Fortsatta studier behövs för att konkludera hur den här typen av konstruktioner håller med tiden.
The increasing interest in ceramic materials has mostly centered on zirconia-based ceramics lately. Zirconia-based fixed dental prostheses (FDPs) is an ongoing subject of discussion. There are a few articles published on the subject but with varying quality and there is no review on implant-supported zirconia-based FDPs to be found. The purpose of this study is to evaluate available studies on zirconia-based implant-supported FDPs, reporting the results from clinical studies.Three electronic databases were searched for studies reporting on zirconia-based FDPs. The electronic search was complemented by a hand-search made from the reference lists of the retrieved full-text articles. The search result yielded 4,253 titles. Based on pre-established criteria, 5 full-text articles were obtained. One study did not separate the results between tooth-supported and implant-supported groups, why it was excluded from further analysis. Three studies reported on cross-arch restorations, and the majority of the FDPs included were cross-arch restorations. Sufficient data for calculation of cumulative survival-and complication-rates was available in 4 studies. Analysis was based on 47 implant-supported FDPs. This review concludes that cross-arch implant-supported zirconia-based FDPs could be considered as a treatment alternative. The results are, however, based on small number of studies with relatively few FDPs included thus interpretation of the results should be made with caution. Further studies are needed to evaluate how these types of constructions stand the test of time.
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Östman, Pär-Olov. "On various protocols for direct loading of implant-supported fixed prostheses /." Göteborg : Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, Göteborg University, 2007. http://hdl.handle.net/2077/7617.

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Fischer, Kerstin. "On immediate/early loading of implant-supported prostheses in the maxilla /." Göteborg : Dept. of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, Göteborg University, 2008. http://hdl.handle.net/2077/9436.

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Gupta, Saurabh. "Maxillary Changes Under Conventional Dentures Opposing Mandibular Implant-Supported Fixed Prostheses." Thesis, Faculty of Dentistry, 1998. http://hdl.handle.net/2123/5100.

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Tang, Ling. "A within-subject comparison of mandibular long-bar and hybrid implant-supported prostheses." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0015/NQ43038.pdf.

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Zardawi, Faraedon M. M. "Characterisation of implant supported soft tissue prostheses produced with 3D colour printing technology." Thesis, University of Sheffield, 2013. http://etheses.whiterose.ac.uk/3299/.

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The numbers of patients needing facial prostheses has increased in the last few decades due to improving cancer survival rates. The many limitations of the handmade prostheses together with rapid expansion of prototyping in all directions, particularly in producing human anatomically accurate parts, have raised the question of how to employ this technology for rapid manufacturing of facial soft tissue prostheses. The idea started to grow and the project was implemented based on CAD/CAM principles – additive manufacturing technology, by employing layered fabrication of facial prostheses from starch powder and a water based binder and infiltrated with a silicone polymer (SPIS). The project aimed to produce a facial prosthesis by using 3D colour printing, which would match the patient’s skin shade and have the desirable mechanical properties, through a relatively low cost process that would be accessible to the global patient community. This was achieved by providing a simple system for data capture, design and reproducible method of manufacture with a clinically acceptable material. The prosthesis produced has several advantages and few limitations when compared to existing products/prostheses made from silicone polymer (SP). The mechanical properties and durability were not as good as those of the SP made prosthesis but they were acceptable, although the ideal properties have yet to be identified. Colour reproduction and colour matching were more than acceptable, although the colour of the SPIS parts was less stable than the SP colour under natural and accelerated weathering conditions. However, it is acknowledged that neither of the two methods used represent the natural life use on patients and the deficiencies demonstrated in terms of mechanical properties and colour instability were partially inherent in the methodology used, as the project was still at the developmental stage and it was not possible to apply real life tests on patients. Moreover, deficiencies in mechanical and optical properties were probably caused by the starch present, which was used as a scaffold for the SP. Furthermore, a suitable retention system utilising existing components was designed and added to the prosthesis. This enabled the prosthesis to be retained by implants with no need for the addition of adhesive. This would also help to prolong the durability and life span of the prosthesis. The capability of the printer to produce skin shades was determined and it was found that all the skin colours measured fall within the range of the 3D colour printer and thereby the printer was able to produce all the colours required. Biocompatibility was also acceptable, with a very low rate of toxicity. However, no material is 100% safe and each material has a certain range of toxicity at certain concentrations. At this stage of the project, it can be confirmed that facial prostheses were successfully manufactured by using 3D colour printing to match the patient’s skin shade, using biocompatible materials and having the desirable mechanical properties. Furthermore, the technology used enabled prostheses to be produced in a shorter time frame and at a lower cost than conventional SP prostheses. They are also very lightweight, easier to use and possibly more comfortable for the patients. Moreover, this technology has the capability of producing multiple prostheses at the time of manufacture at reduced extra cost, whilst the data can be saved and can be utilised/modified for producing further copies in the future without having to going through all the steps involved with handmade prostheses. Based on the mechanical properties and colour measurements the prostheses will have a finite service life and the recommendation is that these prostheses will need replacing every 6 to 12 months, depending on how the patient handles and maintains the prostheses and whether the prosthesis is being used as an interim or definitive prosthesis. This was largely comparable to existing prostheses but without the time and cost implications for replacement. However, it is acknowledged that further investigations and clinical case studies are required to investigate the “real life” effect on the prostheses and to get feedback from the patients in order to make appropriate improvements to the mechanical properties and the durability of the prosthesis.
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Pérez, Delgado José Delfín. "Prótese implanto‒suportada aparafusada vs. cimentada." Master's thesis, [s.n.], 2015. http://hdl.handle.net/10284/5069.

