喷砂处理对二氧化锆陶瓷表面性状及树脂粘接的影响  

Effects of sandblasting on surface character and resin bond of zirconia ceramic

作　　者：孟翔峰[1] 谢志刚[3] 陈渊华[3] 顾宁[2] 

机构地区：[1]东南大学生物科学与医学工程学院江苏省生物材料与器件重点实验室,南京210096 [2]大学口腔医学院南京市口腔医院修复科,南京210008 [3]南京大学口腔医学院南京市口腔医院修复科

出　　处：《中华口腔医学杂志》2011年第6期370-374,共5页Chinese Journal of Stomatology

基　　金：南京市医学科技发展项目（ZKX09035）

摘　　要：目的探讨A12O3喷砂处理对二氧化锆陶瓷表面粗糙度、元素构成及树脂粘接耐久能力的影响。方法可切削二氧化锆陶瓷片试件60个经烧结、研磨、清洗后，30个试件表面在0．3MPa压力下接受50μmA12O3颗粒喷砂处理20s，形成喷砂后试件（另30个不喷砂试件为喷砂前试件）。使用激光共聚焦显微镜对喷砂前、后的陶瓷表面粗糙度进行测量。使用X射线能谱仪对喷砂前、后的陶瓷表面元素成分进行定性定量分析。试件分为6组，每组10个：1、2组分别由喷砂前、后试件与常规树脂粘接剂（Duolink）粘接；3、4组分别由喷砂前、后试件分别与含磷酸酯类功能性单体的树脂粘接剂（PanaviaF）粘接；5和6组分别由喷砂前、后试件经含磷酸酯类功能性单体的硅烷偶联剂（Clearfil Ceramic Primer）处理后与PanaviaF粘接。各组试件分为两个亚组，分别经0、10000次冷热循环后测量剪切粘接强度。使用单因素方差分析和独立样本t检验进行统计。结果喷砂后陶瓷表面氧元素原子百分比[（65．03±1．48）％]显著低于喷砂前[（75．85±1．61）％]，锆元素原子百分比[（17．30±1．43）％]显著高于喷砂前[（9．62±0．29）％]（P〈0．001），同时表面粗糙度高于喷砂前（P〈0．001）。冷热循环降低了所有组粘接强度（P〈0．001），其中1、2组试件在循环过程中全部脱落，3、5组粘接强度[（0．59±0．17）、（0．89±0．84）MPa]显著低于4、6组粘接强度[（14．63±3．03）、（16．64±1．90）MPa]，6组粘接强度显著高于4组（P〈0．001）。所有试件粘接断裂模式均为陶瓷一粘接剂界面断裂。结论A12O3喷砂处理在增加二氧化锆陶瓷表面粗糙度和表面积的同时，也增加了表面锆元素的质量和原子百分比，从而提高了二氧化锆陶瓷与含磷酸酯类功能性单体的树脂粘接剂间的化学粘接耐久能力。Objective To evaluate the effect of A1203 particles sandblasting on the surface roughness, element composition and resin bond durability of zirconia ceramic. Methods Sixty 2. 5 mm thick computer aided design and computer aided manufacture （CAD/CAM） zirconia ceramic （ Vita Inceram YZ） plates were fired, polished and cleaned. Half of polished ceramic plates was sandblasted with 50μm alumina particles at O. 3 MPa for 20 s. The surface roughness of polished and sandblasted ceramic surface were measured by 3D-laser scanning microscope, and the surface element weight and atom ratio of the ceramic surface were measured by energy disperse spectroscopy （ EDS）. Then polished and sandblasted ceramic plates were randomized into six groups. In Group 1 and 2 the polished and sandblasted ceramic plates were bonded irrespectively with conventional resin cement （DUOLINK） . In Group 3 and 4 the ceramic plates were bonded with resin cement containing MDP（ Panavia F） , In Group 5 and 6 the specimenswere pretreated with silane coupler acitivated by MDP（ Clearfil Ceramic Primer） , then bond with Panavia F. The specimens of each test group were then divided into two subgroups, and to received shear test after 0 and 10 000 time thermal cycle. The data was analyzed by one-way ANOVA and independent t test. Results Comparing with polishing, sandblasting reduced the oxygen atom and weight ratio of zirconia ceramic surface （P〈O. 001 ）, and increased the zirconium atom and weight ratio （P 〈0. 001 ）, meanwhile increased the surface roughness （ P 〈 0. 001 ）. The bond strength between ceramic plates and resin cement in all test groups decreased after thermocycling （P 〈0. 001 ）. All specimen in test group 1 and 2 lost bond, and the hond strength of test group 3 and 5 [ （0. 59 ± O. 17 ）, （0. 89± O. 84 ） MPa ] were significantly lower than that of test group 4 and 6[ （ 14. 63±3.03）, （ 16.64 ± 1.90） MPa] , and the bond strength of test group 6 were significanlty higher than that of

关 键 词：树脂黏固剂 陶瓷制品 抗剪切强度 喷砂 

分 类 号：R783.1[医药卫生—口腔医学]