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A three-dimensional finite element analysis of the relationship between masticatory performance and skeletal malocclusion

Authors
 Jung Chul Park  ;  Hyun Seung Shin  ;  Jung Yul Cha  ;  Jong Tae Park 
Citation
 Journal of Periodontal & Implant Science, Vol.45(1) : 8-13, 2015 
Journal Title
 Journal of Periodontal & Implant Science 
ISSN
 2093-2278 
Issue Date
2015
Keywords
Computer simulation ; Finite element analysis ; Malocclusion
Abstract
PURPOSE: The aim of this study was to evaluate the transfer of different occlusal forces in various skeletal malocclusions using finite element analysis (FEA). METHODS: Three representative human cone-beam computed tomography (CBCT) images of three skeletal malocclusions were obtained from the Department of Orthodontics, Yonsei University Dental Hospital, Seoul, South Korea. The CBCT scans were read into the visualization software after separating bones and muscles by uploading the CBCT images into Mimics (Materialise). Two separate three-dimensional (3D) files were exported to visualize the solid morphology of skeletal outlines without considering the inner structures. Individual dental impressions were taken and stone models were scanned with a 3D scanner. These images were integrated and occlusal motions were simulated. Displacement and Von Mises stress were measured at the nodes of the FEA models. The displacement and stress distribution were analyzed. FEA was performed to obtain the 3D deformation of the mandibles under loads of 100, 150, 200, and 225 kg. RESULTS: The distortion in all three skeletal malocclusions was comparable. Greater forces resulted in observing more distortion in FEA. CONCLUSIONS: Further studies are warranted to fully evaluate the impact of skeletal malocclusion on masticatory performance using information on muscle attachment and 3D temporomandibular joint movements.
Files in This Item:
T201501008.pdf Download
DOI
10.5051/jpis.2015.45.1.8
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
Cha, Jung Yul(차정열)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/139863
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