Дисертації з теми "Dentistry; implant dentistry; dental implant"
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Hjalmarsson, Lars. "On cobalt-chrome frameworks in implant dentistry /." Göteborg : Department of Dentistry/Dental Materials Science, Institute of Odontology, 2009. http://hdl.handle.net/2077/21179.
Повний текст джерелаO'Sullivan, Dominic. "The effect of implant geometry upon the primary stability of dental implants." Thesis, University of Bristol, 2001. http://hdl.handle.net/1983/339010c1-63ee-4eb9-b03c-b3a2b9b89dbf.
Повний текст джерелаWanat, Thomas Nelson III. "Risk factors for dental implant failure| Smoking, periodontal disease and previously failed implant sites." Thesis, University of Colorado at Denver, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10130885.
Повний текст джерелаBackground: The literature indicates a reduced survival rate for dental implants placed at previously failed sites, smokers, and patients with a history of periodontal disease. The aim of this study is to review the available literature reporting on the success and/or survival of rough surface implants placed at previously failed sites, in smokers, and in periodontally compromised patients. An attempt was made to systematically review the literature and calculate an overall weighted mean survival rate for rough surface implants in each of the above three scenarios.
Methods: An electronic literature search (MEDLINE-PubMed) was performed and references hand-searched for human studies addressing the success/survival of implants placed at previously failed sites, in smokers and in patients with a history of chronic periodontal disease. The overall weighted mean survival rates and 95% confidence interval were then calculated. Results: Six retrospective studies reporting on implants placed at previously failed sites were included with total of 343 second attempts and 31 third attempts at implant placement at failed sites in 330 patients. The weighted mean survival rates for the second and third attempts at implant placement in a previously failed site were calculated to be 88.05% and 74.19%, respectively. A total of 14,395 implants were included in smoking analysis. Of these, 10,403 implants were placed in non-smokers with 250 failures and 3,992 placed in smokers, with 205 failures. The calculated overall weighted mean implant-level survival was 97.67% in non-smokers and 95.03% for in smokers. Lastly, six studies reported on 591 implants placed in periodontally compromised patients with a total of 15 failures and 198 implants placed in periodontally healthy patients with just one failure. The overall weighted mean implant survival rate was calculated to be 97.48% in periodontally compromised patients compared to 99.49% for periodontally healthy patients.
Conclusions: Of the three risk factors evaluated in this review, rough surface implants placed in previously failed sites presents the highest risk for implant failure. Rough surface implant survival declines significantly for each additional attempt at implant placement at a previously failed site, with weighted mean survival rates of 88.05% and 74.19% for the second and third attempts, respectively. Although more favorable than previously used implant designs, smokers continue to experience lower survival rates compared to non-smokers, with overall weighted mean implant survival rates of 95.03% and 97.67%, respectively. A similar finding was found for implants placed in patients with a history of chronic periodontitis. The calculated weighted mean survival rate was 99.49% for periodontally healthy patients compared to 97.48% for periodontally compromised patients.
Isaksson, Anders, and Michael Graham. "RoDent : Robotic Dentistry : Computer aided dental implant positioning system." Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-1559.
Повний текст джерелаA study was carried in conjunction with the Orthodontic department at Halmstad General Hospital in Sweden to investigate the possibility of reducing cost and manufacture time of dental implant drill guides.
The current system involves sending a digital image in STL format to the Materialise factory in Belgium where information of the position of dental implants is translated onto a moulded mouthpiece. Drill guides are placed in the mouth piece which is then returned to the surgeon. The mouthpiece complete with drill guides is then placed in the patients mouth and used as a guide for the implant drill holes. The cost of 10000 sek and a turnaround time of 2 weeks gave rise to the need for a faster and cheaper solution.
A new mouthpiece was designed comprising of a solid cube which could be clearly seen on the x-ray. Linearisation of the cube faces is used to find a reference point from which to drive a 5 axis drilling platform. The mouthpiece is placed in the drill platform which is driven by stepper motors which in turn are controlled by a microcontroller. Co-ordinates are entered via a PC interface. The PC software then translates these co-ordinates into motor steps which are sent to the microcontroller. The drill platform then positions the mouthpiece in order to drill guide holes for the dental implants.
The study showed that the machine design gave an acceptable degree of accuracy and repeatability. Further enhancements could be made by automating the detection of the cube using image analysis techniques. The study was also limited by the lack of graphical and geometrical data concerning the position of the implant. For the purpose of this study the co-ordinates for the implants guides is entered by hand.
It was concluded that further software and hardware enhancement would be needed before the application could be developed commercially.
