AN IN VIVO EVALUATION OF TWO SELF-ETCHING RESIN COMPOSITE BONDING AGENTS

这个子项目是利用由NIH/NCRR资助的中心拨款提供的资源的许多研究子项目之一。子项目和调查员(PI)可能从另一个NIH来源获得了主要资金，因此可能会出现在其他CRISE条目中。列出的机构是针对中心的，而不一定是针对调查员的机构。位于牙龈边缘的病变一般分为龋性和非龋性两种。龋齿病变有细菌病因，而非龋齿病变的病因是多因素的，范围从咬合(非龋齿病变)到刷牙(磨损)到化学(侵蚀)。有几种材料可以用来修复这些损伤：复合树脂；传统的和树脂修饰的玻璃离子；以及复合体。在美国，复合树脂修复剂是这种情况下使用的主要修复材料。由于复合树脂不是粘结剂，它们必须用粘结剂粘结到牙齿结构上。有几种粘结剂可供选择。这项研究将比较两种粘结系统：全酸蚀粘结剂和较新的自酸蚀粘结剂在三年内的临床效果。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Lesions located at the gingival margin of teeth are generally classified into carious and non-carious. Carious lesions have a bacterial etiology while the etiology of the non-carious lesion is multifactorial and ranges from occlusial (abfraction lesions) to tooth brushing (abrasion) to chemical (erosion). Several materials are used to restore these lesions: composite resins; conventional and resin modified glass ionomers; and compomers. In the United States, composite resin restorative are the primary restorative material used in this situation. Since composite resins are not adhesive, they must be bonded to tooth structure with bonding agents. Several bonding agents are available. This investigation will compare two bonding systems: a total etch and a newer self-etching bonding agent for their clinical effectiveness over a three year period.