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Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Medicina Dentária
A procura de reabilitações orais cada vez mais próximas dos dentes naturais contribuiu para a evolução das técnicas de reabilitação oral, nomeadamente na área da implantologia, onde atualmente são levantados vários paradigmas, entre os quais se encontra a discussão entre a utilização de próteses cimentadas versus as próteses aparafusadas. Neste trabalho é feita uma revisão da literatura e uma comparação em relação aos dois tipos de retenção de prótese fixas implanto‒suportadas. Para isso foram analisados vários fatores com influência no sucesso ou insucesso dos dois tipos de restaurações como: estética, oclusão, resistência, retenção, biomecânica, reversibilidade, ajuste passivo, efeitos biológicos, provisionalização, função imediata e hábitos parafuncionais. A resposta a esta discussão só é possível de ser obtida após uma exaustiva avaliação de cada caso de reabilitação, ponderando as vantagens e desvantagens de cada técnica, não havendo uma resposta geral para a questão de qual o melhor tipo de retenção. The search for oral rehabilitations more and more close from the natural teeth had contributed for the evolution of the oral rehabilitation techniques, namely in the implantology field, where nowadays are lifted several paradigms, among which is the discussion among the use of cement‒retained or screw‒retained prostheses. In this work it is done a literature review and a comparison in relation to the both types of implant‒supported fixed prostheses retention.For that propose several factors with influence on the success or failure of the both type of restorations were analyzed, such as: aesthetics, occlusion, resistance, retention, biomechanics, retrievability, passivity, biological effects, provisionals, immediate function and parafunctional activity. The answer to this discussion it’s only obtained after an exhaustive evaluation of each rehabilitation case, considering the advantages and disadvantages of each technique, without having a general answer for the question which is the best type of retention.
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Butignon, Luís Eduardo. "Influência do tipo de pilar de resistência mecânica pré-ciclagem, quantidade de toque retido e desajuste vertical pré e pós-ciclagem, com análise estrutural em MEV /." Araraquara : [s.n.], 2011. http://hdl.handle.net/11449/105498.

