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개(犬)의 교합력 관찰을 위한 견치와 열육치의 3차원 유한요소 분석

Three-Dimensional Finite element analysis of Canine and Carnassial for Observation of Dog Bite forces

대한치과기공학회지 2019년 41권 4호 p.295 ~ 302
박유진 ( Park Yu-Jin ) - 부산가톨릭대학교 치기공학과

김치영 ( Kim Chi-Young ) - 부산가톨릭대학교 치기공학과
최성민 ( Choi Sung-Min ) - 부산가톨릭대학교 치기공학과

Abstract


Purpose: This study is for the prosthesis of dogs. Observe the occlusal relation between the dog’s canine and carnassial teeth. The strength and the direction of the occlusal by 3D FEM analysis.

Methods: The mandibular canine and carnassial of dogs were tested. The dog’s skull was contact point confirmed by dental CAD. The skull of the dog was 3D modeled by CT. The 3D model was analyzed by ABAQUS. Opening and closing movement has been a force of 100N, 200N, 300N, 500N, 1000N, 1,500N. The peak von Mises stress distribution was confirmed.

Results: As occlusal force increased, stress appeared to 1.34 ㎫, 3.32 ㎫, 5.00 ㎫, 6.19 ㎫, 5.58 ㎫, 5.47 ㎫ in left canine. and Stress was seen at 2.10 ㎫, 3.08 ㎫, 3.89 ㎫, 5.50 ㎫, 7.04 ㎫, 7.18 ㎫ in the right canine. Stress appeared at 2.41 ㎫, 3.53㎫, 5.15 ㎫, 7.28 ㎫, 31.26 ㎫, 67.22 ㎫ in the left carnassial. and Stress was seen at 1.57 ㎫, 2.96 ㎫, 3.76 ㎫, 6.01 ㎫, 20.94 ㎫, 64.38 ㎫ in the right carnassial.

Conclusion: Peak von Mises stress values were found at the peak of the canine, the buccal of the central cusp of the carnassial, and the occlusal surface of the distal cusp.

키워드

Animal tooth; Bite force; Dog restoration; Dog tooth; Finite element analysis
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