A Study of Attrition Caused by Various Restorative Materials

各种修复材料引起的磨损的研究

• 批准号: 03670907
• 负责人: KOBAYASHI Kunihiko
• 金额: $ 1.34万
• 依托单位: HOKKAIDO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03670907/
• 关键词: Attrition; Abrasion; Teeth enamel; Opposite teeth; Restorative material; Composite resin; キャスタブル セラミックス; 歯科用合金

New types of restorative materials for posterior teeth, such as composite resins and castable ceramics, have been developed and applied clinically. It is required that the restorative material for posterior teeth does not abrade the opposed or proximal tooth, but wear off at the same degree as the enamel does. But in daily clinic, we have often seen the composite resin wore the opposed or proximal tooth substantially.The purposes of this study are1)The investigation of experimental condition that was similar to that in the oral cavity on the wear of the tooth enamel.2)The investigation of the influence of the filler contained in the composite resin on the wear of the tooth enamel.3)The development of the idea composite resin for the posterior teeth.From this study, the following conclusions can be made.1)We found that the experimental condition was near to the actual condition of the wear of enamel in the oral cavity. But there was a conciderable difference in wear of tooth enamel between composite resin vs.enamel and enamel vs.enamel, and the cause of this difference remains to be solved.2)As regards to this filler, the greater the filler content in resin and the larger the particle size, the more the enamel tends to wear.3)We could not develop the ideal composite resin for posterior teeth.

复合树脂、浇注陶瓷等新型后牙修复材料的开发和临床应用日益广泛。要求后牙修复材料不能磨损对牙或近牙，而应与牙釉质磨损程度相同。但在日常临床中，我们经常看到复合树脂严重磨损对牙或近牙。本研究的目的是：1)探讨与口腔相似的实验条件对牙釉质磨损的影响。2)研究复合树脂中所含填料对牙釉质磨损的影响。3)后牙新型复合树脂的研制。通过本研究，可以得出以下结论。1)我们发现实验条件接近口腔内牙釉质磨损的实际情况。但复合树脂对牙釉质和牙釉质对牙釉质的磨损有相当大的差异，造成这种差异的原因还有待解决。2)对于该填料，树脂中填料含量越大，粒径越大，牙釉质越容易磨损。3)目前尚不能研制出理想的后牙复合树脂。

项目成果

小林 國彦: "歯冠修復材による咬耗を想定した実験的研究 第3報 間接法用コンポジットレジンについて" 日本補綴歯科学会雑誌. 35(特別号). 73 (1991)

Kunihiko Kobayashi：“假设牙冠修复材料引起的咬合的实验研究第 3 部分：关于间接方法的复合树脂”日本修复医学会杂志 35（特刊）73（1991 年）。

Kunihiko KOBAYASHI et al.: "An Experimental Study of Attrition Caused by Various Restorative Matcrials-3rd Report. Composite Resins for Indirect Technique." J Jpn Prosthodol Soc. 35(85th Special Issue). 73 (1991)

Kunihiko KOBAYASHI 等人：“各种修复材料引起的磨损的实验研究 - 第三次报告。用于间接技术的复合树脂。”