不同浓度-时间点氢氟酸蚀刻机加工瓷面对瓷与牙釉质的整体粘结抗剪强度的影响  

Shear Bond Test of HF Acid Etching Machinable Porcelain Bonded to Enamel with Different Concentration and Disposing Time

作　　者：于海洋[1] 杜传诗[1] 巢永烈[1] 郑弟泽[1] 

机构地区：[1]华西医科大学口腔医学院

出　　处：《华西口腔医学杂志》1998年第2期169-171,共3页West China Journal of Stomatology

摘　　要：选择３０个氢氟酸（ＨＦ酸）浓度－时间搭配点，测试瓷贴面复合体整体粘结抗剪强度。结果表明：ＨＦ酸蚀刻可增加陶瓷与牙釉质间粘结强度，ＨＦ酸浓度－时间的最佳搭配点为：２．５％－５．０ｍｉｎ；５．０％－５．０ｍｉｎ；７．５％－２．５ｍｉｎ；１０．０％－１．０ｍｉｎ；１５．０％－０．５ｍｉｎ。After HF acid etching under 5 different HF concentrations and 6 exposing times, shear bonding strength of porcelain to enamel were tested. The results showed that HF acid etching technique had a positive influence on the bonding strength of porcelain to enamel. The most favorable concertrationtime groups were 2.5%5.0 min, 5.0%5.0 min,7.5%2.5 min,10.0%1.0 min,15.0%0.5 min, and the debonding type of porcelainresinenamel composite body was mixed debonding.

关 键 词：蚀刻 粘结 抗剪强度 牙釉质 瓷面 机加工陶瓷 

分 类 号：R783.2[医药卫生—口腔医学] R783.1[医药卫生—临床医学]