Comparison of the outcomes of three-dimensional finite element analysis under arbitrary and realistic occlusal loading conditions in mandibular posterior region
10.14368/jdras.2020.36.2.112
- Author:
Wonsup LEE
1
;
Ghaith ALOM
;
Myung-Soo KIM
;
Young-Seok PARK
;
Young-Jun LIM
;
Myung-Joo KIM
;
Ho-Beom KWON
Author Information
1. Department of Prosthodontics, School of Dentistry, Seoul National University, Seoul, Republic of Korea
- Publication Type:Original Article
- From:Journal of Dental Rehabilitation and Applied Science
2020;36(2):112-120
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Purpose:The purpose of this study was to compare the biomechanical outcome in the mandibular posterior region between two different loading conditions by finite element analysis.
Materials and Methods:The mandibular posterior teeth model and the implant model were generated for the study. And 2 different types of loading conditions were provided: Arbitrary occlusion and natural occlusion obtained from the digital occlusal analyzer, Accura (Accura, Dmetec Co. Ltd., Seoul, Korea). Total load of 100 N was evenly distributed over arbitrary occlusion points, and 100 N load was differentially distributed over natural occlusion points according to Accura data. The biomechanical outcome was evaluated by the finite element analysis software.
Results:The result of finite element analysis showed considerable difference in both von Mises stress pattern and displacement under different loading conditions.
Conclusion:In finite element analysis, it is recommended to simulate a realistic occlusal loading pattern that is based on accurate measurement.
