Department of Operative Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8525, Japan.
Dent Mater J. 2013;32(3):420-4. doi: 10.4012/dmj.2012-199.
It is known that chlorhexidine (CHX) does not inhibit micro-tensile bond strengths (MTBS) when it is used in etch-and-rinse adhesives. In that technique, CHX is applied to dentin as a primer after phosphoric acid-etching before bonding with Single Bond. It would be more convenient if it is possible to incorporate CHX into the adhesive. The purpose of this study was to compare the MTBS and the FT-IR percent conversion of an all-in-one self-etching adhesives contained varying concentration of CHX. Extracted human third molars were bonded with a control all-in-one adhesive or experimental versions containing 0.5, 1, 2 or 5% CHX. The MTBS and the percent conversion of experimental adhesives containing up to 1% CHX were not significantly CHX-free control adhesives. However, addition of 2 or especially 5% CHX experimental adhesives produced significant reductions in both the MTBS and the percent conversion.
已知，在使用酸蚀-冲洗型粘结剂时，洗必泰（CHX）并不会抑制微拉伸粘结强度（MTBS）。在这种技术中，CHX 被应用于牙本质上，作为磷酸酸蚀后用 Single Bond 粘结前的底漆。如果能将 CHX 整合到粘结剂中，将会更加方便。本研究旨在比较含有不同浓度 CHX 的全酸蚀自粘结剂的 MTBS 和 FT-IR 转化率。将提取的人第三磨牙用对照全酸蚀粘结剂或含有 0.5、1、2 或 5%CHX 的实验性版本进行粘结。含有高达 1%CHX 的实验性粘结剂的 MTBS 和转化率与无 CHX 的对照粘结剂相比并无显著差异。然而，添加 2%或特别是 5%CHX 的实验性粘结剂会导致 MTBS 和转化率明显降低。
