Mechanical properties of temporalis muscle: A preliminary study

• Type: Article in International Conference Proceedings Book
• Date: 2011

Authors

trindade, vla (Author) Other; santos, s (Author) Other; parente, mpl (Author) FEUP; martins, p (Author) FEUP; natal jorge, rm (Author) FEUP; santos, a (Author) Other; santos, l (Author) Other; fernandes, j (Author) Other

Conference proceedings International

Title: TECHNOLOGY AND MEDICAL SCIENCES - TMSI 2010

Pages: 173-176

6th International Conference on Technology and Medical Sciences (TMSi)

Fac Engn Univ Porto, Porto, PORTUGAL, OCT 21-23, 2010

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Authenticus ID: P-008-29C

Abstract (EN): The act of chewing involves the use of the four pairs of mastication muscles, the temporalis, masseter and the external and of the pterigoideus. The temporalis integration occurs in the temporal fossa and ends on the anterior mandibular ramus and coronoid apophysis, thus is main function to elevate and retract the mandible [Gray, et al. 1995]. Studying the mastication muscles such as the temporal, it is an important step on understanding the bruxism pathology, which is responsible for many symptoms such as chronic headache, insomnia and sore or painful jaw that affect the patient's life quality. It is an oral parafunctional activity, characterized by the grinding of the teeth and is typically accompanied by the clenching of the jaw occurring mostly during sleep ultimately leading to temporomandibular joint dysfunction [Jadidi, et al. 2007]. This biomechanical study of the temporalis aims to characterize the chosen muscle's behavior by means of the Neo-Hookean constitutive equation and it constant. The method we used was uniaxial tension testes performed on samples collected from a cadaver donor at the National Institute of Legal Medicine (INML). The Marquart-Leven's algorithm, presented at [Martins, 2009], was employed to compute the constants associated with each stress-strain graphic to the chosen constitutive model. Afterwards we compared constants by some plotting work in order to determine what would the differences be, between the three samples taken from different areas of the muscle. The conclusions will eventually lead to the recognition of the temporalis importance on the mastication muscles' group and on oral health disorders such as bruxism and temporomandibular joint pathologies.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4