Comparison of stress distribution in dental crown with different cusp angles: 3D finite element analysis

Han-Wool Kim; Byung-Ho Choi; Eun-Jeong Bae; Joong-Yeon Lim

doi:10.1080/10255842.2018.1549659

Comparison of stress distribution in dental crown with different cusp angles: 3D finite element analysis

Comput Methods Biomech Biomed Engin. 2019 Feb;22(3):251-258. doi: 10.1080/10255842.2018.1549659. Epub 2019 Feb 17.

Authors

Han-Wool Kim¹, Byung-Ho Choi², Eun-Jeong Bae³, Joong-Yeon Lim³

Affiliations

¹ a Department of Mechanical Engineering , Dongguk University , Seoul , South Korea.
² b Department of Dentistry Wonju College of Medicine , Yonsei University , Wonju , South Korea.
³ c Department of Mechanical, Robotics, and Energy Engineering , Dongguk University , Seoul , South Korea.

PMID: 30773916
DOI: 10.1080/10255842.2018.1549659

Abstract

The purpose of this study is to measure the failure risk of a crown depending on the cusp angle. Three all-ceramic crown models consisting of C_H (high incline), C_M (middle incline), and C_L (low incline) are designed. Stress is applied to the crown with Loading case-1 (top of cusp tip) and Loading case-2 (middle of cusp ridge) with the use of FEA software. In Loading case-1 and case-2, the C_H showed the highest Maximum Principal Stress (MPS) while the CL showed the lowest MPS. The cusp angle is an influential factor affecting stress distribution in dental crowns.

Keywords: Finite element; cusp angle; stress distribution; tooth crown.

Publication types

Comparative Study

MeSH terms

Crowns*
Dental Prosthesis Design*
Dental Stress Analysis*
Finite Element Analysis*
Humans
Stress, Mechanical