側方滑走運動による上下顎大臼歯間の接触間隙の変化

• 渡部 厚史

  新潟大学大学院歯科補綴学専攻

書誌事項

タイトル別名

• Changes of Interocclusal Contacts and Clearance between Opposing Upper and Lower Molars during Lateral Excursions.

抄録

The purpose of this study was to elucidate the interocclusal clearance between opposing upper and lower molars on the working side during lateral excursions. Three-dimensional scannings were made of both the shape of occlusal surfaces and jaw movements, and the data of the occlusal shape of the upper first molar was used to divide the tooth into 6 sections on the computer. The analytic parameters employed are the area of the region on the sections of the upper first molar, where the distance from its counterpart was equal to less than 0.3 mm (contact region) and 1.0mm (near contact region) in the intercuspal position and the four lateral positions. The aspect of changes of two regions was observed for the different sections.<BR>The results were as follows As the mesio-palatal section of the upper molar became separated from its counterpart more rapidly than any other section, the closing space, which opens in the mesio-palatal direction, was found between the opposing upper and lower molars on the working side during lateral movement. This is called the Squeezing Room and it is considered to be a place for crushing and compressing the food during mastication, and controls the flow of food on the occlusal surface.

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 (3), 517-529, 1995

  社団法人 日本補綴歯科学会

キーワード

• interocclusal clearance
• occlusal surfaces
• mastication
• lateral excursions
• Squeezing Room

詳細情報

• CRID: 1390282679386729472
• NII論文ID: 110003859006
• NII書誌ID: AN00197911
• DOI: 10.2186/jjps.39.517
• ISSN: 1883177X
• ISSN: 03895386
• ISSN: http://id.crossref.org/issn/03895386
• Web Site: http://www.jstage.jst.go.jp/article/jjps1957/39/3/39_3_517/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/1996029282
• 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