アブストラクト（29巻1号：The Bulletin of Kanagawa Dental College）

The Bulletin of Kanagawa Dental College

English

Title　： A pilot study on masticatory muscles activities during grinding movements in occlusion with different guiding areas on working side
Subtitle　： Selective Proceedings of 35th General Meeting of Kanagawa Odontological Society, 2000
Authors　： Katsushi Tamaki, Norio Hori, Motoki Fujiwara, Tadahiro Yoshino, Minoru Toyoda, Sadao Sato
Authors（kana）　：
Organization　： Department of Prosthodontics, Department of Orthodontics, Kanagawa Dental
Journal　： The Bulletin of Kanagawa Dental College
Volume　： 29
Number　： 1
Page　： 50-51
Year/Month　： 2001 / 3
Article　： Report
Publisher　： Kanagawa Odontological Society
Abstract　： [Abstract] The purpose of this study was to investigate masticatory muscles activities during grinding movement in occlusion with different guiding areas on working side. A subject who was aged 25 years female was selected and agreed with our purpose of this study. Metal guidance devices, which were onlay type from canine to second molar tooth for grinding movement were made by means of the value of sagittal condylar inclination (SCI) to axis orbital plane (AOP) using measuring system (CADIAX(R)) of condylar movement. Muscle activities of masseter and temporalis during grinding movement on each metal guidance were measured by surface electromyography (EMG). The results showed that EMG activities of those muscles per duration times increased on gromding movements from canine to molar. Therefore, it was suggested that extended guidance area to the posterior teeth indicated a possibility of increasing masticatory muscles activities during dynamic grinding movement.
Practice　： Dentistry
Keywords　： muscle activity, grinding movement, canine guidance occlusion, group function occlusion, surface electromyography