Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Identification of the occurrence and pattern of masseter muscle activities during sleep using EMG and accelerometer systems | Head Face Medicine BioMed Central Open Access Methodology Identification of the occurrence and pattern of masseter muscle activities during sleep using EMG and accelerometer systems Hidehiro Yoshimi1 Kenichi Sasaguri1 Katsushi Tamaki2 and Sadao Sato 1 Address Department of Craniofacial Growth and Development Dentistry Research Institute of Occlusion Medicine Research Center of Brain and Oral Science Kanagawa Japan and 2Oral and Maxillofacial Rehabilitation Kanagawa Dental College 82 Inaoka-Cho Yokosuka Kanagawa Japan Email Hidehiro Yoshimi - info@ Kenichi Sasaguri - sasakuri@ Katsushi Tamaki - tamakika@ Sadao Sato - satos@ Corresponding author Published II February 2009 Received 27 June 2008 I o r I mzzi-rzz IZAXZ r 1 Accepted 11 February 2009 Head Face Medicine 2009 5 7 doi 1746-160X-5-7 This article is available from http content 5 1 7 2009 Yoshimi et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background Sleep bruxism has been described as a combination of different orofacial motor activities that include grinding clenching and tapping although accurate distribution of the activities still remains to be clarified. Methods 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. Results The new system could easily distinguish the different patterns of bruxism movement of the mandible and the body movement. Results showed that grinding
