光照射时间对二氧化锆陶瓷树脂粘接性能的影响

发布时间：2018-03-10 08:54

本文选题：二氧化锆陶瓷　切入点：自粘接型树脂水门汀　出处：《实用口腔医学杂志》2014年01期 　论文类型：期刊论文

【摘要】：目的:探讨在保证自粘接型树脂水门汀固化的同时延长光照射时间,能否改善其与二氧化锆陶瓷的粘接效果。方法:二氧化锆陶瓷片(InCoris ZI,Sirona)经烧结、打磨后,分别与3种自粘接型树脂水门汀(Biscem,G-Cem,SA Luting)粘接。每种树脂水门汀按照光照射时间(5、20、40 s)和冷热循环次数(0、5 000次)等实验条件交叉组合为6个实验组(n=10),测量每组试件的剪切粘接强度。另外每种树脂水门汀按照光照射时间分为3个实验组(n=5),测量避光保存24 h后的试件表面努氏显微硬度值。使用单因素方差分析和独立样本t检验分别对数据进行统计学处理。结果:除了G-Cem的40 s、SA Luting的20 s和40 s光照射组外,冷热循环显著降低了其余各组的粘接强度。冷热循环前,3种树脂水门汀的5 s和20 s光照射组的粘接强度显著高于40 s光照射组的;冷热循环后,20 s光照射组的粘接强度高于5 s和40 s光照射组。3种树脂水门汀20 s和40 s光照射组的显微硬度显著高于5 s光照射组的。结论:光照射时间对自粘接型树脂水门汀的固化及其与二氧化锆陶瓷的粘接强度和耐久能力有显著影响,但光照射时间的过长对二氧化锆陶瓷树脂粘接效果并不是有利的。
[Abstract]:Objective: to study whether the bonding effect of self-adhesive resin cement with zirconia ceramics can be improved by prolonging the irradiation time while ensuring the curing of self-adhesive resin cement. Methods: InCoris ZII-Sirona was sintered and polished. Each resin cement was bonded with three kinds of self-adhesive resin cement biscemer G-Cemn SA Luting.Each kind of resin cement was cross-combined with six experimental groups to measure the shear of each sample according to the irradiation time of 5 ~ 20 ~ (40 s) and the number of times of cooling and heat cycling (0 ~ 5 000 times). Shear bonding strength. In addition, each resin cement was divided into 3 experimental groups according to the irradiation time. The Knoop microhardness values of the specimens after 24 h preservation without light were measured. Single factor ANOVA and independent sample t test scores were used. No statistical processing of the data. Results: except for the G-Cem 40 sg SA Luting 20 s and 40 s light irradiation groups, The adhesion strength of the other groups was significantly decreased by the cold and hot cycles, and the bonding strength of the three resin cement groups was significantly higher than that of the 40 s light irradiation group after 5 s and 20 s irradiation before the cold and hot cycle. The adhesion strength of 20 s light irradiation group was higher than that of 5 s and 40 s light irradiation group, and the microhardness of 20 s and 40 s light irradiation group was significantly higher than that of 5 s light irradiation group. Conclusion: the time of light irradiation is better than that of 5 s light irradiation group. The solidification of adhesive resin cement and its bonding strength and durability with zirconia ceramics have a significant effect on the curing of cementing resin cement and its effect on the adhesion strength and durability of Zirconia ceramics. However, the adhesive effect of zirconia ceramic resin is not favorable when the irradiation time is too long.
【作者单位】：南京大学口腔医学院·南京市口腔医院第一门诊部;南京大学口腔医学院·南京市口腔医院修复科;
【基金】：南京市医学重点科技发展项目(编号:ZKX09035)
【分类号】：R783.1

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