In vitro investigation of the mechanical properties of CAD/CAM zirconia custom implant abutment
FANG Ke-da
DING Xin
ZHOU-Hui
LI Guang-wen
ZHANG Yu-mei
Abstract：AIM:To compare the stress distribution and influence between CAD/CAM zirconia custom implant abutment and the finished titanium abutment.METHODS:Implant finite element models of CAD/CAM zirconia custom implant abutment and the finished titanium abutment were established according to ISO standard 14801,stress distribution was analysed using ANSYS software.The models of fatigue testing samples of the 2 kinds of implant were esfablished according to ISO standard 14801.After 5 ℃-55 ℃ circled fatigue experiment,representative specimens were examined using stereomicroscopy and scanning electron microscopy,the gap between the components was measured.RESULTS:Implant with CAD/CAM zirconia custom abutment had stress concentration at the connection of zirconia abutment and Tibase,and the peak stress were higher than that of the implant with titanium abutment.The gaps in implant with CAD/CAM zirconia custom abutment were larger(P ＜ 0.05).After circled fatigue experiment,the gaps in implant with CAD/CAM zirconia custom abutment were much larger than that of the implant with titanium abutment.CONCLUTION:From the perspective of the stress analysis and the gap between the components,the finished titanium abutment is superior to CAD/CAM zirconia custom implant abutment.
Keywords：Finite element analysiscircled fatigue experimentcustom implant abutment
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 22-27 )