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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Mandibular kinematics and masticatory muscles EMG in patients with short lasting TMD of mild-moderate severity

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Author(s):
De Felicio, Claudia Maria [1] ; Mapelli, Andrea [1, 2] ; Sidequersky, Fernanda Vincia [2] ; Tartaglia, Gianluca M. [2] ; Sforza, Chiarella [2]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Sch Med, Dept Ophthalmol Otorhinolaryngol & Head & Neck Su, BR-14049 Ribeirao Preto - Brazil
[2] Univ Milan, Dipartimento Sci Biomed Salute, Lab Funct Anat Stomatognath Apparat, FARC, Fac Med, Milan - Italy
Total Affiliations: 2
Document type: Journal article
Source: JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY; v. 23, n. 3, p. 627-633, JUN 2013.
Web of Science Citations: 22
Abstract

Mandibular kinematic and standardized surface electromyography (sEMG) characteristics of masticatory muscles of subjects with short lasting TMD of mild-moderate severity were examined. Volunteers were submitted to clinical examination and questionnaire of severity. Ten subjects with TMD (age 27.3 years, SD 7.8) and 10 control subjects without TMD, matched by age, were selected. Mandibular movements were recorded during free maximum mouth opening and closing (O-C) and unilateral, left and right, gum chewing. sEMG of the masseter and temporal muscles was performed during maximum teeth clenching either on cotton rolls or in intercuspal position, and during gum chewing. sEMG indices were obtained. Subjects with TMD, relative to control subjects, had lower relative mandibular rotation at the end of mouth opening, larger mean number of intersection between interincisal O-C paths during mastication and smaller asymmetry between working and balancing side, with participation beyond the expected of the contralateral muscles (P < 0.05, t-test). Overall, TMD subjects showed similarities with the control subjects in several kinematic parameters and the EMG indices of the static test, although some changes in the mastication were observed. (C) 2013 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 09/13525-9 - Mandibular kinematic and electromiographic analysis on oral motor function
Grantee:Cláudia Maria de Felício
Support type: Scholarships abroad - Research