Finite Element Analysis on Loosen Teeth using Fibrous Periodontal Splint Restoration

5th International Conference on Mechanics and Mechatronics Research

机械制造;无线电电子学

Ding, Chengshui^1 ; Shi, Xue^2 ; Song, Yang^1 ; Qiu, Lulu^1 ; Li, Xinyue^2 ; Zhang, Chunqiu^1

Tianjin Key Laboratory of the Design, Intelligent Control of the Advanced Mechatronical System, National Demonstration Center for Experimental Mechanical and Electrical Engineering Education, School of Mechanical Engineering, Tianjin University of Technology, Tianjin

300384, China^1

Periodontitis Department, Tianjin Stomatological Hospital, Tianjin

300384, China^2

关键词: Dental models;    Geomagic studios;    Maximum stress;    Mechanical state;    Micro-CT scanning;    Periodontal membranes;    SolidWorks;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/417/1/012038/pdf
DOI  :  10.1088/1757-899X/417/1/012038

来源: IOP

【 摘 要 】

Objective To investigate the effect of fibre periodontal splint restoration on mandibular anterior teeth displacement and periodontal membrane stress. Methods Micro-CT scanning technology, combined with Mimics, Geomagic studio and SolidWorks were used to establish 3D dental models of mandibles with teeth and the models fibre periodontal splint restoration; the models of mandibular anterior loosen teeth was constructed under 30 degree oblique 25N loading on the labial and lingual sides respectively. Then, under different angles force with or without the splint, the analysis on dental mechanical state are given. Results It was determined that the sum of the maximal displacement of the loosen tooth model at the lingual and labial sides was 1 mm, which represented the degree I loosen model. After splint repair on the model, the maximal displacement of loosen tooth decreased 47.7%, 85.1% and 85.8% at 0 degree, 15 degree and 30 degree forces respectively, and the maximum stress of periodontal membrane decreased by 22.3%, 61.2% and 74.9%. Conclusion Fixation of loosen teeth through fibre periodontal splints can reduce the maximum stress of periodontal membrane and the maximal displacement of the teeth, thus ensuring the stability of loosen tooth.