Results: 23

Does the implant-abutment interface interfere on marginal bone loss? A systematic review and meta-analysis

Braz. oral res. (Online); 33 (supl.1), 2019
Abstract The objective of this systematic review was to compare the conical internal connection (IC) with the external hexagonal connection (EH) on the occurrence of marginal bone loss (ΔMBL). Different databases were used to carry out the selection of the elected studies. The studies were judged ac...

Influencia de parámetros de diseño sobre el comportamiento biomecánico de un implante dental corto

Introducción: Los implantes dentales deben transmitir esfuerzos al tejido óseo y generar deformaciones que favorezcan el equilibrio entre los procesos de formación y reabsorción ósea. Debido al alto número de pacientes que presentan maxilares con dimensiones reducidas, es necesario estudiar el comp...

Tightening techniques for the retaining screws of universal abutment

Purpose: This study evaluated the torque maintenance of universal abutment retaining screws using different tightening techniques, and coated or uncoated screws. Material and method: The screws were tightened to implants as following: Control - 32 Ncm torque; H20 - holding 32 Ncm torque for 20 s; R - 32...

Peri-implant evaluation of osseointegrated implants subjected to orthodontic forces: results after three years of functional loading

ABSTRACT Objective: The objective of this study was to clinically and radiographically assess the peri-implant conditions of implants used as orthodontic anchorage. Methods: Two groups were studied: 1) a test group in which osseointegrated implants were used as orthodontic anchorage, with the applica...

Análise das tensões em diferentes conexões de implante/ abutment

O objetivo deste estudo foi comparar, por meio de uma análise fotoelástica, as tensões geradas na região peri-implantar dos implantes com diferentes conexões protéticas. Foram confeccionados 4 modelos em resina fotoelástica com implante unitário e coroa em alturas padronizadas. Mod 1: Hexágono E...

Biomecânica da união dente-implante com plataforma restauradora reduzida, sistema de retenção tipo cone morse e roscas quadradas: uma análise por elementos finitos

Objetivou-se, a partir do Método dos Elementos Finitos, avaliar a biomecânica da união dente-implante e implante-implante, além de estabelecer uma análise qualitativa com achados fotoelásticos prévios. Foram planejados quatro modelos tridimensionais: dois Modelos Teste (dentes unidos a implantes) ...

Effects of different torque levels on the implant-abutment interface in a conical internal connection

Braz. oral res. (Online); 30 (1), 2016
Abstract The fit of the implant-abutment interface was assessed by the metallographic technique and by scanning electron microscopy (SEM), using solid abutment types at different torque levels. Forty Morse taper connections and forty solid abutments were used at different torque levels (repeated after 10...

Prosthetic abutment influences bone biomechanical behavior of immediately loaded implants

Braz. oral res. (Online); 30 (1), 2016
Abstract This study aimed to evaluate the influence of the type of prosthetic abutment associated to different implant connection on bone biomechanical behavior of immediately and delayed loaded implants. Computed tomography-based finite element models comprising a mandible with a single molar implant we...

Morse taper internal connection implants: would abutment reseating influence retention?

Braz. j. oral sci; 14 (3), 2015
Abstract Aim: To investigate whether the removal and reseating of the abutment influences the retention of Morse taper implant system. Methods: Two Morse taper implant systems were selected: Bicon Dental ImplantTM system (Bicon, LLC, Boston, MA, USA) and Kopp Implant(r) system (Kopp(r), Curitiba, PR, Bra...

Failure of prosthetic screws on 971 implants

Braz. j. oral sci; 14 (3), 2015
Abstract Aim: To evaluate the presence of failures in prosthetic screws and whether these failures are related to the type of prosthesis, abutment angulation and presence or not of intermediate. Methods: Two-hundred and sixty-seven patients were evaluated at the Federal University of Santa Catarina, tota...