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Orientador: João Neudenir Arioli Filho
Banca: Rafael Leonardo Xediek Consani
Banca: Luiz Fernando Pegoraro
Banca: Ana Carolina Pero
Banca: Regnata Garcia Fonseca
Resumo: Problemática: De ocorrência clínica comum, o afrouxamento dos parafusos que compõe uma prótese sobre implante é uma complicação que traz transtornos tanto para o profissional quanto para o paciente. Entre os fatores que interferem na estabilidade da união parafusada destaca-se a pré-carga gerada durante o torque do parafuso, as formas como as forças se dissipam através do conjunto implante/pilar/parafuso e as características dos componentes utilizados. Proposição: O objetivo deste estudo foi analisar comparativamente três tipos de pilares sobre implantes, quanto a resistência mecânica previamente ao ensaio de carga cíclica; a porcentagem de torque retido na união parafusada e os níveis de desajuste vertical entre o pilar e o implante antes e após ciclagem; e alterações estruturais na base de assentamento dos pilares através de microscopia eletrônica de varredura (MEV). Material e método: Quarenta e cinco implantes, com conexão tipo hexágono externo foram incluídos em cilindros de PVC utilizando-se resina epóxica com módulo de elasticidade semelhante à estrutura óssea. Os grupos foram estabelecidos de acordo com o tipo de pilar utilizado (n=15): Titânio (pré-fabricado), Ouro (com cinta metálica pré-fabricada e sobre fundido) e Zircônia (pré-fabricado). Cinco pilares de cada grupo foram submetidos a teste de resistência estática para estabelecimento do valor da força a ser utilizada no ensaio de carga cíclica. Os outros 10 pilares de cada grupo foram fixados sobre os respectivos implantes através de parafuso de titânio, sob torque e retorque de 32 Ncm (pilares metálicos) e 20 Ncm (pilar de zircônia). Os corpos de prova foram submetidos à aferição do torque retido (précarga) e dos níveis de desajuste vertical... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Purpose: The aim of this study was to evaluate comparatively three type of abutment in regard to mechanical resistance before cyclic loading, the maintenance of the applied torque and vertical misfit in abutment/implant interface before and after cyclic loading, and damage surface by SEM. Material and Method: Forty five external hex implants were embedded in an epoxy resin and received your respective abutments, randomly divided in three experimental groups (n=15): (A) machined titanium (Ti) abutments; (B) premachined gold (Au) abutments and (C) machined zirconia (ZrO2) abutments. For all groups, only one type of screw was used. The abutment screws were tightened according to the manufacture's recommended torque. Initially, a static bending test was performed using 5 specimens of each group to determine the load applied in the cyclic loading test. Thus, 10 specimens of each group were used to measure the reverse torque value (preload) of the abutment screw and vertical gap between the abutments and implant, before and after loading. The tests were performed according to ISO norm 14801. A cyclic loading (0,5 x 106 cycles; 15 Hz) between 11 - 211 N was applied at an angle of 30 degrees to the long axis of the implants. Group means were compared using ANOVA and Tukey test. Result: The mechanical strength test showed that the UFL mean for Au abutments was significantly higher than the mean of the other abutments (p<0.001). The analysis of reverse torque (preload) before cyclic loading showed no significant differences among abutment groups. After cyclic loading the lowest decrease in preload was observed in group Ti, whereas the highest was observed in group ZrO2, with significant differences between them. The group Au showed an intermediate decrease, with no significant difference to the other groups. In relation to the vertical misfit... (Complete abstract click electronic access below)
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Books on the topic "Implant-supported prosthesi"

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Pedro, Torroba Laviña, ed. Implant-supported prostheses: Occlusion, clinical cases, and laboratory procedures. Chicago: Quintessence Pub., 1995.

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Wyatt, Christopher Charles Lynam. Treatment outcomes of patients with implant supported fixed partial prostheses. [Toronto: University of Toronto, Faculty of Dentistry], 1996.

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1938-, Zarb George A., Bolender Charles L, and Eckert Steven E, eds. Prosthodontic treatment for edentulous patients: Complete dentures and implant-supported prostheses. St. Louis: Mosby, 2004.

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Advanced immediate loading. Hanover Park, IL: Quintessence Pub. Co., 2012.

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Clinical and laboratory manual of implant overdentures. Ames, Iowa: Blackwell Munksgaard, 2007.

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Avivi-Arber, Limor. Prosthodontic replacement of the missing single tooth with implant-supported prostheses ad modum Branemark. [Toronto: Faculty of Dentistry, University of Toronto], 1994.

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Implant treatment planning for the edentulous patient: A graftless approach to immediate loading. St. Louis, Mo: Mosby/Elsevier, 2011.

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Wismeijer, D. Loading protocols in implant dentistry: Edentulous patients. Berlin: Quintessence Publishing, 2010.

