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目的探讨适合牙科氧化锆陶瓷的粘接材料。方法将烧结后的氧化锆陶瓷片分为3组,每组32片,分别采用三种自酸蚀粘接剂RelyX Unicem、PanaviaTM F、Superbond C﹠B与喷砂后的氧化锆陶瓷片粘接,水浴24h和水浴30d后,测试其粘接剪切强度。数据用SAS9.12软件进行统计学分析,粘接断面用扫描电镜观察。结果 PanaviaTMF树脂粘接材料粘接强度最好,分别为(31.36±3.49)MPa(水浴24h)、(29.52±3.44)MPa(水浴30d)。Superbond C﹠B能够取得较好的初期粘接强度(31.85±3.61)MPa(水浴24h),但水浴30d后明显下降至(21.32±2.58)MPa,P<0.05。RelyX Unicem的初期(水浴24h)粘接强度最小为(13.29±3.05)MPa,P<0.0001,但水浴30d后粘接强度为(12.06±2.28)MPa,未见明显降低,P(0.05。结论含有MDP磷酸单体的树脂粘接材料可以使牙科氧化锆陶瓷获得最好的粘接效果。使用不含无机填料的化学固化型纯树脂粘接剂可以取得较好的初期粘接强度但长期效果欠佳。一步法自酸蚀树脂粘接剂虽然没有很高的初期粘接强度,但粘接效果尚能持久。
Objective To study the adhesive materials suitable for dental zirconia ceramics. Methods The sintered zirconia ceramics were divided into three groups with 32 in each group. Three kinds of self-etching adhesive, RelyX Unicem, PanaviaTM F, Superbond C & B, , Water bath 24h and water bath 30d, test the adhesive shear strength. Data were analyzed by SAS9.12 software, and the cross-section of the bond was observed by scanning electron microscopy. Results The adhesive strength of PanaviaTM F resin adhesive was the best, which were (31.36 ± 3.49) MPa (water bath 24h), (29.52 ± 3.44) MPa (water bath 30d). Superbond C & B achieved better initial bond strength (31.85 ± 3.61) MPa (water bath 24h), but significantly decreased to (21.32 ± 2.58) MPa after 30 days of water bath, P <0.05. The minimum bonding strength of RelyX Unicem was (13.29 ± 3.05) MPa, P <0.0001, but the bonding strength was (12.06 ± 2.28) MPa after water bath for 30 days, but no significant decrease MDP phosphoric acid monomer resin bonding material can make dental zirconia ceramic get the best bonding effect.Use inorganic filler-free chemical curing type of pure resin adhesive can achieve better initial bonding strength but long-term effect of Good. One-step self-etching resin adhesive Although there is no high initial bonding strength, but the bonding effect is still lasting.