White S N, Yu Z
Department of Restorative Dentistry, University of Southern California, School of Dentistry, Los Angeles.
J Prosthet Dent. 1992 Jun;67(6):782-5. doi: 10.1016/0022-3913(92)90582-u.
This study determined and compared the film thicknesses of new adhesive luting agents. The method was in compliance with American National Standards Institution/American Dental Association (ADA) Specification No. 8 for zinc phosphate cement. Each of the 20 materials tested was manipulated exactly as described in the manufacturers' instructions. An electronic gauge with an accuracy of 0.5 micron was recalibrated after each recording, and each luting agent was measured 10 times. The mean film thickness and standard deviation were calculated for each luting agent; an analysis of variance and a multiple comparison test were also performed. Nine materials satisfied the ADA type I specification for film thicknesses less than 25 microns, and these included a hydroxyapatite cement, glass ionomer cements, zinc phosphate cements, and polycarboxylate cements. Five other materials met the ADA type II specification for film thicknesses of less than 40 microns, and these included a glass ionomer cement, a resinous cement, a zinc phosphate cement, and glass ionomer-resinous hybrids. Six resinous cements recorded film thicknesses greater than 40 microns, and suggestions were made regarding future development and research.
本研究测定并比较了新型粘结水门汀的薄膜厚度。该方法符合美国国家标准学会/美国牙科协会（ADA）第8号磷酸锌水门汀规范。所测试的20种材料中的每一种都严格按照制造商说明书中的描述进行操作。每次记录后，对精度为0.5微米的电子测量仪重新进行校准，每种粘结水门汀测量10次。计算每种粘结水门汀的平均薄膜厚度和标准差；还进行了方差分析和多重比较测试。九种材料满足ADA I型规范要求，即薄膜厚度小于25微米，这些材料包括羟基磷灰石水门汀、玻璃离子水门汀、磷酸锌水门汀和聚羧酸锌水门汀。另外五种材料符合ADA II型规范要求，即薄膜厚度小于40微米，这些材料包括一种玻璃离子水门汀、一种树脂水门汀、一种磷酸锌水门汀以及玻璃离子-树脂混合水门汀。六种树脂水门汀记录的薄膜厚度大于40微米，并针对未来的发展和研究提出了建议。
