窝沟封闭剂中树脂突的长度：一体化自酸蚀粘结剂与磷酸酸蚀的比较
Length of resin tags in pit-and-fissure sealants: all-in-one self-etching adhesive vs phosphoric acid etching.
作者信息
dos Santos Karina Tonini, Sundfeld Renato Herman, Garbin Cléa Adas Saliba, de Alexandre Rodrigo Sversut, Sundefeld Maria Lúcia Marçal Mazza, Ceolim Bruna Nakae
机构信息
Department of Community Dentistry, Araçatuba Dental School, Universidade Estadual Paulista, Araçatuba, Brazil.
出版信息
Compend Contin Educ Dent. 2008 Apr;29(3):186-92.
PURPOSE
To investigate the penetration (tags) of adhesive materials into enamel etched with phosphoric acid or treated with a self-etching adhesive, before application of a pit-and-fissure sealant.
MATERIALS AND METHODS
The sample comprised six study groups with six specimens each. Before pit-and-fissure sealing with the materials Clinpro SealantTM (Groups I and II), Vitro Seal ALPHA (Groups III and IV) and Fuji II LC (Groups V and VI), the teeth in Groups I, III, and V were etched with 35% phosphoric acid for 30 seconds. Teeth in Groups II, IV, and VI received application of the self-etching adhesive Adper Prompt L-Pop. The treated teeth were sectioned buccolingually, ground to 100-microm thickness, decalcified, and analyzed by conventional light microscopy at 400x magnification.
RESULTS
The teeth etched with phosphoric acid exhibited significantly greater penetration than specimens treated with self-etching adhesive.
CLINICAL SIGNIFICANCE
When compared with enamel treated with a self-etching adhesive, the penetration (tags) of adhesive materials into enamel was greater when applied on enamel etched with phosphoric acid.
目的
在应用窝沟封闭剂之前，研究粘结材料在经磷酸酸蚀或用自酸蚀粘结剂处理过的牙釉质中的渗入情况（微渗漏）。
材料与方法
样本包括六个研究组，每组六个样本。在用Clinpro SealantTM材料（第一组和第二组）、Vitro Seal ALPHA材料（第三组和第四组）和Fuji II LC材料（第五组和第六组）进行窝沟封闭之前，第一组、第三组和第五组的牙齿用35%的磷酸酸蚀30秒。第二组、第四组和第六组的牙齿使用自酸蚀粘结剂Adper Prompt L-Pop进行处理。将处理后的牙齿沿颊舌方向切片，磨至100微米厚度，脱钙，然后在400倍放大倍数下通过传统光学显微镜进行分析。
结果
经磷酸酸蚀的牙齿显示出比用自酸蚀粘结剂处理的样本有明显更大的渗入。
临床意义
与用自酸蚀粘结剂处理的牙釉质相比，当粘结材料应用于经磷酸酸蚀的牙釉质时，其在牙釉质中的渗入（微渗漏）更大。
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