上海口腔医学

上海口腔医学 ›› 2016, Vol. 25 ›› Issue (2): 141-145.

• 论著 • 上一篇    下一篇

纳米SiO2溶胶对氧化锆基底与饰面瓷结合强度的影响

王思钱，张大风，郑铁丽，杨静远，林婷婷，麻健丰   

  1. 温州医科大学附属口腔医院 口腔修复科,浙江 温州 325027
  • 收稿日期:2015-06-26 修回日期:2015-09-16 出版日期:2016-03-25 发布日期:2016-05-06
  • 作者简介:王思钱(1979-),男,硕士,Tel:0577-88063033,E-mail: WSQ982004@163.com 麻健丰,E-mail: dentistmacn@aliyun.com
  • 基金资助:
    国家自然科学基金(81271186); 浙江省教育厅基金(Y201121626);温州市科技局基金(Y20110066);浙江省大学生科技(创新)项目(2014R413019)

Comparison of the shear bond strength by using nano silica sol to zirconia basement and veneer porcelain

WANG Si-qian, ZHANG Da-feng, ZHEN Tie-li, YANG Jing-yuan, LIN Ting-ting, MA Jian-feng   

  1. Department of Prosthodontic, Stomatology Hospital of Wenzhou Medical University. Wenzhou 325027, Zhejiang Province, China
  • Received:2015-06-26 Revised:2015-09-16 Online:2016-03-25 Published:2016-05-06

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摘要： 目的: 探讨采用溶胶-凝胶技术在氧化锆表面制备薄纳米SiO2涂层对氧化锆基底与饰面瓷结合强度的影响,指导氧化锆全瓷冠的制作。方法: 将软质氧化锆试件切割成15 mm×10 mm×2.5 mm大小的长方形瓷块40片,分为4组,每组10件,分别采用4种处理方式。A 组—仅经1450℃ 结晶处理;B组—先经30%纳米SiO2溶胶渗透后,再经1450℃ 结晶处理;C组—先经 1450℃结晶,然后用30%纳米SiO2溶胶渗透,再经1450℃热处理;D组—表面涂布纳米SiO2溶胶后,1450℃结晶处理;E组—镍铬合金烤瓷组,使用失蜡铸造法制作12 mm×8 mm×2 mm 长方形镍铬合金条块10件。5组试件在其表面堆塑直径为5 mm、高4 mm的饰面瓷圆柱,然后进行剪切强度测试。采用SPSS 19.0软件包对数据进行统计学分析。结果: 5组试件的剪切强度分别为A组(28.12±2.95) MPa、B组(31.09±3.94) MPa、C组(25.60±2.45) MPa、D组(31.75±4.90) MPa、E组(28.67±3.95) MPa。单因素方差分析显示5组间具有显著差异(P<0.05),其中,C组与B组和D组均具有显著差异。结论:①溶胶-凝胶技术在结晶致密前氧化锆基底表面制备纳米SiO2涂层,能提高氧化锆基底与饰面瓷的结合强度; ②在结晶致密的氧化锆基底表面制备纳米SiO2涂层,能降低氧化锆基底与饰面瓷的结合强度; ③氧化锆与氧化锆专用饰面瓷的结合强度与常用金属与饰面瓷的结合强度一致;④通过溶胶-凝胶技术在结晶致密前的氧化锆基底表面导入SiO2溶胶,提高氧化锆与饰面瓷结合强度的技术路线切实可行。

关键词: 氧化锆陶瓷 , 剪切强度, 纳米SiO2溶胶

Abstract: PURPOSE: To investigate the feasibility of using sol gel technique to produce thin layer nano silicon dioxide on zirconia ceramic surface and the effect of improving shear bond strength between zirconia and veneer porcelain. METHODS: The presintered zirconia specimen was cut into a rectangle block piece (15 mm×10 mm×2.5 mm), a total of 40 pieces were obtained and divided into 4 groups, each group had 10 pieces. Four different treatments were used in each group respectively. Pieces in group A (control group) were only sintered at 1450℃ to crystallization; pieces in group B underwent 30% nano silica sol infiltration first and then were sintered at 1450℃ to crystallization; piece in group C underwent crystallization first at 1450℃, then 30% nano silica sol infiltration and were sintered at 1450℃ again; pieces in group D was coated by nano silica sol and then sintered at 1450℃ to crystallization; ten rectangle block pieces (12 mm×8 mm×2 mm) in group E were made. Cylinder veneers 5 mm in diameter and 4 mm in height were produced in each group and the shear bond strength was tested. Data were statistically analyzed by SPSS 19.0 software package. RESULTS: The shear bond strength of the 5 group specimens were: (28.12±2.95) MPa in group A, (31.09±3.94) MPa in group B, (25.60±2.45) MPa in group C, (31.75±4.90) MPa in group D, (28.67±3.95) MPa in group E, respectively. Significant differences existed between the 5 groups, and group C had significant difference compared with group B and D. CONCLUSIONS:① Use of nano silicon sol gel on presintered zirconia surface to make thin layer of nano silicon dioxide can improve the shear bond strength between zirconia and veneer; ②Using nano silicon sol gel on crystallization zirconia surface to make thin layer of nano silicon dioxide will decrease the shear bond strength between zirconia and veneer; ③ Zirconia veneer bilayer ceramic has the same shear bond strength with porcelain fused to Ni Cr alloy; ④Use of sol gel technique to produce thin layer nano silicon dioxide on zirconia ceramic surface is feasible and can improve shear bond strength between zirconia and veneer porcelain.

Key words: Dental zirconia ceramic, Shear bond strength, Nano silica sol

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