Al-Noaman, Ahmed. "Novel bioactive glass coating for dental implant." Thesis, Queen Mary, University of London, 2012. http://qmro.qmul.ac.uk/xmlui/handle/123456789/3342.
Повний текст джерелаAlzoubi, Fawaz. "Pre-doctoral implant dentistry education: Trends, issues, and perspectives." Scholarly Commons, 2015. https://scholarlycommons.pacific.edu/uop_etds/46.
Повний текст джерелаAbuhammoud, Salahaldeen Mohammad. "Knowledge and practice of implant dentistry among University of Iowa College of Dentistry alumni." Thesis, University of Iowa, 2018. https://ir.uiowa.edu/etd/3235.
Повний текст джерелаHarrison, Kevin Charles. "Implant Placement in Conjunction with the Ridge Split Technique." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1306864728.
Повний текст джерелаNarendrakumar, Krunal. "Developing methods to prevent or treat microbial colonisation of titanium dental implant surfaces." Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/5677/.
Повний текст джерелаAL-Meraikhi, Hadi Nasser. "In Vitro Fit and Distortion of CAD/CAM-Fabricated Implant-Fixed Titanium and Zirconia Complete Dental Prostheses Frameworks." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1449063197.
Повний текст джерелаSitbon, Yves Alain Dietrich. "Epithelial cells attachment on five different dental implant abutment surface candidates." Thesis, University of Iowa, 2009. https://ir.uiowa.edu/etd/266.
Повний текст джерелаFakhravar, Behnam. "The Effect of Probing And Scaling Instrumentation On Implant Restorative Abutments." Master's thesis, Temple University Libraries, 2011. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/148112.
Повний текст джерелаM.S.
Introduction: Dental implant abutments can be exposed to a variety of oral prophylaxis procedures. Instrumentation of restored dental implants could subject the apical collar of the implant restorative abutment to surface scratching. Scratched surfaces may pose a threat to the integrity of the soft-tissue seal around the apical portion of the abutment which eventually may compromise the alveolar support of the implant. The aim of this study was to objectively measure surface roughness on the apical collar of metal implant abutments induced by probing and scaling instruments. Materials and Methods: 14 standard transmucosal 3 in 1, 4.5 mm diameter abutments made of titanium alloy (BioHorizons, Atlanta, GA) and 4 instruments, UNC-15 metal probe, Periowise plastic probe, McCall SM 17/18 metal scaler and universal plastic scaler were used to conduct the study. 4 abutments were used for non-treated measures and 10 abutments were used for instrumentation measures. All abutments were divided into four sections. Abutments used for instrumentation were treated with one of the four indicated instruments, one instrument per each section. Surface roughness of untreated and treated surfaces was assessed using a contact profilometer. Analysis of variance (ANOVA) was used to compare surface roughness between untreated and treated surfaces. Results: ANOVA showed significant differences in surface roughness between the treated and untreated surfaces (p< 0.0001). Add hoc analysis using Tukey-Kramer HSD test showed no statistical differences between untreated measures and metal probe measures (p>0.05). On the other hand, statistical differences were noted between untreated measures with plastic probe measures (p= 0.05), plastic scaler measures (p=0.05) and metal scaler measures (p=0.05). The metal scaler measures were higher than plastic probe measures (p=0.05), and plastic scaler measures (p=0.05). Conclusions: Probing around implant abutments with a metal probe seems to have no relevant effect on abutment surfaces. In contrast, instrumentation with scalers (both metal and plastic) and plastic probe may cause adverse surface changes. It is not known if these changes have clinical relevance.
Temple University--Theses
Scherer, Michael David. "Comparison of Retention and Stability of Implant-Retained Overdentures Based Upon Implant Location, Number, and Distribution." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1336664206.
Повний текст джерелаYoussef, Sarah Jane. "Implant Maintenance Curriculum Among U.S. Dental Hygiene Programs." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1586814568072554.
Повний текст джерелаRobitaille, Nicolas. "METAGENOMIC ANALYSIS OF THE DEVELOPING PERI-IMPLANT SULCUS." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1434667746.
Повний текст джерелаHowell, Kent Jon. "Accuracy of the Biomet 3i Encode® Robocast™ Technology Versus Conventional Implant Impression Techniques." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1306772544.
Повний текст джерелаGil-Escalante, Mariana. "Comparison of Azithromycin and Amoxicillin for Prophylaxis at Dental Implant Placement: A Randomized Pilot Study of Bioavailability and Anti-inflammatory Effects." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1371125943.
Повний текст джерелаMizumoto, Ryan M. "The accuracy of different digital impression techniques and scan bodies for complete-arch implant-supported reconstructions." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1530005688900126.
