Orellana M F, Nelson A E, Carey J P R, Heo G, Boychuk D G, Major P W
Orofacial Sciences, Division of Orthodontics, School of Dentistry, University of California San Francisco, San Francisco, CA 94143-0438, USA.
J Dent Res. 2008 Jun;87(6):532-6. doi: 10.1177/154405910808700607.
Much research has been devoted to the study of etched enamel, since it is critical to bonding. Currently, there are no precise data regarding the etched-enamel specific surface area. The aim of this study was to characterize, by two different methods, the surface of human dental enamel in vitro after being etched. It was hypothesized that differences would be observed between specimens in terms of specific surface area and grade of etching. Sixteen third molar enamel samples were etched for 30 sec with 37% phosphoric acid prior to being viewed by SEM. Etched enamel surfaces were graded according to the Galil and Wright classification. The total surface area of etched samples was determined by the BET gas absorption method. A substantial variability in total surface area was observed between and among samples. A Pearson's Correlation Coefficient showed a lack of relationship between etch pattern and total surface area.
由于酸蚀釉质对粘结至关重要，因此已有许多研究致力于对其进行研究。目前，尚无关于酸蚀釉质比表面积的确切数据。本研究的目的是通过两种不同的方法对体外酸蚀后的人牙釉质表面进行表征。研究假设是，在比表面积和酸蚀程度方面，各样本之间会观察到差异。16个第三磨牙釉质样本用37%的磷酸酸蚀30秒后，再用扫描电子显微镜观察。酸蚀后的釉质表面根据加利尔和赖特分类法进行分级。酸蚀样本的总表面积通过BET气体吸附法测定。样本之间和样本内部的总表面积均存在显著差异。皮尔逊相关系数显示，酸蚀模式与总表面积之间不存在相关性。
