Finite element analysis of the human mastication cycle

被引：50

作者：

Commisso, Maria S. ^{[1
]}

Martinez-Reina, Javier ^{[1
]}

Ojeda, Joaquin ^{[1
]}

Mayo, Juana ^{[1
]}

机构：

[1] Univ Seville, Dept Mech Engn, E-41092 Seville, Spain

来源：

JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS | 2015年 / 41卷

关键词：

Mastication; Temporomandibular joint; Lateral pterygoid; FE simulation; Articular disc; Quasi-linear viscoelastic model; LATERAL PTERYGOID MUSCLE; HUMAN TEMPOROMANDIBULAR-JOINT; MANDIBULAR CONDYLE; STRESS-ANALYSIS; DYNAMIC-MODEL; HUMAN JAW; MOVEMENT; CONSTANTS; HEADS;

D O I：

10.1016/j.jmbbm.2014.09.022

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The aim of this paper is to propose a biomechanical model that could serve as a tool to overcome some difficulties encountered in experimental studies of the mandible. One of these difficulties is the inaccessibility of the temporomandibular joint (TMJ) and the lateral pterygoid muscle. The focus of this model is to study the stresses in the joint and the influence of the lateral pterygoid muscle on the mandible movement. A finite element model of the mandible, including the TMJ, was built to simulate the process of unilateral mastication. Different activation patterns of the left and right pterygoid muscles were tried. The maximum stresses in the articular disc and in the whole mandible during a complete mastication cycle were reached during the instant of centric occlusion. The simulations show a great influence of the coordination of the right and left lateral pterygoid muscles on the movement of the jaw during mastication. An asynchronous activation of the lateral pterygoid muscles is needed to achieve a normal movement of the jaw during mastication. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：23 / 35

页数：13

共 51 条

[1] Three-dimensional finite element analysis of the cartilaginous structures in the human temporomandibular joint [J].