Impact of sleep bruxism the masticatory muscles: evaluation electromyographic, ultrasound, bite force, masticatory function and quality of life

• Grant number: 12/10228-6
• Support type: Regular Research Grants
• Duration: April 01, 2013 - March 31, 2015
• Field of knowledge: Health Sciences - Dentistry - Dental Clinics
• Principal researcher: Simone Cecilio Hallak Regalo
• Grantee: Simone Cecilio Hallak Regalo
• Home Institution: Faculdade de Odontologia de Ribeirão Preto (FORP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
• Assoc. researchers: Marcelo Palinkas

Abstract

Sleep bruxism (SB) is considered a serious muscle disorder that can affect the quality of human life, characterized by signs and symptoms such as grinding and clenching of teeth during sleep, muscle fatigue, orofacial pain, masticatory muscle pain, fatigue, headache predisposing serious alterations of the masticatory system. This study aims to analyze the masseter and temporal muscles by means of electromyography and ultrasound; the maximum molar bite force and masticatory efficiency of healthy individuals and with sleep bruxism with muscle pain. Adult individuals are evaluated from the city of Ribeirão Preto and region, aged 18 to 45 years. The methodology used is the application of RDC / TMD, polysomnography to diagnose sleep bruxism and the system BiteStrip ® (Disposable Bruxism Test) classifying the severity of the disorder. Individuals will be divided into two groups: Group I - control and Group II - bruxism with muscle pain. After the diagnosis of bruxism, Group II will be subdivided into three subgroups by severity of sleep bruxism: 15 individuals with mild bruxism, 15 individuals with moderate bruxism and 15 individuals with severe bruxism. The electromyographic activity will be assessed using the Delsys electromyography. Muscle thickness will be analyzed by acquiring images of the masseter and temporal muscles at rest and maximal dental clenching using the Sono Site Titan portable ultrasound. The maximum molar bite force (right and left) values will be obtained using a digital dynamometer model IDDK (Kratos). Masticatory efficiency will be evaluated through the colorimetric method with the beads in habitual chewing, right and left unilateral chewing. In the literature there is no specific evaluation of this methodology applied to the sleep bruxism and the results will allow a full evaluation of the masticatory system in terms of morphological and functional changes of individuals with sleep bruxism with muscle pain. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

PALINKAS, M.; SEIDEL COSCARELLA, L.; HIRONO HOTTA, T.; BATAGLION, C.; DE LUCA CANTO, G.; CORREA DE MELLO, E.; NAPOLITANO GONCALVES, L. M.; SIESSERE, S.; HALLAK REGALO, S. C. Influence of sleep bruxism severity on masticatory efficiency: electromyographic analysis. ARCHIVES ITALIENNES DE BIOLOGIE, v. 157, n. 2-3, p. 59-65, SEP 2019. Web of Science Citations: 0.

PALINKAS, M.; SEIDEL COSCARELLA, L.; HIROMO HOTTA, T.; BATAGLION, C.; DE LUCA CANTO, G.; CORREA DE MELLO, E.; NAPOLITANO GONCALVES, L. M.; SIESSERE, S.; HALLAK REGALO, S. C. Influence of sleep bruxism severity on masticatory efficiency: electromyographic analysis. ARCHIVES ITALIENNES DE BIOLOGIE, v. 157, n. 1, p. 59-65, 2019. Web of Science Citations: 0.

PALINKAS, MARCELO; SEMPRINI, MARISA; ESPIR FILHO, JOAO; CANTO, GRAZIELA DE LUCA; REGALO, ISABELA HALLAK; BATAGLION, CESAR; MENDES RODRIGUES, LAISE ANGELICA; SIESSERE, SELMA; HALLAK REGALO, SIMONE CECILIO. Nocturnal sleep architecture is altered by sleep bruxism. ARCHIVES OF ORAL BIOLOGY, v. 81, p. 56-60, SEP 2017. Web of Science Citations: 7.