Open AccessEffect of Abutment Design Parameter on Mechanical Properties for Dental Implant System
Author(s) -
Xiuyuan Lu,
Xiao Zhang,
Jianyu Chen,
Xianshuai Chen
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/626/1/012016
Subject(s) - abutment , von mises yield criterion , finite element method , implant , materials science , structural engineering , stress (linguistics) , orthodontics , crown (dentistry) , stress concentration , dental implant , dentistry , composite material , engineering , medicine , surgery , linguistics , philosophy
Abutments, as the intermediate connection between implant and crown vary on external characters decided by design parameters in order to suit for multiple clinical cases with the development of prosthodontics. The various angle, groove height (GH) and diameter of abutment brought different magnitude of stress to the dental implant system. Excessive stress concentration lead to fatigue fracture failure. Thus, in this study, parametric design and Finite Element Analysis (FEA) were combined to understand the effects of angled-abutment GH and diameter on the mechanical properties of the implant system. 30 models of abutment with varying angles (15° and 25°), diameters (4, 5 and 6mm) and GH (1, 2, 3, 4 and 5mm) were simulated and the values of Mises the equivalent stresses were analyzed by two-way ANOVA. The results demonstrated that the three design parameters had no influence on the area where stress concentration occurred and the diameter had no effect on the maximum stress while the GH had a significant influence (P<0.05).