论文部分内容阅读
近年来,在正畸治疗中已较普遍地采用直接粘接附件于牙面上的方法。直接粘接法效果的好坏,取决于粘结剂在硬化前渗入蚀刻过的釉质缝隙中的能力,以及粘结剂本身的强度。因为目前粘接的性质多是机械的结合;仅报导过用三正丁基硼烷的衍生物作催化剂的甲基丙烯酸酯类粘结剂,可与牙质有部分化学结合。但是这类材料在牙面上的实际应用中,同样采用酸蚀刻牙釉表面的方法。酸蚀刻与粘接的实质:用粘结剂粘接附件之前,牙釉表面的粘接区要用酸进行腐蚀脱钙,酸蚀的结果,釉柱周围脱钙较釉柱中心脱钙为多,以致形成牙釉表面的微小
In recent years, orthodontic treatment has been more commonly used in the direct attachment of the tooth surface method. The effectiveness of direct bonding depends on the ability of the adhesive to penetrate into the etched enamel crevice prior to hardening, as well as the strength of the adhesive itself. Because of the nature of the current bonding is mostly mechanical binding; reported only with tri-n-butyl borane derivatives as a catalyst for the methacrylate binder, the tooth can be partially chemically bonded. However, the practical application of such materials in the tooth surface, the same method of acid etching the surface of the enamel. The essence of acid etching and bonding: bonding adhesive before attachment, the surface of the enamel bonding area to use acid corrosion decalcification, the results of acid etching, enamel decalcification than enamel center decalcification as much , Resulting in the formation of tiny tooth enamel surface