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Pascetta, Romeo. Atlas of dental rehabilitation techniques. Chicago: Quintessence Publishing, 2012.

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Tealdo, Tiziano. Columbus bridge protocol: Surgical and prosthetic guidelines for an immediately loaded, implant-supported prothesis in the endentulous maxilla / Tiziano Tealdo, Marco Bevilacqua, Paolo Pera ; translation by Genni Anna Genobbio. Milan: Quintessenza Edizioni, 2012.

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Book chapters on the topic "Implant-supported prosthesi"

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Nader, Samer Abi, and Meng François Seng. "Case Presentation: Implant-Supported Removable Mandibular Prostheses." In Mandibular Implant Prostheses, 221–34. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-71181-2_13.

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Nader, Samer Abi, and Samer Mesmar. "Case Presentation: Implant-Supported Fixed Mandibular Prostheses." In Mandibular Implant Prostheses, 235–47. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-71181-2_14.

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Bongard, Steven, and David Powell. "Prosthetic Complications with Immediately Loaded, Full-Arch, Fixed Implant-Supported Prostheses." In BDJ Clinician’s Guides, 321–32. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-65858-2_14.

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Batista, R., A. Moreira, M. Sampaio-Fernandes, P. Vaz, J. C. Reis Campos, and M. H. Figueiral. "Implant-tooth fixed supported prosthesis: A review." In Biodental Engineering V, 279–83. London, UK; Boca Raton, FL: Taylor & Francis Group, [2019] |: CRC Press, 2019. http://dx.doi.org/10.1201/9780429265297-54.

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Jahangiri, Leila, Marjan Moghadam, Mijin Choi, and Michael Ferguson. "Full Mouth Rehabilitation-Implant-Supported Prostheses I." In Clinical Cases in Prosthodontics, 185–90. Ames, Iowa USA: Blackwell Publishing Ltd., 2013. http://dx.doi.org/10.1002/9781118786864.ch28.

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Jahangiri, Leila, Marjan Moghadam, Mijin Choi, and Michael Ferguson. "Full Mouth Rehabilitation-Implant-Supported Prostheses II." In Clinical Cases in Prosthodontics, 191–97. Ames, Iowa USA: Blackwell Publishing Ltd., 2013. http://dx.doi.org/10.1002/9781118786864.ch29.

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Jahangiri, Leila, Marjan Moghadam, Mijin Choi, and Michael Ferguson. "Full Mouth Rehabilitation-Implant-Supported, Screw-Retained Prostheses." In Clinical Cases in Prosthodontics, 199–203. Ames, Iowa USA: Blackwell Publishing Ltd., 2013. http://dx.doi.org/10.1002/9781118786864.ch30.

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Jahangiri, Leila, Marjan Moghadam, Mijin Choi, and Michael Ferguson. "Full Mouth Rehabilitation-Implant-Supported, Cementable Fixed Prostheses." In Clinical Cases in Prosthodontics, 205–10. Ames, Iowa USA: Blackwell Publishing Ltd., 2013. http://dx.doi.org/10.1002/9781118786864.ch31.

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De Santis, Giorgio, and Marta Starnoni. "Atrophic Maxilla with Fibula Flap and Implant-Supported Prosthesis." In Clinical Scenarios in Reconstructive Microsurgery, 171–81. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-23706-6_22.

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De Santis, Giorgio, and Marta Starnoni. "Atrophic Maxilla with Fibula Flap and Implant-Supported Prosthesis." In Clinical Scenarios in Reconstructive Microsurgery, 1–11. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-319-94191-2_22-2.

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Conference papers on the topic "Implant-supported prosthesi"

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Kasra, Mehran, and James D. Anderson. "Framework Design for an Orofacial Implant-Supported Prosthesis." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0335.

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Abstract Loss of the entire midface leaves few options available for support of the dentition. Total loss of the maxilla bilaterally means that none of the traditional support areas are even partially useful. Surgical reconstruction of the midface is aggressive, and yet problems of support and retention for a dental prosthesis, as well as the facial prosthesis, remain. Osseointegrated implants can provide support and retention utilizing the remaining bones, but the distribution of occlusal forces becomes a concern, given their unfavourable location relative to the opposing dentition. Considerable attention has been given to framework design for intraoral implant-supported prostheses (1) but designs for extraoral framework typically have not been engineered with a view to controlling forces on the individual implants. This work describes the design procedure of such an extraoral framework which was fabricated for an individual. To minimize the possibility of unintentional overloads, consideration of the forces on each of the implants was prominent in design planning.
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Hasan, Md Abu, and Panos S. Shiakolas. "3D Finite Element Stress Analysis of an Implant Supported Overdenture Under Bruxism and Lingualized Loading Conditions." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-51688.

