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Finite Element Analysis for Elastic Modulus of the Periodontal Ligament in Premolar Regions  

Chon Chang Soo (연세대학교 대학원 의공학과)
Shim June Sung (연세대학교 보철학교실)
Kim Young Ho (연세대학교 의공학부, 의용계측 및 재활공학 연구센터)
Kim Han Sung (연세대학교 의공학부, 의용계측 및 재활공학 연구센터)
Publication Information
Journal of the Korean Society for Precision Engineering / v.22, no.10, 2005 , pp. 202-209 More about this Journal
Abstract
In this study, two dimensional and three dimensional finite element models of lower first premolar were analyzed. The mandibular specimen including a premolar was obtained from a cadaver and scanned with micro-CT. Finite element method models were reconstructed from CT images at mid-sagittal plane of the tooth. Most studies have used a wide range of value(0.07${\~}$1000MPa) for elastic modulus of periodontal ligament. The elastic modulus of the periodontal ligament was analyzed by finite element method and compared with that of experiment model. This study indicated that the model without pulp was more suitable than that with pulp in two dimensional finite element analysis.
Keywords
Finite element method; Periodontal ligament; Premolar; Pulp;
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