An investigation of dentinal fluid flow in dental pulp during food mastication: Simulation of fluid-structure interaction

Kuo Chih Su, Shu Fen Chuang, Eddie Yin Kwee Ng, Chih Han Chang

研究成果: Article同行評審

21 引文 斯高帕斯(Scopus)

摘要

This study uses fluid-structure interaction (FSI) simulation to investigate the relationship between the dentinal fluid flow in the dental pulp of a tooth and the elastic modulus of masticated food particles and to investigate the effects of chewing rate on fluid flow in the dental pulp. Three-dimensional simulation models of a premolar tooth (enamel, dentine, pulp, periodontal ligament, cortical bone, and cancellous bone) and food particle were created. Food particles with elastic modulus of 2,000 and 10,000 MPa were used, respectively. The external displacement loading (5 μm) was gradually directed to the food particle surface for 1 and 0.1 s, respectively, to simulate the chewing of food particles. The displacement and stress on tooth structure and fluid flow in the dental pulp were selected as evaluation indices. The results show that masticating food with a high elastic modulus results in high stress and deformation in the tooth structure, causing faster dentinal fluid flow in the pulp in comparison with that obtained with soft food. In addition, fast chewing of hard food particles can induce faster fluid flow in the pulp, which may result in dental pain. FSI analysis is shown to be a useful tool for investigating dental biomechanics during food mastication. FSI simulation can be used to predict intrapulpal fluid flow in dental pulp; this information may provide the clinician with important concept in dental biomechanics during food mastication.

原文English
頁(從 - 到)527-535
頁數9
期刊Biomechanics and Modeling in Mechanobiology
13
發行號3
DOIs
出版狀態Published - 2014 6月

All Science Journal Classification (ASJC) codes

  • 生物技術
  • 建模與模擬
  • 機械工業

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