Повний текст джерелаJohnston, Geoffrey R. "Comparison of Vertical Misfit Between Pattern Resin and Welded Titanium Used to Fabricate Complete-Arch Implant Verification Jigs." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1499779684903305.
Повний текст джерелаCheng, Xiaoli. "A 3D approach in quantification of the alveolar bone changes after dental implant placement based on CBCT images." Thesis, Queen Mary, University of London, 2017. http://qmro.qmul.ac.uk/xmlui/handle/123456789/24561.
Повний текст джерелаTaketa, Rofaida, and Ivona Kovacevic. "A Retrospective Evaluation of Surgical Treatment of Peri-implantitis." Thesis, Malmö universitet, Odontologiska fakulteten (OD), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-42461.
Повний текст джерелаSyfte: Retrospektivt undersöka resultatet av kirurgisk peri-implantitbehandling med hänsyn till potentiellt relevanta parametrar. Material och metod: Alla patienter som kirurgiskt behandlades för peri-implantit under tidsperioden 2013-2019 av en enda specialist med minst nio månaders uppföljning beaktades här. Patient-, protes- och implantatrelaterade data samlades in retrospektivt från journaler och tillgängliga röntgenbilder pre- och postoperativt. Kirurgiska ingrepp delades in i open flap debridement (OFD), resektiv, regenerativ och kombinerad behandling. Behandlingsresultatet definierades som: good (PPD≤5mm+ingen BoP); acceptable (PPD>5mm utan BoP, eller BoP+PPD≤5mm); bad (PPD>5mm+BoP och/eller suppuration); och failure (explantering eller re-operation). Beskrivande statistik, chi-square eller Fisher’s exact test utfördes för att bedöma potentiella prediktorers påverkan på resultatet. För ”lyckat” kombinerades resultaten good och acceptable, medan för ”misslyckat” kombinerades resultaten bad och failure. Resultat: Trettiosju patienter och 69 implantat med en uppföljning på 9 till 63 månader uppfyllde inklusionskriterierna. Sammantaget visade 71% av de behandlade implantaten ett bra resultat och ytterligare 13% ett acceptabelt resultat, dvs. i 84% av fallen uppnåddes ett lyckat resultat. Regenerativ behandling hade den bästa lyckandefrekvensen (87%) följt av resektiv (84%), OFD (83%) och kombinerad behandling (83%). En av prediktorerna, mer specifikt rökning, påverkade lyckandefrekvensen negativt med >10%. Statistisk analys misslyckades dock med att bevisa statistisk signifikans. Slutsats: Baserat på denna retrospektiva analys av ett relativt begränsat antal implantat lyckades kirurgisk behandling av peri-implantit i 84% av fallen. För att definiera riskfaktorer som påverkar behandlingsresultatet krävs en större provstorlek. Resultaten visade ingen statistisk signifikans.
Kandaswamy, Eswar. "Biologic Mediators And Titanium Release Associated With Treatment Of Peri-Implant Diseases - A 6 Months Follow-Up Study." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1595432512854474.
Повний текст джерелаVerma, Rajiv, and n/a. "Clinical outcomes of dental implant treatment provided at the School of Dentistry, University of Otago from 1989 to 2005." University of Otago. School of Dentistry, 2008. http://adt.otago.ac.nz./public/adt-NZDU20081219.145402.
Повний текст джерелаJohnson, Trenton. "Effect of guided bone regeneration with rhBMP-2 on bone quality surrounding dental implants." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu152147382891412.
Повний текст джерелаSalaita, Louai Ghaleb. "Strain analysis and fracture strength of different abutments for cement-retained crowns on an internal hexagon implant." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1404820351.
Повний текст джерелаSalles, Angelo Emilio Barroso de. "Analise fotoelastica da distribuição de tensões em dois sistemas de proteses mandibulares sobre implantes : barra distal e solda a laser." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288262.