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Bruxism is a nonfunctional motor activity that is characterized by grinding and clenching of the teeth. It has been postulated that bruxism causes excessive occlusal load on the dental implant and its superstructures leading to biological and biomechanical complications. While many researchers suggest that grinding/clenching causes early implant complications and accelerated bone loss, others indicate that the long term effects are still unclear. The goal of this study is to analyze the effect of bruxism loading condition on the stress distribution of an implant supported overdenture (ISO) using finite element analysis (FEA) and compare the results with one of the most functionally efficient occlusion schemes in the clinical dentistry — lingualized occlusion. A high fidelity solid model of a mandibular denture encompassing lingual and buccal cusps, mesial and distal fossae supported by four implants and a connecting titanium prosthetic bar, resting on alveolar bone were modeled in SolidWorks 2013 following proper clinical guidelines and imported to ANSYS 15.0 for stress analysis. The results of the study demonstrate that the stress distribution in the implant prostheses and surrounding bone is significantly affected due to bruxism as compared to the lingualized loading. While the location of the maximum stress concentration was the same (neck of the posterior implants) for both loading conditions, there was an increase of approximately 115% von-Mises stress for bruxism loading condition as compared to the lingualized occlusion. The maximum principal stress in the cortical bone surpassed the ultimate tensile strength limit of the jaw bone implying possibility of bone resorption in the peri-implant area.
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Wen, Xiaoqin, Jianhao Liu, Zhixin Liu, and Lin Wang. "The Loosening Detection System of Prosthetic Screw in Implant Supported Denture." In 2022 41st Chinese Control Conference (CCC). IEEE, 2022. http://dx.doi.org/10.23919/ccc55666.2022.9902659.

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Ahmadian, Mohammad Taghi, Keikhosrow Firoozbakhsh, Golsa Ghanati, and Parsa Ghanati. "The Nonlinear Finite Element Analysis of a Novel Dental Implant With an Interposed Internal Layer Imitating Periodontal Ligament’s Function." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-64841.

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Osseointegrated dental implants are deficient in natural periodontal ligaments. It may therefore, disrupts the natural function of implant and leads to excessive stress and strain in jaw bone. Our new proposed implant has the nonlinear internal component which imitates periodontal ligaments function. A nonlinear finite element analysis developed to investigate the efficiency of utilizing this nonlinear internal layer for three conditions of bone implant interface conditions under vertical and horizontal loading conditions. Our results so far indicate that the use of a class of material exhibiting incompressible hyperelastic behaviour as a internal layer can reduce the peak stress deduced from different loads. The mobility of implant supported prosthesis is similar to that of natural tooth and micromotion at the bone-implant interface is decreased for both delayed and immediately loading treatment.
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Prabhu, Ajit A., and John B. Brunski. "An Overload Failure of a Dental Prosthesis: A 3D Finite Element Nonlinear Contact Analysis." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0268.

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Abstract Dental implants are extensively used to treat fully and partially edentulous patients. However, the success rates of clinical cases involving partially edentulous patients is lower than the fully edentulous cases.1 In one partially edentulous case that we have been examining, a prosthesis was supported by two screw-shaped, 3.75mm diameter Branemark implants as shown in Figure 1. The implants were separated by 7mm and were located in the molar region of the mandible. After the insertion of the implants and a healing period of 6 months, the prosthesis was put into function. After 3 months of loading, there was significant bone loss near the mesial implant which eventually lead to its mechanical failure. We have previously made a biomechanical analysis of this failed implant case using analytical2 and 3D finite element (FE) analysis.3 In the previous 3D FE study, the interface between the implant and the bone was assumed to be fully bonded. In this current investigation, the assumption of bonding vs no bonding is further investigated using 3D contact analysis. Surface to surface contact is a phenomenon that occurs between two contacting surfaces which are close to each other and might be in contact or separated depending on the interfacial stresses between the two surfaces. In this study the contact analysis is used to capture the bonding and non bonding between the bone and the implant interface.
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Sannino, G., E. Cianca, M. Coletta, M. Ruggieri, D. Sbardella, and R. Prasad. "Integrated wireless and sensing technology for dentistry: An early warning system for implant supported prostheses." In 2015 IEEE International Symposium on Systems Engineering (ISSE). IEEE, 2015. http://dx.doi.org/10.1109/syseng.2015.7302781.

