论文部分内容阅读
BL—1牙科粘固剂是口腔科使用的一种基材,可用于口腔内牙体缺损的充填修补,也可用于各种修复体的粘结。BL—1牙科粘固剂由粉剂和液体两组份构成。粉剂的主要成份是氟硅酸复盐,阳离子的主要成份为钙和铝;液剂主要成份是甲基丙烯酸的改性共聚物。这两种组成根据需要以一定比例混合时,液体中的羧基所释放的氢离子与粉剂中的钙铝离子发生交换反应,逐步形成甲基丙烯酸改性共聚体的钙铝盐的高分子沉
BL-1 dental cement is a kind of base material used in dentistry. It can be used for the filling and repairing of dental defects in oral cavity and also for the bonding of various prostheses. BL-1 dental cement consists of two components powder and liquid. The main component of the powder is fluorosilicate double salt, the main component of the cation is calcium and aluminum; the main component of the liquid is a modified copolymer of methacrylic acid. When the two components are mixed in a certain proportion according to the need, the hydrogen ions released from the carboxyl groups in the liquid exchange reaction with the calcium and aluminum ions in the powder to gradually form the polymer sink of the calcium-aluminum salt of the methacrylic acid-modified interpolymer