床用硬質レジン歯に関する基礎的研究 : 第2報臼歯の金属材に対する耐摩耗性について

概要

論文の詳細を見る
Hight-strength denture teeth (hereafter referred to as HS teeth) were developed to improve hardness and wear resistance of the conventional plastic denture teeth, while retaining their feature of easy occlusal adjustment. The objective of this study was to evaluate abrasive wear resistance of HS posterior teeth. We conducted the two-body abrasive wear test and measured teeth wear depth using eight types of posterior artificial teeth as one body, measured metal wear volume using Pd-Au-Ag alloy plates as another one body. The result of the two-body abrasion wear test revealed that the HS teeth have 4.7 times grater abrasive wear resistance than conventinal plastic teeth, 0.7 times grater than porcelain tooth, 8.3 times grater than metal tooth. It was also found out that metal wear contact with HS teeth is smallest abrasion wear volume compare with another metal wear.
日本補綴歯科学会の論文
1991-04-01