Повний текст джерелаDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
Made available in DSpace on 2018-08-12T16:14:35Z (GMT). No. of bitstreams: 1 Salles_AngeloEmilioBarrosode_M.pdf: 10746117 bytes, checksum: 7a6d08147fb33c8d235cc7df5f8be032 (MD5) Previous issue date: 2008
Resumo: Este estudo avaliou por meio de análise fotoelástica, a distribuição in vitro das tensões geradas na interface "osso/implante" em próteses mandibulares, tipo protocolo, comparando duas técnicas de confecção: Solda a laser e Barra Distal (Neodent, Curitiba - PR) onde não se utiliza infra-estrutura metálica. Foram confeccionadas duas próteses com design similares (uma para cada técnica), sobre uma matriz metálica simulando um arco mandibular edêntulo, onde foram instaladas cinco réplicas de implantes de corpo único (GT- Neodent, Curitiba - PR). A partir de um molde de silicone de duplicação (Silibor - Clássico Artigos Odontológicos Ltda.) foi confeccionado um modelo em resina fotoelástica (Araldite GY279BR - Araltec Produtos Químicos Ltda. Guarulhos - SP) com cinco implantes GT (Neodent, Curitiba - PR) incorporados. Após a instalação de cada prótese sobre o modelo fotoelástico, utilizando 10 N/cm para aperto dos parafusos, foi realizada análise fotoelástica. Em seguida, foi aplicada carga oclusal de 100 N em toda extensão de cada prótese, com auxílio de uma placa metálica posicionada sobre a face oclusal dos dentes, e então realizada nova análise das tensões. Estas análises foram executadas com o auxílio de um polariscópio circular acoplado a uma máquina fotográfica digital (H1 - Sony, Japão), que permitiu a visualização das franjas e registrou através de fotografias digitais o comportamento das mesmas ao redor dos implantes no modelo fotoelástico. De acordo com os resultados, concluiu-se que a técnica utilizando Barra Distal distribuiu melhor, e transmitiu com menos intensidade, após o aperto dos parafusos, as tensões geradas na interface "osso/implantes" do que a técnica utilizando solda a laser. No entanto, ocorreu o inverso após o carregamento oclusal.
Abstract: The aim of this study was to evaluate through photoelastic analysis, the in vitro distribution of the generated tensions in the "bone/ implant" interface in mandibular prostheses, protocol type, comparing two different working techniques: the idealized by Branemark and Distal Bar (Neodent, Curitiba - PR) where framework is not used. Two similar prostheses were made (one for each technique), on a metal matrix simulating an edentulous mandible, where five replications of single body implant were installed (GT-Neodent, Curitiba - PR). From a silicone mold for duplication (Silibor - Classico Artigos Odontológicos Ltda.), a model in photoelastic resin was created (Araldite GY279BR - Araltec Produtos Quimicos Ltda., Guarulhos - SP) with five GT implants (Neodent, Curitiba - PR) embedded. After the installation of each prosthesis on the photoelastic model, using 10 N/cm for tightening the screws, a photoelastic analysis was performed. Then a 100 N occlusion load was applied throughout each prosthesis extension with the help of a metal plate positioned on the occlusal face of the teeth, and then a new analysis of the tensions was conducted. These analyses were performed with the help of a circular polariscope attached to a digital camera (H1 - Sony, Japan), which allowed the visualization of the fringes and recorded by digital photos the behaviour of the implants. According to the results, it was concluded that the Distal Bar technique distributed better, and transmitted with less intensity, after the tightening of the screws, the generated tensions to the system "bone/implants" than the laser welding. However, it happened the opposite after the occlusal load.
Mestrado
Protese Dental
Mestre em Clínica Odontológica
Alsaery, Amani Saleh. "Strain and load-to-fracture comparison of CAD-CAM dental implant crown materials under loading." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1483730173077362.
Повний текст джерелаNeergaard-Richardt, Tobias, and Teemu Väkiparta. "Immediate Loaded Implants Placed in Fresh Extraction Sockets - Effect on Marginal Bone." Thesis, Umeå universitet, Institutionen för odontologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-142304.
Повний текст джерелаFerreira, Jonathan. "Desenvolvimento de plataforma elíptica osseointegrável para implante dentário, guias de perfuração e técnica cirúrgica de implantação - estudo em fêmures de cães." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/10/10137/tde-17042009-152113/.
Повний текст джерелаThe aim of this study was to develop a dental implant for use in dogs with similar format to the biradicular teeth of these animals and surgical technique for its implantation, with features that allow the osseointegration. The implant is composed of three parts, two conic threaded implants united to a conic elliptical platform by screws and implanted below the bone level. 20 femurs of dogs were used for the development of this project and the implants were placed in the epiphyseal region of the bones. The drilling was guided by three types of surgical guides made of aluminum consistent with dimensions of the implants and platforms. The osteotomy was evaluated with direct measurements and the adaptation of the implant was evaluated radiographically. The implant developed is very similar to the root portion of the biradicular teeth of dogs, the surgical technique of drilling and osteotomy have been efficient and radiographic evaluation showed good adaptation between the parts and parallelism between the threaded implants. These findings suggest that by following this approach, with the platform constructed in titanium, this type of implant should be osseointegrated to the adjacent bone.
Shah, Karnik. "Retrieval of Cemented Monolithic Zirconia Single unit Implant Restoration Using Er:YSGG Laser: A Novel Non Sectionalized Separation Technique." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1469211037.
