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不同粉液比的氧化锌丁香油粘固剂对牙本质粘结的影响 被引量:2

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摘要 目的探讨氧化锌丁香油粘固剂对牙本质和树脂粘结强度、牙本质和树脂间微裂隙形成的影响。方法选取新鲜拔除、无龋坏的牛中切牙72颗,制备牙本质粘结试件。试件随机分为P rim e&Bond NT组、GLUM A组、粘结界面观察组,各组再分为空白对照组、10 g∶1 g和10 g∶2 g粉液比粘结界面观察组。再将各亚组随机分为非水老化处理组和水老化处理组。测试P rim e&Bond NT组和GLUM A组的试件剪切粘结强度。对粘结界面观察组试件进行粘结界面的扫描电镜观察。结果以10 g∶2 g粉液比的氧化锌丁香油粘固剂处理牙本质表面导致牙本质和树脂的粘结强度显著下降,引起牙本质-树脂界面微裂隙的产生;以10 g∶1 g粉液比的氧化锌丁香油粘固剂处理牙本质表面对牙本质和树脂的粘结强度无显著影响,水老化前后亦未观察到牙本质-树脂界面微裂隙的形成。结论氧化锌丁香油粘固剂对牙本质粘结的影响和其粉液比有关。
出处 《四川大学学报(医学版)》 CAS CSCD 北大核心 2005年第6期902-904,共3页 Journal of Sichuan University(Medical Sciences)
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