総義歯装着者のそしゃく筋断面積の減少に影響を及ぼす因子

• 田邊 忠輝

  岩手医科大学歯学部大学院歯学研究科歯科補綴学専攻

書誌事項

タイトル別名

• Factors Which Affect of Masticatory Muscle Cross-sections in Complete Denture Wearers.

抄録

Many authors attempt to calculate muscle force per unit of cross-section of jaw muscles. However, nothing is known in regard to reduction of the size of jaw muscles in elderly edentulous patients. The purpose of this study was to determine whether or not tooth loss and aging affect the reduction of the jaw muscle cross-section in elderly edentulous patients. Thirty-three selected subjects were 11 young dentate, 11 elderly dentate and 11 elderly edentulous who were the same age as elderly dentate, and magnetic resonance imaging, cephalometric radiography through EMG pattern was used in relation to facial morphology.<BR>There was a significant reduction of the cross-sectional area in the edentulous group, and EMG activity showed a significant reduction in the elderly dentate and especially edentulous groups. The study showed a correlation between cross-sectional area and EMG activity. However, only the edentulous group showed no correlation concerning the posterior temporal muscle.<BR>Tooth loss may affects a reduction in the cross-section of masticatory muscle. Both tooth loss and aging may affect muscle activity in relation to facial morphology.

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 39 (2), 418-430, 1995

  社団法人 日本補綴歯科学会

キーワード

• jaw muscle cross section
• aging
• tooth loss
• magnetic resonance imaging
• EMG

詳細情報

• CRID: 1390001204409945216
• NII論文ID: 110003858389
• NII書誌ID: AN00197911
• DOI: 10.2186/jjps.39.418
• ISSN: 1883177X
• ISSN: 03895386
• Web Site: http://www.jstage.jst.go.jp/article/jjps1957/39/2/39_2_418/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/1995232833
• 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