Повний текст джерелаKofina, Vrisiis. "Blood Perfusion and Early Wound Healing Following Implant Placement: A Comparison Between Grafted and Non-Grafted Sites." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1529679829743409.
Повний текст джерелаRathi, Nakul H. "Comparing the Accuracy of Intra-Oral Scanners for Implant Level Impressions Using Different Scanable Abutments." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1407200647.
Повний текст джерелаIsik, Alexandra, and Tai Truong. "Efficacy of air-polishing in disinfecting implant surfaces. A laboratory study simulating a non-surgical approach." Thesis, Malmö universitet, Odontologiska fakulteten (OD), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-42547.
Повний текст джерелаSyfte: Syftet med denna laborativa studie är att utvärdera olika parametrar som potentiellt kan påverka effekten av air-polishing maskiner vid icke-kirurgisk rengöring av implantat för behandling av peri-implantit. Material och metod: Sammanlagt, 56 turned (maskin bearbetade) och 56 moderately rough (måttlig ytråhet) implantat var belagda med en biofilmimitation. Implantaten var placerade i en specialgjord resin-modell som simulerar en 30° bendefektmodell med 3- respektive 5 mm defektdjup; mjukvävnaden simulerades med ballistiskt gelatin. Varje implantat rengjordes i totalt 30 eller 90 sekunder (6 sidor per implantat; 5 eller 15 sekunder per sida) med en av två air-polishing maskiner (W&H och EMS). Implantaten fotograferades sedan ur tre olika vinklar för att digitalt bedöma kvarstående biofilm. Implantatyta, tillverkare, defektdjup och behandlingstid analyserades som prediktionsvariabler för kvarstående biofilm (%). Beta-regressionsanalys användes för att bedöma resultatet. Resultat: Implantat-yta, tillverkare och behandlingstid påverkade mängden kvarvarande biofilmsimulation signifikant. Maskinbearbetade implantatytor, en längre behandlingstid, användande av EMS maskinen, resulterade alla i signifikant mindre kvarvarande biofilm. De två tillverkarna presterade endast lika i de mest apikala delarna av defekten, men detta var också det område med mest kvarvarande biofilm jämfört med mer koronala aspekter. Defekt djup hade ingen signifikant effekt på resultatet. Slutsats: Man kan förvänta sig bättre borttagning av biofilm när man behandlar maskinbearbetade implantatytor samt när man använder en längre behandlingstid.Vid den djupaste aspekten av defekten, äventyras dekontaminering av implantat
Farré, Berga Oriol. "Disseny, anàlisi i avaluació per elements finits i estudis mecànics d'una nova cabota de cargol per a retenció de pròtesis dentals cargolades a implants i la seva respectiva eina." Doctoral thesis, Universitat de Barcelona, 2017. http://hdl.handle.net/10803/405390.
Повний текст джерелаThe primary objective of this study was to design the optimal geometry of a novel screwdriver; create the grooves on a ball head screw; and demonstrate its resistance to a torque of up to 40 N·cm at an angulation of 0, 15 and 30 degrees by using nonlinear finite element analysis (FEA). A secondary objective was to create a foolproof and easily recognizable system. The grooved ball head screw and geometry of the screwdriver, functioning from an angulation of 0° to 30°, was generated using Pro-ENGINEER Wildfire 5.0 software. Static structural analyses between bodies in contact were performed at different angles of 0°, 15° and 30° at a torque of 20 N·cm and 40 N·cm, using nonlinear finite element simulation by means of ANSYS 12.0. The maximum stress supported by the ball head screw and screwdriver was similar at 20 N·cm and 40 N·cm. Although greater deformations were found at 40 N·cm, these were small and might not affect the performance of the system. Besides, the rupture torque value for the M2 connection was 55 N·cm for 0° and 30°, and 47.5 N·cm for 15°. Finite element analysis showed this novel ball head screw and screwdriver system to be a good solution for angled screw channels in implant-supported prostheses. Finally, the needed mechanical tests to acquire more reliable data and to better understand its behaviour under fatigue conditions were developed in order to determine the torsion resistance of the Ball Head System (BHS) screw and screwdriver set at 0°, 20° and 30° angulations; to compare the BHS set with the 1.30 mm hexagonal screwdriver system (HexS) at 20°; and analyse the condition of the BHS after 10 and 30 iterations with 30 N·cm torque at 30° angulation. The BHS allows tightening at a torque of up to 54 N·cm. Under the same conditions, BHS showed more torque resistance than HexS, which could not be removed. Clinical relevance: This new system can be used for angled screw channels, and even in presence of deformation, most can be removed with their own screwdriver.
Nemes, Jordan. "Fear of dental implants among edentulous patients." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101732.
