Brockmann S L, Scott R L, Eick J D
Quintessence Int. 1990 Mar;21(3):201-6.
The purpose of this study was to evaluate the enamel-sealant interface following the use of standard sealant placement techniques and an air-polishing system. Twenty-five caries-free premolars were extracted and stored in distilled water for 2 days. Five teeth were randomly assigned to each of five treatment groups. The occlusal surface was (1) air polished for 20 seconds, (2) cleaned with pumice for 20 seconds, or (3) not cleaned. Following treatment, 35% orthophosphoric acid was applied for 60 seconds. In two control groups, the acid-etching procedure was eliminated, and one group (4) was air polished for 20 seconds, while the other group (5) was not cleaned. Tinted self-curing sealant was applied to the entire occlusal surface of each tooth. Following the treatment, scanning electron photomicrographs were taken at X 1000 magnification. To evaluate the enamel-resin interface, the number of resin tags were counted by one precalibrated rater. A statistically significant difference was found among the treatment groups and the control groups. Air polishing combined with acid etching resulted in an improved surface for resin wetting as determined by the number of resin tags formed; however, the differences among the treatment groups were not large enough to be statistically significant.
本研究的目的是评估使用标准窝沟封闭剂放置技术和空气抛光系统后牙釉质与窝沟封闭剂的界面情况。拔除25颗无龋的前磨牙并在蒸馏水中保存2天。将五颗牙齿随机分配到五个治疗组中的每一组。咬合面分别进行如下处理：(1) 空气抛光20秒；(2) 用浮石清洁20秒；或(3) 不进行清洁。处理后，应用35%的正磷酸60秒。在两个对照组中，省去酸蚀步骤，一组（4）进行20秒空气抛光，另一组（5）不进行清洁。将有色自凝窝沟封闭剂应用于每颗牙齿的整个咬合面。处理后，以1000倍放大倍数拍摄扫描电子显微镜照片。为评估牙釉质-树脂界面，由一名预先校准的评分者计算树脂突的数量。在治疗组和对照组之间发现了统计学上的显著差异。通过形成的树脂突数量确定，空气抛光与酸蚀相结合可改善树脂湿润的表面；然而，各治疗组之间的差异不够大，无统计学意义。
