Park J H, Imai Y
Department of Conservative Dentistry, School of Dentistry, Kyungpook National University, Taegu, Korea.
Dent Mater J. 1995 Jun;14(1):14-22. doi: 10.4012/dmj.14.14.
The purpose of this study was to examine the feasibility of a conditioner for treating enamel and dentin simultaneously for MMA-TBB resin bonding. Various phosphoric acid solutions containing copper salts were prepared and used as conditioners before bonding MMA-TBB resin to bovine teeth. Their effects on the surface morphology and bonding were studied by scanning electron microscopy and tensile bond strength testing. The concentrations of phosphoric acid as well as copper salts therein affected the bond strength to dentin. Ten percent phosphoric acid containing 3% copper (II) chloride appeared optimal for treating dentin and was significantly effective in improving the bond strength compared with phosphoric acid alone. This conditioner was applicable also to enamel without any adverse effect on the bond strength. Therefore, enamel and dentin may effectively be treated simultaneously with this conditioner before bonding of MMA/TBB-based resin.
本研究的目的是检验一种用于甲基丙烯酸甲酯-三丁基硼（MMA-TBB）树脂粘结时同时处理牙釉质和牙本质的调节剂的可行性。制备了各种含铜盐的磷酸溶液，并在将MMA-TBB树脂粘结到牛牙之前用作调节剂。通过扫描电子显微镜和拉伸粘结强度测试研究了它们对表面形态和粘结的影响。磷酸及其所含铜盐的浓度影响与牙本质的粘结强度。含3%氯化铜（II）的10%磷酸似乎是处理牙本质的最佳选择，与单独使用磷酸相比，在提高粘结强度方面具有显著效果。这种调节剂也适用于牙釉质，对粘结强度没有任何不利影响。因此，在基于MMA/TBB的树脂粘结之前，使用这种调节剂可以有效地同时处理牙釉质和牙本质。