Повний текст джерелаBousdras, Vasileios. "Mechanical loading in implant dentistry." Thesis, Royal Veterinary College (University of London), 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.439452.
Повний текст джерелаPalacios, Garzón Natalia. "La pérdida marginal ósea en implantes de conexión externa versus conexión interna e implantes crestales y subcrestales." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/671196.
Повний текст джерелаMeng, Hsiu-Wan. "Soft Tissue Healing around Platform Matched and Switched Dental Implants." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1373290429.
Повний текст джерелаShah, Sweety Dayanand. "Implant Strength After Implantoplasty." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1563401217739776.
Повний текст джерелаSenkal, Doruk. "Haptic surgical aid system with magnetorheological brakes for dental implants." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Thesis/Fall2009/d_senkal_111509.pdf.
Повний текст джерелаTitle from PDF title page (viewed on Jan. 4, 2010). "School of Engineering and Computer Science." Includes bibliographical references (p. 77-81).
Bandeira, de Oliveira Patricia. "Comparing two methods of surgical treatment planning with mini dental implants." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=114551.
Повний текст джерелаObjectif : Cette étude évalue les différences entre la planification de traitements avec implants dentaires utilisant un guide chirurgical fabriqué à l'aide de la tomographie volumétrique numérisée 3D (Cone Beam Computed Tomography, CBCT) et d'un logiciel d'imagerie, et l'utilisation d'une méthode conventionnelle basée sur des repères anatomiques et sur la conception de prothèses. Méthodes: En se basant sur des repères anatomiques de la région interforaminale, quatre manches métalliques servant de guide ont été installés dans des modèles de radiographie fabriqués sur moule mandibulaire pour le placement de 64 implants chez 16 patients (n = 16). Chaque patient participant à l'étude a passé un examen CBCT avec le modèle dans la bouche. Les manches en métal ont été localisées sur le scan, et leurs positions ont été comparées aux positions d'implants déterminées avec le logiciel de planification d'implants. En utilisant des outils spécifiques fournis par le logiciel, les différences entre les points d'entrée osseux ainsi que les angulations, dans les directions mésio-distale et bucco-linguale, ont été mesurées pour chaque implant. Les différences médianes ont été comparées en utilisant le test des rangs signés de Wilcoxon pour échantillons appariés. Résultats: Les différences médianes (intervalles interquartiles) des points d'entrée basés soit sur la méthode des repères anatomiques ou la méthode du logiciel d'imagerie étaient de 0,8 (0,0 à 0,85) mm dans le sens mésio-distal et 0,7 (0,0 à 5,0) mm dans la direction linguale-labiale (p<0,001). Une différence d'angle significative a été observée entre les deux méthodes dans les directions mésio-distale et labial-linguale (p<0,001). Les différences médianes (intervalle interquartile) des angulations entre les deux méthodes étaient de 2,2 (0,0 à 10,05) degrés et 4,9 (0,0 à 18,7) degrés (p<0,001) respectivement. Conclusion: La planification du placement des implants à l'aide d'un logiciel d'imagerie CBCT a pour résultat une variation dans le positionnement et l'angulation des implants en comparaison à la planification du traitement en utilisant la méthode conventionnelle basée sur les points de repère anatomiques. Ces différences peuvent avoir un impact sur les résultats cliniques.
Carvalho, Breno Carnevalli Franco de 1963. "Análise fotoelástica da distribuição de tensões geradas por carregamento em coroas unitárias suportadas por implantes curto e longo." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288566.
