Implant Supported Prostheses
Mostrando 13-24 de 42 artigos, teses e dissertações.
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13. Screw loosening of different UCLA-type abutments after mechanical cycling
AIM: To evaluate the loss of applied torque (detorque) values in cast and pre-machined abutments for external hex abutment/implant interface of single implant-supported prostheses subjected to mechanical cycling. METHODS: Ten metal crowns were fabricated using two types of UCLA abutments: cast and pre-machined with metal base in NiCrTi alloy and tightened to
Braz. J. Oral Sci.. Publicado em: 2013-09
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14. Load-bearing capacity of screw-retained CAD/CAM-produced titanium implant frameworks (I-Bridge®2) before and after cyclic mechanical loading
Implant-supported screw-retained fixed dental prostheses (FDPs) produced by CAD/ CAM have been introduced in recent years for the rehabilitation of partial or total endentulous jaws. However, there is a lack of data about the long-term mechanical characteristics. OBJECTIVE: The aim of this study was to investigate the failure mode and the influence of exten
J. Appl. Oral Sci.. Publicado em: 2013-07
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15. Avaliação de próteses fixas sobre implantes com diferentes níveis de ajuste pilar/prótese: efeito da ciclagem termomecânica sobre diferentes parafusos protéticos e análise fotoelástica da transmissão de tensões / Evaluation of fixed implant-supported prostheses with different levels of abutment/prosthesis fit: the effect of thermomechanical cycling on different abutment screws and photoelastic analysis of stress transmission
O objetivo deste estudo foi verificar os efeitos da ciclagem termomecânica sobre parafusos protéticos, convencionais de titânio e com cobertura de carbono, usados para fixação de próteses parciais fixas com desajuste de 150µm entre pilar e prótese, utilizando próteses sem desajuste como controle. Após ciclagem termomecânica das próteses, foram ve
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/06/2012
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16. Influência do material de infraestrutura e do desajuste vertical de próteses parciais fixas implantossuportadas nas tensões transmitidas às estruturas protéticas e ao tecido ósseo peri-implantar / Influence of framework material and vertical misfit of implant-suported partial prostheses on the stresses in prosthetic structures and peri-implant bone tissue
O objetivo neste estudo foi avaliar a influência do material de infraestrutura e diferentes níves de desajuste vertical na concentração de tensões em prótese parcial fixa implantossuportada (infraestrutura e porcelana de cobertura), parafuso de retenção e tecido ósseo peri-implantar durante o assentamento protético e frente à aplicação de carga
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
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17. Avaliação in vitro da transmissão de carga oclusal em próteses sobre implantes em função da inclinação de implantes através de análise fotoelástica / In vitro evaluation of occlusal load transmission in prosthetic implant according to the inclination of implants by photoelastic analysis
The All-on-Four technique was conceived in order to decrease the length of the cantilever in the rehabilitation of edentulous patients with implant-supported prosthesis. However, still persist questions related to the biomechanical behavior of implants and the proper technique All-on-Four, since issues such as peri-implant bone loss and failure of the prosth
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/09/2011
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18. Avaliação da deformação média gerada nos intermediários e na região peri-implantar durante as etapas de confecção da prótese parcial fixa parafusada: análise com strain gauges / Evaluation of abutment and simulated bone tissue mean deformation around dental implants, during fabrication stages of screw-retained fixed partial prostheses: strain gauges analysis
A adaptação passiva e estabilidade têm se tornado os dois pré-requisitos de maior importância na escolha dos materiais e técnicas de confecção em prótese implantossuportada. A proposta deste trabalho foi avaliar, com auxílio dos strain gauges ou extensômetros lineares elétricos, a deformação média ocorrida nos intermediários e na região peri
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/05/2011
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19. Análise tridimensional por elemento finito do comportamento biomecânico de próteses totais fixas implantossuportadas : efeito do tipo de conexão protética, cargas oclusais e número de implantes / Three-dimensional finite element analysis of biomechanics of implant-supported fixed prostheses : effect of connection system, occlusal load, and number of implants
The purpose of this study was to analyze the stress and strain distribution by three-dimensional finite element method in implant supported fixed prostheses and peri-implantar bone region, using two types of implant-abutment connection internal and external, correlated to the effect of axial loadings and number of implants. Virtual models were developed by s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/04/2011
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20. Effect of axial loads on implant-supported partial fixed prostheses by strain gauge analysis
OBJECTIVES: The present study used strain gauge analysis to perform an in vitro evaluation of the effect of axial loading on 3 elements of implant-supported partial fixed prostheses, varying the type of prosthetic cylinder and the loading points. MATERIAL AND METHODS: Three internal hexagon implants were linearly embedded in a polyurethane block. Microunit a
Journal of Applied Oral Science. Publicado em: 2011-12
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21. Validation of an experimental polyurethane model for biomechanical studies on implant-supported prosthesis: compression tests
OBJECTIVES: The complexity and heterogeneity of human bone, as well as ethical issues, most always hinder the performance of clinical trials. Thus, in vitro studies become an important source of information for the understanding of biomechanical events on implant-supported prostheses, although study results cannot be considered reliable unless validation stu
Journal of Applied Oral Science. Publicado em: 2011-02
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22. A 3-year follow-up study of all-ceramic single and multiple crowns performed in a private practice: a prospective case series
OBJECTIVES: Zirconia-based prostheses are commonly used for aesthetic crown and fixed restorations, although follow-up data are limited, especially for implant-supported crowns. The aim of this study was to evaluate the threeyear clinical results of the installation of 463 zirconia core crowns by a general dental private practice. METHODS: This study followe
Clinics. Publicado em: 2011
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23. Machined and plastic copings in three-element prostheses with different types of implantabutment joints: a strain gauge comparative analysis
OBJECTIVE: Using strain gauge (SG) analysis, the aim of this in vitro study was quantify the strain development during the fixation of three-unit screw implant-supported fixed partial dentures, varying the types of implant-abutment joints and the type of prosthetic coping. The hypotheses were that the type of hexagonal connection would generate different mic
Journal of Applied Oral Science. Publicado em: 2010-06
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24. Effect of the number of abutments on biomechanics of Branemark prosthesis with straight and tilted distal implants
OBJECTIVE: This study aimed to evaluate the bending moments, and compressive and tensile forces in implant-supported prostheses with three, four or five abutments. MATERIAL AND METHODS: Ten Pd-Ag frameworks were tested over two master models with: 1) parallel vertical implants, and 2) tilted distal implants. Strain gauges were fixed on the abutments of each
Journal of Applied Oral Science. Publicado em: 2010-04