アブストラクト（36巻2号：The Bulletin of Kanagawa Dental College）

The Bulletin of Kanagawa Dental College

English

Title　： Development of Sleep Bruxism Analyzing System using EMG and Accelerometer
Subtitle　： ORIGINAL ARTICLES
Authors　： Hidehiro Yoshimi, Koichi Sugimoto, Kenichi Sasaguri, Sadao Sato
Authors（kana）　：
Organization　： Department of Craniofacial Growth and Development Dentistry, Division of Orthodontics, Kanagawa Dental College
Journal　： The Bulletin of Kanagawa Dental College
Volume　： 36
Number　： 2
Page　： 63-68
Year/Month　： 2008 / 9
Article　： Original article
Publisher　： Kanagawa Odontological Society
Abstract　： [Abstract] Degenerative oral diseases such as occlusal trauma, temporomandibular dysfunction, abfraction and tooth migration are related to excessive biomechanical loads exerted by strong masticatory muscle activities during bruxism. The diagnosis and treatment planning of bruxism is becoming more relevant in dentistry, due to an increase in degenerative oral diseases. In this study, we developed a new system for analyzing sleep bruxism to examine the muscle activities and mandibular movement patterns during sleep bruxism. The system consisted of a 2-axis accelerometer, electroencephalography and electromyography. Nineteen healthy volunteers were recruited and screened to evaluate sleep bruxism in the sleep laboratory. The results indicate that there are considerable variations in sleep bruxism activity among individuals and that bruxism activity consists predominantly of grinding and clenching. Both clenching and grinding were related to sleep stage 2 with approximately 40% of occurrence, and 22-25% of bruxism activities were associated with microarousal.
Practice　： Dentistry
Keywords　： Sleep bruxism, Accelerometer, Grinding