並列タイトル等咬筋筋電図を用いた日中覚醒時ブラキシズム評価に必要な最小測定時間に関する検討
一般注記Objective Assessments of diurnal awake bruxism (d-AB) by using masseteric electromyogram (EMG) during various lengths of measurement time within a day were examined as the first step of research to clarify the minimum measurement time required for assessment of d-AB by subject-unit. Methods Subjects were 33 outpatients. Assessment of d-AB by EMG during partial measurement time (PMT) with durations ranging from 30 minutes to 6 hours was compared with that during total measurement time (TMT) used as the reference standard. Results No significant difference was found between TMT data and each PMT data. There were significant correlations in all combinations between TMT data and each PMT data. Accuracy was 0.909 or more during 2.5 h or longer. Discussion The results suggested that the tendency of daytime muscle activity in one day can be assessed even by using masseteric EMG data obtained during a relatively short measurement time.
(主査) 教授 山口 泰彦, 教授 横山 敦郎, 教授 舩橋 誠
歯学研究科(口腔医学専攻)
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