アブストラクト（20巻3号：神奈川歯学）

神奈川歯学

Japanese

Title　： 筋電図平均発射間隔測定時における咬筋の緊張保持に対する考察
Subtitle　： 原著
Authors　： 金安英治, 城所善夫, 倉林典之, 松尾悦郎, 高木玉喜*, 梶原景正*, 小松原淳一*, 菅谷英一*, 小川優司**, 熊田玲子**, 出口真二**, 堀俊雄**
Authors（kana）　：
Organization　： 神奈川歯科大学補綴学教室第I講座, *神奈川歯科大学生理学教室, **神奈川歯科大学保存学教室第II講座
Journal　： 神奈川歯学
Volume　： 20
Number　： 3
Page　： 402-409
Year/Month　： 1985 / 12
Article　： 原著
Publisher　： 神奈川歯科大学学会
Abstract　： 「緒言」Adrian and Bronkが, 同針型針電極を用いて筋活動を筋電図学的にとらえ, それをもとに, 時実, 津山らが筋電図の生理学的意義を明らかにした. 最近, エレクトロニクスの発達に伴い筋電図測定機器の測定精度の向上, 小川のコンピューターによる筋電図波形分析, 鮫島の表面筋電図の周波数分析的データ処理など筋電図形の解析に種々な試みと研究が, なされてきている. 歯学領域においては, Derry and Harris, Hichey, Losndquiet, 本邦においては,河村, 三浦, 三谷, 津留らが筋電図を応用し, 下顎安静位, 中心位, 前記以外の顎位および咀嚼筋筋電図の活動様相等を明らかにしてきた. これら一連の研究, さらには筋電図形に関する多くの研究を土台として, 矯正学における不正咬合等, 歯周病におけるブラキシズム等, 口腔外科の関節疾患および補綴学の咬合採得等の諸問題解明の資料として筋電図形は十分に役立ちはじめている.
Practice　： 歯科学
Keywords　：

English

Title　： Considerations on Maintaining Muscle Tension During Measure of Mean EMG Burst Intervals
Subtitle　： Original article
Authors　： Eiji KANAYASU, Yoshio KIDOKORO, Noriyuki KURABAYASI, Etsuro MATSUO, Tamaki TAKAGI*, Kagemasa KAJIWARA*, Junichi KOMATSUBARA*, Eiichi SUGAYA*, Yuji OGAWA**, Reiko KUMATA**, Shinji DEGUCHI**, Toshio HORI**
Authors（kana）　：
Organization　： Ist Department of Prostheti Dertistry, Kanagawa Dental College, *Department of Phsiology, Kanagawa Dental College, **Department of Periodontic Dentistry, Kanagawa Dental College
Journal　： Kanagawa Shigaku
Volume　： 20
Number　： 3
Page　： 402-409
Year/Month　： 1985 / 12
Article　： Original article
Publisher　： Kanagawa Odontological Society
Abstract　： Research in dentistry has clarified the mandibular rest position, centric occlusion and other mandibular positions in addition to making possible burst wave analysis in electromyograms(EMG)of the masticatory muscles. The experiment performed by the authors made use of surface electrodes which are suited to clinical application as well as a computer to analyze and correlate the t-S relation. Findings could be quickly displayed on a cathode ray tube. The aim of the study was to examine from all angles whether or not it is actually possible to include such a procedure in clinical practice as one method for testing, diagnosis and determining the effects of treatment. Results showed that this method permits on objective grasp of occlusal dysfunctions which up to now could be sensed only subjectively. It was furthermore discovered that it was possible with this furthermore discovered that it was possible with this method to give a visual display of the situation to doctor and patient. The authors performed the experimend described below concerning materials suited for maintaining masticatory muscle tension and gained a number of insights which are reported on here. The authors made use of surface electrodes, selected materials suited to maintaining masticatory muscle tension, showed patients the three stages in the state of occlusion and made computer analysis of masseter muscle EMG's in addition to analyzing the mean EMG burst interval and stadard divsion for these EMG's. 1) When the mean EMG burst interval increased, the standard division increased approximately twice as much as that reported by Tokizane, Miura and Yamada. 2) As a device for maintaining muscle tension, a resin block controlling mandibular side shift showed better results than either wax or a wooden stick. 3) It was discovered that the patient's mental calmness was also necessary for retaining tension in the masticatory muscles. Results shaw that it would be possible to apply this method to diagnosis in clinical dentistry as well as in determining the results of treatment.
Practice　： Dentistry
Keywords　：