Construction of a three-dimensional finite element model of pulp-exposed maxillary premolar with wedge-shaped defect restored by fiber post

doi:10.3969/j.issn.2095-4344.0004

Abstract

Abstract:

BACKGROUND: To date, there is no report on the successful construction of a three-dimensional finite element model of maxillary premolar with wedge-shaped defect restored by fiber post.

OBJECTIVE: To establish the three-dimensional finite element model of maxillary premolar with wedge-shaped defect restored by fiber post.

METHODS: Micro-CT was used to obtain imaging information of the human maxillary first premolar sample. Then Mimics, Geomagic and Hypermesh were used to establish a clear-structured three-dimensional finite element model of pulp-exposed maxillary premolar with wedge-shaped defect restored by fiber post.

RESULTS AND CONCLUSION: The three-dimensional finite element model of normal maxillary premolar had 180 119 units and 33 289 nodes. Compared with the real subject, the three-dimensional finite element model of maxillary premolar with wedge-shaped defect restored by fiber post had vivid appearance, good image quality and accurate grid partitioning with 237 496 units and 43 965 nodes in total, which could obtain good results in the aspects of geometry, boundary constraint and mechanical compatibility. Moreover, it could better simulate the mechanical stress distribution of diseased teeth under occlusion to further confirm the magnitude and distribution of forces, thereby providing a better basis for future biomechanical studies.

中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

Key words: Bicuspid, Post and Core Technique, Finite Element Analysis, Tissue Engineering

CLC Number:

R318

Mo Si-su, Bao Wei, Shen Qing-yi.

Construction of a three-dimensional finite element model of pulp-exposed maxillary premolar with wedge-shaped defect restored by fiber post

[J]. Chinese Journal of Tissue Engineering Research, 2018, 22(2): 183-188.

Figures/Tables 4

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