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Corrêa, Cássia B., Nuno V. Ramos, Jaime Monteiro, Luis G. Vaz, and Mario A. P. Vaz. "Analysis of mechanical behavior of implant-supported prostheses in the anterior maxilla: analysis by speckle pattern interferometry." In SPECKLE 2012: V International Conference on Speckle Metrology, edited by Ángel F. Doval and Cristina Trillo. SPIE, 2012. http://dx.doi.org/10.1117/12.978232.

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Tuan, Rocky S. "Functional Analysis of Bone-Biomaterial Interface." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-2675.

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Abstract Proper function and long-term stability of orthopaedic implants depend on the intimate association between bone cells and the implant biomaterial, a process known as osseointegration. Understanding the processes responsible for the establishment and maintenance of a functional bone-biomaterial interface and how these processes may be enhanced is crucial to the rational design and optimization of prosthetic devices. We have utilized cellular, molecular, and high-resolution imaging approaches to analyze the mechanistic basis of bone-biomaterial interactions. Specifically, we have characterized the initial adhesion of osteoblasts in terms of kinetics and relationship to the surface topography and chemistry of the biomaterials, particularly the cobalt-chrome and titanium alloys commonly used to fabricate orthopaedic prostheses. Results from these studies indicate that the long-term performance of osteoblasts adherent to biomaterials is crucially dependent on the characteristics of the initial adhesion step. Furthermore, osteoactive factors such as members of the transforming growth factor-β superfamily, including TGF-β1 and BMP-2, significantly enhance osteoblast cell adhesion. The molecular components responsible for the adhesion process include extracellular matrix proteins (e.g. fibronectin and collagen type I) and their cognate membrane receptors, the integrins. Our recent studies reveal that specific downstream, intracellular signaling events are also activated as a result of osteoblast adhesion, and that these signaling events are coupled to signal transduction mechanisms mediating growth factor activity. These events in combination regulate the continued expression and maintenance of the osteoblastic phenotype of the adherent cells, resulting in matrix maturation and mineralization, hallmarks of the bony tissue. Our current efforts focus on defining the target molecular pathways responsible for bone cell functioning on biomaterials, and the identification of critical biological and material parameters to optimize long-term osteoblast function and interaction with orthopaedically relevant biomaterials. The information gathered from these studies should provide a rational basis for the design of optimal implant biomaterials. (Supported in part by the NIH and the Annenberg Foundation)
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Reports on the topic "Implant-supported prosthesi"

1

Traczinski, Adriana, Felipe Carvalho de Macêdo, Ivete Aparecida de Mattias Sartori, and José Mauro Granjeiro. Advantages and limitations related to the rehabilitation of edentulous jaw with implant supported prostheses made of monolithic zirconia: systematic review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, January 2022. http://dx.doi.org/10.37766/inplasy2022.1.0111.

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Review question / Objective: P: edentulous maxillary arch; I: Full arch rehabilitation with monolithic zirconia or veneered prosthesis retained by implants; C: none; O: Biomechanical complications (framework fracture, chipping, complications, advantages, limitations); S: RCT, nor randomized clinical trials. Condition being studied: Biomechanical complications resulting from the oral rehabilitation of edentulous maxillary arch through the use of implant-supported full arc prostheses made of monolithic zirconia. Eligibility criteria: Total edentulous maxillary arch patients; rehabilitated with implants; monolithic zirconia prostheses with full contour or vestibular face with application of feldspathic ceramics or full veneered or with segmented zirconia crowns; the condition of the opposing arch must be described; the number of maxillary implants that support the prosthesis must be a minimum of 4 implants.
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