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一、牙科用粘固剂的要求:粘固剂广泛应用于牙科各领域,某些产品主要用作洞基,某些主要用于粘固,也有作为根管封闭或兼作充填用。 (一)洞基材料的要求:洞基或洞衬的目的是作为充填材料与牙本质层之间的隔绝层,以期起到隔绝热、化学和电流刺激的作用。当使用金属如银汞或使用凝固时有高放热反应的材料如树脂作充填时就需要用隔热洞基材料。银汞的导热性约比牙本质大40倍,故在深窝洞牙本质只残留
First, the requirements of dental cement: Cement is widely used in various dental fields, some products are mainly used as a hole-based, some are mainly used for cementing, but also as a root canal closed or doubly as filling. (A) the requirements of the material of the hole: The purpose of the hole or hole lining is as an insulating layer between the filling material and dentin layer, in order to play the role of thermal, chemical and electric current isolation. Thermal insulation based materials are required when using metals such as amalgam or when using materials that have a high exothermic reaction during solidification, such as resins. Amalgamation of thermal conductivity about 40 times larger than the dentin, it is only deep cave dentin residue