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目的:探讨氟离子导入对根充后微渗漏发生的影响。方法:选择粗细相近的离体单根管牙18颗,随机分为氟离子导入组、氟离子导入+自固化磷酸钙(CPC)组和对照组。氟离子导入组,即根管预备后采用氟离子导入再根充;氟离子导入+CPC组,即除氟离子导入外采用自固化磷酸钙涂壁后再根充;对照组,即根管预备后直接根充。以透明牙染料渗透长度为指标,实验数据采用SPSS17.0软件包进行方差分析。结果:微渗漏长度:氟离子导入组为(2.6±1.6)mm,氟离子导入+CPC涂壁组为(2.1±1.6)mm,对照组为(5.8±3.6)mm。氟离子导入组<对照组(P<0.05),差异有显著性;氟离子导入+CPC组<对照组(P<0.05),差异有显著性;氟离子导入组<氟离子导入+CPC组(P>0.05),差异无显著性。结论:①氟离子导入技术可以降低根充后微渗漏发生。②氟离子导入加自固化磷酸钙根管涂壁能降低根充后的微渗漏发生,但与单纯氟离子导入无差别。
Objective: To investigate the effect of fluoride ion implantation on the microleakage after root filling. Methods: Twenty-eight single root canal teeth with similar thickness were selected and randomly divided into fluoride ion introduction group, fluoride ion introduction + self-curing calcium phosphate (CPC) group and control group. Fluoride ionization group, that is, after the preparation of root canal fluoride ion introduction and then root filling; fluoride ion + CPC group, that is, in addition to fluoride ion introduction using self-curing calcium phosphate wall after root filling; control group, After direct root filling. The transparent tooth dye penetration length as an indicator, the experimental data using SPSS17.0 package for analysis of variance. Results: The length of microleakage was (2.6 ± 1.6) mm in fluoride ion-implantation group, (2.1 ± 1.6) mm in fluoride ion-guided + CPC coating group and 5.8 ± 3.6 mm in control group. (P <0.05), there was a significant difference between fluoride group and control group (P <0.05), and there was significant difference between fluoride group and CPC group (P <0.05) P> 0.05), the difference was not significant. Conclusion: ① fluoride ion implantation technology can reduce the occurrence of microleakage after root filling. ② fluoride ion implantation plus self-curing calcium phosphate root canal coating can reduce the occurrence of microleakage after root filling, but no difference with the simple fluoride ion introduction.