Повний текст джерелаTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
Made available in DSpace on 2018-08-24T03:25:43Z (GMT). No. of bitstreams: 1 Carvalho_BrenoCarnevalliFrancode_D.pdf: 2254429 bytes, checksum: 0864903c9e5a5e409b843fd792284ecc (MD5) Previous issue date: 2013
Resumo: Implantes curtos são utilizados em situações clínicas quando a altura e/ou a espessura óssea são insuficientes. A proposta neste estudo foi verificar por meio da análise de tensão fotoelástica a influência exercida pela altura e largura da coroa protética na força transmitida aos implantes curto (7 mm) e longo (13 mm) quando o carregamento foi efetuado no centro ou na extremidade das coroas. As dimensões da altura e da largura da coroa simulada foram estabelecidas com base nas dimensões de dentes pré-molar e molar inferiores humanos e a espessura estabelecida em 6 mm. O corpo-de-prova de resina fotoelástica foi feito com o sistema bi componente à base de resina epóxi modificada e endurecedor. Os carregamentos foram de 0,4 kgf no centro e de 0,3 kgf numa das extremidade da coroa. A análise fotoelástica avaliando as ordens de franjas ao redor dos implantes foi feita com polariscópio de transmissão. Cada fotografia foi analisada três vezes no programa Fringes para ordens de franja de 0 a 4, considerando as médias da ordem das franjas e da tensão cisalhante para cada ponto estabelecido no modelo. Os dados foram submetidos à ANOVA dois fatores e diferenças estatísticas comparadas pelo teste t de Student em nível de significância de 5%. Os resultados mostraram que não houve diferença entre os níveis de tensões gerados pela altura e largura das coroas protéticas sobre os implantes curto e longo, quando os carregamentos foram feitos tanto no centro como na extremidade das coroas. Concluiu-se que as tensões geradas sobre os implantes curto e longo foram similares qualquer que fosse o tamanho e o local dos carregamentos aplicados sobre as coroas; houve diferença na magnitude da tensão exercida sobre os implantes curto e longo, sendo maior para o implante curto
Abstract: Short implants are used in clinical situations when the mass of bone is deficient in height and/or thickness. The purpose of this study was to verify the height and width crown influence in the stress transmission in short (7mm) and long (13mm) implants when loaded at center and edge of the crown. The simulated crown dimensions were established using a natural premolar and molar crown dimensions and the thickness was 6 mm. The photoelastic models were made using a dual system based on modified epoxi resin and catalyser. The crowns were loaded with 0,4 kgf at the center and 0,3 kgf at the edge. The photoelastic analysis for fringe order around the implants was made using a transmission polariscope. The maximum shear stress and the fringe values from 0 to 4 were determined in each photography measured three times using Fringes software. Two-way ANOVA and t Student test at 5% significance were perfomed. The results showed no difference in the stress levels produced by different height and width crown over the short and long implants when loaded both center and edge of the crowns. In conclusion, the results showed similar stress on the short and long implants regardless the size and the loaded crown area; however, there was statistical difference in the stress level on the implants being higher for the short implant
Doutorado
Protese Dental
Doutor em Clínica Odontológica
Alvira, González Joaquín. "Utilización de células madre adiposas en procesos de regeneración ósea guiada en defectos de tamaño crítico de la cortical vestibular." Doctoral thesis, Universitat de Barcelona, 2017. http://hdl.handle.net/10803/404301.
Повний текст джерелаThe aim of both experimental studies was to assess bone regeneration potential as well as percentage of BIC (bone implant contact) in three-wall critical size defects of vestibular cortical bone after tooth extraction and implant placement, using a ceramic biomaterial (β-tricalcium phosphate β-TCP) alone or coated with fibronectin (β-TCP-Fn), or the combination of fibronectin and ADSCs (β-TCP -Fn-ADSCs) as compared with a control defect (without biomaterial filling) after three months of healing. MATERIAL AND METHOD: Both studies were carried out on 18 Beagle dogs. They were approved by the Committee of Animal Experimentation (CEEA 227-109) of the University of Barcelona. Four critical dehiscence defects were created in both hemiarches that were randomly regenerated with a different phosphocalic material (β-TCP-Fn-ADSCs, β-TCP-Fn, β-TCP). One defect was left empty as a control. A dental implant was placed simultaneously to the regenerative procedures in each defect of one hemiarch. The animals were divided into three groups according to the time of euthanasia (1, 2, or 3 months of healing). The differences in the histomorphometric variables between the control group and the three study groups (β-TCP, β-TCP-Fn and β-TCP-Fn-ADSC) at T1, T2 and T3 were evaluated with the analysis of variance (ANOVA) and the differences between data at T1, T2 and T3 with the Student's t-test for paired samples. RESULTS: The percentage of neoformed bone as well as BIC in critical size defects of vestibular cortical bone treated with β-TCP-Fn-ADSCs was not statistically superior than that registered with β-TCP alone or coated with fibronectin (β-TCP-Fn). Likewise, none of the three study groups were superior to the control defects in the three evaluated times. However, the use of adipose stem cells and fibronectin coating a phosphocalcium material maintained the regenerated space more efficiently after three months of healing. CONCLUSIONS: The combination of adipose stem cells with fibronectin as a coating of a phosphocalcium biomaterial in regenerative procedures of dehiscence type defects does not seem to increase the percentage of neoformed bone tissue as well as bone apposition on the implant surface. However, it maintains the regenerated space more efficiently after three months of healing compared to the other groups.
Coronado, López Samantha Lucely. "Factores de riesgo en el fracaso de implantes dentales." Master's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2018. http://hdl.handle.net/10757/626285.
Повний текст джерелаDental implants provide the patient and dental health professional with additional options previously unavailable for improving function and/or aesthetics. Although replacement of lost teeth with dental implants is an effective treatment, their predictability depends on successful osseointegration during the healing process, nevertheless there is various amounts of factors that can interfere or affect this healing process. The aim of this review is to explore some of the risk factors that could increase failure incidence in the treatment of dental implants.
