目的:评价不同粘接剂及表面处理方法对氧化锆陶瓷与粘接剂的粘接强度的影响。方法:将较大氧化锆瓷片和较小氧化锆瓷片派对,随机分成12组,每组10对。粘接剂选用Ketac Cem Easymix、Rely X luting、Bifix QM和Panavia F,对氧化锆的表面分...目的:评价不同粘接剂及表面处理方法对氧化锆陶瓷与粘接剂的粘接强度的影响。方法:将较大氧化锆瓷片和较小氧化锆瓷片派对,随机分成12组,每组10对。粘接剂选用Ketac Cem Easymix、Rely X luting、Bifix QM和Panavia F,对氧化锆的表面分别喷砂、硅烷化或喷砂联合硅烷化处理,并进行剪切粘接强度测试。结果:在使用Ketac Cem Easymix和Rely X luting时,喷砂提高了粘接强度(P<0.01)。在使用Bifix QM和Panavia F时,喷砂、硅烷化或喷砂联合硅烷化处理提高了粘接强度(P<0.01)。表面处理相同时,Panavia F与氧化锆的粘接强度高于其它粘接剂(P<0.01)。结论:使用Panavia F联合喷砂加硅烷化处理的粘接强度最高。展开更多
We sought to evaluate immediate and delayed micro-tensile bond strength of Panavia F2.0 and Multilink Sprint resin cement to superficial, deep and cervical dentin. Thirty-six freshly extracted non-carious human molars...We sought to evaluate immediate and delayed micro-tensile bond strength of Panavia F2.0 and Multilink Sprint resin cement to superficial, deep and cervical dentin. Thirty-six freshly extracted non-carious human molars were sectioned in the mesiodistal direction to expose three different dentin regions including superficial dentin （1 mm below the dentine-enamel junction）, deep dentin （1 mm above the highest pulp horn） and cervical dentin （0.5 mm above the cemento-enamel junction and 0.5 mm below the dentine-enamel junction）. Resin cements were applied on dentin surfaces and composite blocks were luted under constant seating pressure. Each group was divided into three subgroups according to time intervals. Specimens were sectioned to obtain sticks of 1 mm2 in diameter and subjected to microtensile bond strength testing at a cross head speed of 1 mrn/min. Both resin cements showed higher micro-tensile bond strength to superficial dentin than that to deep or cervical dentin （P 〈 0.001）. Micro-ten- sile bond strengths of Panavia F2.0 were higher than those of Multilink Sprint at different dentin regions （P 〈 0.001）. Immediate ＂micro-tensile bond strengths were higher than those of delayed micro-tensile bond strengths for both resin cements （P 〈 0.001）. It was concluded that resin cements with different chemical formulations and applications yield significantly different micro-tensile bond strengths to different dentin regions.展开更多
文摘目的:评价不同粘接剂及表面处理方法对氧化锆陶瓷与粘接剂的粘接强度的影响。方法:将较大氧化锆瓷片和较小氧化锆瓷片派对,随机分成12组,每组10对。粘接剂选用Ketac Cem Easymix、Rely X luting、Bifix QM和Panavia F,对氧化锆的表面分别喷砂、硅烷化或喷砂联合硅烷化处理,并进行剪切粘接强度测试。结果:在使用Ketac Cem Easymix和Rely X luting时,喷砂提高了粘接强度(P<0.01)。在使用Bifix QM和Panavia F时,喷砂、硅烷化或喷砂联合硅烷化处理提高了粘接强度(P<0.01)。表面处理相同时,Panavia F与氧化锆的粘接强度高于其它粘接剂(P<0.01)。结论:使用Panavia F联合喷砂加硅烷化处理的粘接强度最高。
文摘We sought to evaluate immediate and delayed micro-tensile bond strength of Panavia F2.0 and Multilink Sprint resin cement to superficial, deep and cervical dentin. Thirty-six freshly extracted non-carious human molars were sectioned in the mesiodistal direction to expose three different dentin regions including superficial dentin （1 mm below the dentine-enamel junction）, deep dentin （1 mm above the highest pulp horn） and cervical dentin （0.5 mm above the cemento-enamel junction and 0.5 mm below the dentine-enamel junction）. Resin cements were applied on dentin surfaces and composite blocks were luted under constant seating pressure. Each group was divided into three subgroups according to time intervals. Specimens were sectioned to obtain sticks of 1 mm2 in diameter and subjected to microtensile bond strength testing at a cross head speed of 1 mrn/min. Both resin cements showed higher micro-tensile bond strength to superficial dentin than that to deep or cervical dentin （P 〈 0.001）. Micro-ten- sile bond strengths of Panavia F2.0 were higher than those of Multilink Sprint at different dentin regions （P 〈 0.001）. Immediate ＂micro-tensile bond strengths were higher than those of delayed micro-tensile bond strengths for both resin cements （P 〈 0.001）. It was concluded that resin cements with different chemical formulations and applications yield significantly different micro-tensile bond strengths to different dentin regions.
