烧结温度对氧化锆/饰面瓷剪切强度的影响  

Influence of sintering temperature on zirconia/veneer shear bond strength

作　　者：龚晴昕[1] 苏晓晖[1] 黎松龄[1] 韦赞军 

机构地区：[1]广西医科大学口腔医学院修复科,广西南宁530021 [2]广西南宁市深雅科技有限公司,广西南宁530021

出　　处：《临床口腔医学杂志》2012年第1期17-20,共4页Journal of Clinical Stomatology

基　　金：广西教育厅科研资助项目(201012MS047)

摘　　要：目的:研究不同烧结温度对氧化锆/饰面瓷剪切强度的影响。方法:将70个氧化锆试件按饰面瓷烧结温度的不同随机分为7组。采用平行界面剪切实验测定各组的氧化锆/饰面瓷结合强度。结果:7组间氧化锆/饰面瓷剪切强度有统计学差异(P﹤0.05)。最高烧结温度860℃组及最低烧结温度800℃组,与标准组830℃组相比较剪切强度均有统计学差异(P﹤0.05)。810℃、820℃、840℃、850℃组,与标准组830℃组相比较剪切强度均无统计学差异(P﹥0.05)。结论:饰面瓷的烧结温度对氧化锆/饰面瓷的剪切强度产生影响,过高或过低的烧结温度会降低氧化锆/饰面瓷试件的剪切强度。Objective： To investigate the Influence of sintering temperature on zirconia/veneer Shear bond strength. Method： according to sintering temperatures, 70 samples were divided into 7 groups. Shear tests were performed in a uni- versal. Result： There were significant differences for shear bond strength between seven groups （P 〈0.05）. Compared with the standard group 830 ℃group,the highest sintering temperature 860 ℃ group and minimum sintering temperature 800 ℃ group both have significant differences （P 〈0.05）. Compared with the standard group 830℃ group, 810 ℃, 820 ℃, 840 ℃, 850 ℃ groups all have no differences （P 〉 0.05）. Conclusion： The sintering temperature influences the shear bond strength of zirconia/veneer. Too high or low sintering temperature decreases the shear bond strength of zirconia＆eneer.

关 键 词：氧化锆/饰面瓷 烧结温度 剪切强度 

分 类 号：R783.2[医药卫生—口腔医学]