首页 | 本学科首页   官方微博 | 高级检索  
     

表面硅涂层改性对氧化锆陶瓷与树脂水门汀粘结强度的影响
引用本文:徐春华,耿建平. 表面硅涂层改性对氧化锆陶瓷与树脂水门汀粘结强度的影响[J]. 口腔医学, 2012, 32(11): 668-670,676
作者姓名:徐春华  耿建平
作者单位:1. 浙江省绍兴市口腔医院特诊科,绍兴,312000
2. 南京工业大学生物医学工程研究所,南京,210009
摘    要:
目的 研究不同浓度和不同厚度硅涂层对Lava氧化锆陶瓷与树脂水门汀粘结强度的影响。方法 制作Lava氧化锆长方体状陶瓷试样共81件(10 mm×10 mm×3 mm),按20%、30%、40% 3种硅涂层浓度及100、200、300 nm 3种硅涂层厚度分为9组(A~I,n=9)对氧化锆陶瓷粘结面进行处理,然后将每组试样与Panavia F树脂水门汀粘结,万能材料实验机测试剪切粘结强度,对结果进行统计分析。结果 A组到I组各组剪切粘结强度值分别为3.09±0.20、3.27±0.22、3.30±0.38、3.17±0.25、5.35±0.39、4.09±0.29、3.16±0.29、3.24±0.23和(4.01±0.28) MPa。不同厚度的硅涂层各组间粘结剪切强度差异具有统计学意义(P<0.05),不同浓度硅涂层间也具有统计学意义(P<0.05),浓度和厚度之间存在交互效应(P<0.05),30%浓度200 nm厚度硅涂层获得的剪切粘结强度值最大。结论 30%浓度涂抹200 nm厚度的硅涂层为较适宜的浓度和厚度,可明显提高氧化锆陶瓷与树脂水门汀剪切粘结强度。

关 键 词:树脂水门汀  氧化锆  硅涂层  剪切粘结强度  

Effects of surface modification on bonding strength between dental zirconia ceramics and resin cement
XU Chun-Hua , GENG Jian-Ping. Effects of surface modification on bonding strength between dental zirconia ceramics and resin cement[J]. Stomatology, 2012, 32(11): 668-670,676
Authors:XU Chun-Hua    GENG Jian-Ping
Affiliation:.(Department of Special Dental Care,Shaoxing Stomatology Hospital,Shaoxing 312000,China)
Abstract:
Objective To evaluate the effects of surface modification with different thickness and concentrations on the bonding strength between dental zirconia ceramics and resin cement. Methods Silica coating was prepared in colloidal silica sol in thickness of 100 nm,200 nm,300 nm and in concentrations of 20% ,30% ,40% on dental zirconia ceramics,defined as group A to I respectively. Totally 81 discs were fabricated and randomly divided into nine groups (n = 9 ) respectively after polish and sandblast. Each ceramic block was bonded to light curing composite resin. All samples were stored in distilled water at 37 % for 24 h before they were taken to measure the shear bonding strength of the resin cement to the ceramic surface. Results The shear bonding strength form A to I was 3. 09 ± 0.20,3.27 ± 0.22,3.30 ± 0.38,3.17 ± 0.25,5.35 ± 0. 39,4.09 ± 0.29,3.16 ± 0.29,3.24 ± 0.23, ( 4.01 ± 0.28 ) MPa respec- tively. There were significant differences among silica coatings in different thickness ( P 〈 0.05 ) , and significant differences among sili- ca coatings in different concentrations ( P 〈 0.05 ). There was interaction between thickness and concentration of the silica coatings ( P 〈 0.05 ). Silica coating in 30% and 200nm had the highest shear bonding strength. Conclusions 30% and 200 nm silicon coating is more appropriate for the dental zirconia ceramics ,which can obviously improve the shear bonding strength between the zirconia ceramics and resin cement.
Keywords:resin cement  dental zirconia ceramic  silica coating  shear bonding strength
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《口腔医学》浏览原始摘要信息
点击此处可从《口腔医学》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号