Barghi N
Department of Restorative Dentistry, University of Texas Health Science Center at San Antonio San, Antonio, Texas, USA.
Compend Contin Educ Dent. 2000 Aug;21(8):659-62, 664; quiz 666.
Etched porcelain-bonded restorations have become the treatment of choice for the esthetic restoration of anterior teeth. The bond strength of composite resin to properly etched and silanated porcelain exceeds the cohesive strength of porcelain. Although bonding to enamel is accomplished by only etching the surface to create micromechanical retention, bonding to porcelain is achieved both mechanically through etching porcelain and chemically through the use of a silane coupling agent. Literature supports silanization of porcelain, which provides a more reliable bond than etching with hydrofluoric acid only, although the combination of both are recommended. This article discusses the importance of proper silanization of porcelain in obtaining a durable and reliable resin composite bond with porcelain.
酸蚀瓷贴面修复已成为前牙美学修复的首选治疗方法。复合树脂与经过适当酸蚀和硅烷化处理的瓷的粘结强度超过了瓷的内聚强度。虽然与牙釉质粘结仅通过酸蚀表面以形成微机械固位来实现，但与瓷的粘结则通过酸蚀瓷来实现机械固位，并通过使用硅烷偶联剂来实现化学固位。文献支持瓷的硅烷化处理，与仅用氢氟酸酸蚀相比，它能提供更可靠的粘结，不过建议两者结合使用。本文讨论了瓷的适当硅烷化处理对于获得与瓷的持久且可靠的树脂复合材料粘结的重要性。
