Watanabe I, Nakabayashi N, Pashley D H
Division of Organic Materials, Tokyo Medical and Dental University, Japan.
J Dent Res. 1994 Jun;73(6):1212-20. doi: 10.1177/00220345940730061301.
Increasingly higher concentrations of Phenyl-P in 30% HEMA were used as dentin conditioners to improve the bonding of adhesive resins to smear layers. The maximum bond strength (10.4 MPa) was obtained at a concentration of 20% Phenyl-P. Transmission electron microscopy of fractured, lightly smeared, and compactly smeared dentin demonstrated that 20% Phenyl-P in 30% HEMA demineralized the dentin surface by partially dissolving mineral crystals from around collagen. When applied to smear layers, this resin system demineralized the smear layer and incorporated it into the applied resin which penetrated a short distance into the underlying dentin, thereby creating a hybrid layer that contained the original smear layer. This single-step conditioner/primer offers several advantages over previous bonding systems by permitting a single solution to serve as both a conditioner and a primer.
在30%甲基丙烯酸羟乙酯（HEMA）中使用浓度越来越高的苯基膦酸（Phenyl - P）作为牙本质调节剂，以改善粘结性树脂与玷污层的粘结。在苯基膦酸浓度为20%时获得了最大粘结强度（10.4兆帕）。对断裂的、轻度玷污的和紧密玷污的牙本质进行透射电子显微镜观察表明，30% HEMA中的20%苯基膦酸通过部分溶解胶原周围的矿物晶体使牙本质表面脱矿。当应用于玷污层时，该树脂体系使玷污层脱矿并将其融入所施加的树脂中，该树脂向下方牙本质内渗透一小段距离，从而形成一个包含原始玷污层的混合层。这种单步调节剂/底漆比以前的粘结系统具有几个优点，因为它允许单一溶液同时用作调节剂和底漆。
