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目的比较在进行后牙深龋充填手术中,使用劲润牙本质保护3M Vitrebond光固化玻璃离子垫底材料的术后敏感性。方法 200颗深龋后牙,随机分为实验组和对照组,实验组涂布劲润牙本质保护膜后涂自酸蚀粘接剂用P60树脂充填,对照组用3M Vitrebond光固化玻璃离子垫底后涂自酸蚀粘接剂用P60树脂充填,充填后1天、1周、1个月和3个月对敏感发生率和自觉疼痛程度进行比较。结果术后1天、1周、1个月和3个月,实验组和对照组的术后敏感率和自觉疼痛程度无差异(P>0.05)。结论在后牙深龋治疗的前三个月内,使用光固化玻璃离子垫底材料和使用劲润牙本质保护膜的术后敏感性无显著差异,关于牙本质保护膜降低后牙深龋充填术后的敏感性的疗效有待于后续的实验来确定。
Objective To compare the postoperative sensitivity of 3M Vitrebond light-cured glass ionomer materials for the treatment of deep posterior dental caries in infracted teeth. Methods 200 deep carious deciduous teeth were randomly divided into experimental group and control group. The experimental group was coated with vitrified dentin protective film and self-etching adhesive was filled with P60 resin. The control group was coated with 3M Vitrebond light-cured glass ionomer Post-coated with self-etching adhesive P60 resin filling, filling 1 day, 1 week, 1 month and 3 months on the incidence of sensitivity and the degree of conscious pain were compared. Results There was no difference in the postoperative sensitivity and the degree of conscious pain between the experimental group and the control group 1 day, 1 week, 1 month and 3 months after operation. Conclusion In the first three months after the treatment of deep caries of posterior teeth, there is no significant difference in postoperative sensitivity between using photocurable glass ionomer base material and the use of nonmagnetic dentin protective film. On the dentin protective film to reduce posterior dental caries filling After the sensitivity of the efficacy of the follow-up experiments to be determined.