Trabajo académico
Abu-Hammad, Osama Abdalla M. "The influence of some factors on compressive stress levels around dental implants." Thesis, University of Bristol, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337637.
Повний текст джерелаBrett, Christopher A. "Azithromycin concentration in peri-implant crevicular fluid and its influence on microbial colonization dynamics following a single prophylactic dose prior to implant placement." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1562330930491338.
Повний текст джерелаGil, Mindy S. "Comprehensive Optical Assessment of Peri-Implant Mucosa." Thesis, Harvard University, 2015. http://nrs.harvard.edu/urn-3:HUL.InstRepos:17331958.
Повний текст джерелаMir, Mari Javier. "Estudio sobre la influencia de la sutura y la técnica quirúrgica en la estabilidad dimensional primaria en la regeneración ósea guiada en implantología mediante el uso de la tomografía computada de haz cónico." Doctoral thesis, Universitat de Barcelona, 2017. http://hdl.handle.net/10803/404254.
Повний текст джерелаINTRODUCTION: Guided bone regeneration (GBR) in combination with implant placement has become a routine treatment. However, there is still a lack of evidence regarding critical aspects of such GBR procedures, especially the ones related with primary stability of the graft materials. Accordingly, the present investigation was designed to analyze the influence of flap manipulation and guided bone regeneration materials with respect to the volume stability of the augmented region during suturing of mucosal flaps. MATERIAL AND METHODS: Peri-implant box-shaped bone defects were created in pig mandibles. Three procedures were tested in the first part of the investigation: - Granulate (particulated xenograft + collagen membrane) - Granulate + Pins (I) (particulated xenograft + collagen membrane + fixation pins) - Solid block (block xenograft + collagen membrane) Two procedures were tested in the second part: - Granulate + Pins (II) (particulate xenograft applied buccally + collagen membrane + pins) - L-shaped soft-block (particulate xenograft applied buccally + L-shaped soft-block xenograft applied buccally and occlusally + collagen membrane + pins) Cone beam computed tomography scans were obtained prior and after blinded wound closure. The horizontal thickness (HT) of the augmented region was assessed at the implant shoulder (HT0mm) and at 1 mm to 5 mm apical to the implant shoulder (HT1mm - HT5mm). Repeated measures ANOVA were used for statistical analysis. RESULTS: Wound closure induced a statistically significant change of HT0mm and of HT1mm in all the treatment groups (p≤0.05). The use of fixation pins or a solid block performed better than a particulated xenograft plus collagen membrane alone (p≤0.05). The addition of a L-shaped block statistically improved stability (p≤0.05). CONCLUSION: Wound closure induced significant displacement of the bone substitute, especially in the coronal portion of the augmented site. The stability of the bone substitute and collagen membrane was enhanced by the application of fixation pins and by the use of block bone substitute instead of particulated bone substitute. However, still a 20% of graft displacement was detected at the coronal level. Finally, the addition of a L-shaped soft-block substantially improved coronal stability.
Saha, Saroj Kumar. "Effect of corticosteroid medication of periodontal and implant related procedures." Thesis, University of Colorado at Denver, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10126245.
Повний текст джерелаBackground: Corticosteroid medications have been researched extensively in oral surgery procedures for the proposed reduction in trismus, swelling, and pain. No consensus has been determined for the most efficacious type, timing, and dosage of medication thus far. In addition little is known about the usage of corticosteroids for periodontal and implant related procedures. The aims of this review are to help clinicians understand the usage of corticosteroid medications in various dental surgeries.
Methods: The PubMed-MEDLINE and the Cochrane-CENTRAL databases were searched through and up till June 2015 to identify appropriate studies regarding this aim. Appropriate studies were those reporting on the usage of corticosteroids related to its pathophysiology, surgical related outcomes, and patient related outcomes in dental procedures.
Conclusions: The search yielded 256 unique papers after selection resulted in 12 publications that met the eligibility criteria. In general the usage of corticosteroids in third molar extractions improved post operatives outcomes related to edema, trismus, and a slight reduction in pain. However, It cannot be recommended to use corticosteroids for pain management. Due to the various types, routes, and dosages of corticosteroid used in studies, no specific drug, route, or dosage can be recommended by literature. The usage of corticosteroids for periodontal and implant related procedures has not been investigated. Further research is required to investigate the possible benefits of corticosteroids on reduction of surgical swelling in periodontal and implant related surgeries.
Gray, Crawford F. "The development of magnetic resonance imaging for implant dentistry." Thesis, University of Glasgow, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250064.
Повний текст джерела