Please use this identifier to cite or link to this item:
Type: Artigo de periódico
Title: Biofilm And Saliva Affect The Biomechanical Behavior Of Dental Implants
Author: Bordin
Dimorvan; Cavalcanti
Indira M. G.; Pimentel
Marcele Jardim; Fortulan
Carlos A.; Sotto-Maior
Bruno S.; Del Bel Cury
Altair A.; da Silva
Wander Jose
Abstract: Friction coefficient (FC) was quantified between titanium-titanium (Ti-Ti) and titanium-zirconia (Ti-Zr), materials commonly used as abutment and implants, in the presence of a multispecies biofilm (Bt) or salivary pellicle (Pel). Furthermore, FC was used as a parameter to evaluate the biomechanical behavior of a single implant-supported restoration. Interface between Ti-Ti and Ti-Zr without Pel or Bf was used as control (ad). FC was recorded using tribometer and analyzed by two-way Anova and Tukey test (p < 0.05). Data were transposed to a finite element model of a dental implant-supported restoration. Models were obtained varying abutment material (Ti and Zr) and FCs recorded (Bf, Pel, and Ctrl). Maximum and shear stress were calculated for bone and equivalent von Misses for prosthetic components. Data were analyzed using two-way ANOVA (p < 0.05) and percentage of contribution for each condition (material and FC) was calculated. PC significant differences were observed between Ti-Ti and Ti-Zr for Ctrl and Bf groups, with lower values for Ti-Zr (p < 0.05). Within each material group, Ti-Ti differed between all treatments (p < 0.05) and for Ti-Zr, only Pel showed higher values compared with Ctrl and Bf (p < 0.05). PC contributed to 89.83% (p < 0.05) of the stress in the screw, decreasing the stress when the FC was lower. FC resulted in an increase of 59.78% of maximum stress in cortical bone (p = 0.05). It can be concluded that the shift of the FC due to the presence of Pel or Bf is able to jeopardize the biomechanical behavior of a single implant-supported restoration. (C) 2015 Elsevier Ltd. All rights reserved.
Subject: Finite-element-analysis
Abutment Interface
Osseointegrated Implants
Screw Preload
Marginal Bone
Country: OXFORD
Citation: Biofilm And Saliva Affect The Biomechanical Behavior Of Dental Implants. Elsevier Sci Ltd, v. 48, p. 997-1002 APR-2015.
Rights: embargo
Identifier DOI: 10.1016/j.jbiomech.2015.02.004
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File SizeFormat 
wos_000352672100016.pdf1.36 MBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.