内側翼突筋に関する筋電図学的検討　第２報　　こう合支持部位の相違が閉口筋に及ぼす影響

• 岡部 良博

  東京医科歯科大学歯学部補綴学第一講座

• 藍 稔

  東京医科歯科大学歯学部補綴学第一講座

• 屋嘉 智彦

  東京医科歯科大学歯学部補綴学第一講座

• 西山 暁

  東京医科歯科大学歯学部補綴学第一講座

• 佐藤 雅之

  東京医科歯科大学歯学部補綴学第一講座

書誌事項

タイトル別名

• EMG Activity of the Human Medial Pterygoid Muscle in Relation to the Other Jaw Muscles. Part 2. Effect of Changing Occlusal Bite Positions on the Correlation between the Medial Pterygoid Muscle and the Other Closing Muscle Activity.
• Part 2: Effect of Changing Occlusal Bite Positions on the Correlation between the Medial Pterygoid Muscle and the Other Closing Muscle Activity
• 第2報咬合支持部位の相違が閉口筋に及ぼす影響

抄録

This study was conducted to investigate the muscle activity of the medial pterygoid, the superficial masseter and the anterior temporal muscles when two bite forces (49 N and 147 N) were exerted on different teeth. The subjects were instructed to perform isometric muscle contractions on either the right or left first premolar or second molar. Simultaneously, the EMG activity of the muscles was registered using subcutaneous needle electrodes.<BR>The results were as follows:<BR>1. The change of the bite-point location affected the EMG activity of all the muscles. Although the occlusal bite force was altered from 49 N to 147 N, various patterns in each muscle activity at each bite location were almost consistent.<BR>2. The largest activity was observed in the medial pterygoid and masseter muscles on the contralateral first premolar, while that of the temporal muscles was on the ipsilateral first premolar. Clenching on one first premolar compared with the other first premolar resulted in a significant increase in the activity of the working-side temporal muscle.<BR>3. The bite-point location being changed from right second molar to various other teeth, at a 49 N bite force the right medial pterygoid muscle had a significant correlation between the right or left masseter and right temporal muscles. At a 147 N bite force the medial pterygoid muscle significantly correlated to ipsilateral masseter muscle.

収録刊行物

• 日本補綴歯科学会雑誌

  日本補綴歯科学会雑誌 43 (4), 681-688, 1999

  社団法人 日本補綴歯科学会

キーワード

• the medial pterygoid muscle
• isometric muscle contraction
• subcutaneous needle electrodes
• occlusal bite force
• bite-point location

詳細情報

• CRID: 1390001204408257024
• NII論文ID: 10008174057
• NII書誌ID: AN00197911
• DOI: 10.2186/jjps.43.681
• ISSN: 1883177X
• ISSN: 03895386
• Web Site: http://www.jstage.jst.go.jp/article/jjps1957/43/4/43_4_681/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2000046406
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可