Abstract：
: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.
journal_name
J Mech Behav Biomed Materauthors
Commisso MS,Martínez-Reina J,Ojeda J,Mayo Jdoi
10.1016/j.jmbbm.2014.09.022subject
Has Abstractpub_date
2015-01-01 00:00:00pages
23-35eissn
1751-6161issn
1878-0180pii
S1751-6161(14)00306-3journal_volume
41pub_type
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