alexa Electrognathographic Analysis of Jaw Movements during Speech: An Exploratory Study
ISSN: 2376-0311

JBR Journal of Clinical Diagnosis and Research
Open Access

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Research Article

Electrognathographic Analysis of Jaw Movements during Speech: An Exploratory Study

de Carvalho KHT*, Junqueira Zuim PR, dos Santos DM, de Caxias FP, Goiato MC and Filho HG

Department of Dental Materials and Prosthodontics, Aracatuba Dental School, Sao Paulo State University, Aracatuba, Sao Paulo, Brazil

*Corresponding Author:
Karina Helga Turcio de Carvalho
Department of Dental Materials and Prosthodontics
Aracatuba Dental School
Sao Paulo State University
Aracatuba, Sao Paulo
Tel: 183-636-3291
E-mail: [email protected]

Received date: May 27, 2016; Accepted date: June 17, 2016; Published date: June 23, 2016

Citation: Carvalho KHT, Zuim PRJ, Santos DM, Caxias FP, Goiato MC, et al. (2016) Electrognathographic Analysis of Jaw Movements during Speech: An Exploratory Study. J Clin Diagn Res 4: 126. doi:doi: 10.4172/2376-0311.1000126

Copyright: © 2016 de Carvalho KHT et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



The purpose of the study was to compare the mandibular movement during speech in patients with temporomandibular disorder (muscular TMD) and in asymptomatic volunteers using computerized electrognathography. Twelve asymptomatic volunteers (Group I control group) and 12 patients with muscular TMD (Group II) were selected. Both groups were subjected to a phonetic test and evaluated according to: maximum mandibular opening amplitude (mm), mandibular velocity during opening and closing (mm/sec) and maximum lateral deviation to both right and left sides (mm). Regarding to the mandible movements both frontal and horizontal planes, as well as the mandible deviations, there was no difference between Group I and Group II for all parameters analyzed. Regarding to the mandible movements in frontal and horizontal planes as well as the mandible deviations, there was no difference between group I and group II (muscular TMD and Asymptomatic). There was a statistical difference for the maximum mandibular velocity during opening and closing during speech in symptomatic patients.


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