不同含10-甲基丙烯酰氧癸基磷酸二氢引物对正畸金属托槽与二氧化硅涂层氧化锆表面的结合强度研究。

Na-Hyun Kim, Yoon-Ji Kim, Dong-Yul Lee
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MATERIALS AND METHODS One hundred ninety polished Y-TZP specimens were randomly assigned to 19 groups (n = 10): 30 specimens were used for surface analyses after polishing with 600-grit silicon carbide paper, airborneparticle abrasion with 50-μm alumina (A), or tribochemical silica coating (CoJet [C]); 160 specimens were used in SBS testing of orthodontic metal brackets to Y-TZP after alumina airborne-particle abrasion or tribochemical silica coating and application of either ESPE-Sil (S) (ASn, ASa, CSn, CSa), Alloy Primer (AP) (AAPn, AAPa, CAPn, CAPa), Clearfil Ceramic Primer (CP) (ACPn, ACPa, CCPn, CCPa), or Scotchbond Universal (U) (AUn, AUa, CUn, CUa) and either stored in water for 24 h (non-aged, n) or thermocycled 5000 times (aged, a). The surface analyses and SBSs were statistically analyzed with ANOVA and Tukey's tests. RESULTS Both mechanically treated surfaces had significantly greater surface roughness and surface free energy than did the polished surfaces. 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引用次数: 12

摘要

目的评价摩擦化学二氧化硅涂层和不同含10-甲基丙烯酰氧癸基磷酸二氢(MDP)引物对正畸金属托槽与钇稳定四方氧化锆多晶(Y-TZP)表面剪切结合强度(SBS)的影响。材料与方法190个Y-TZP抛光样品随机分为19组(n = 10): 30个样品分别采用600磨粒碳化硅纸抛光、50-μm氧化铝(A)气载研磨或摩擦化学二氧化硅涂层(CoJet)进行表面分析;用160个样品进行了正极金属托槽(Y-TZP)的SBS测试,这些托槽经氧化铝气载颗粒磨损或摩擦化学二氧化硅涂层后,分别使用ESPE-Sil (S) (ASn, ASa, CSn, CSa), Alloy Primer (AP) (AAPn, AAPa, CAPn, CAPa), Clearfil Ceramic Primer (CP) (ACPn, ACPa, CCPn, CCPa)或Scotchbond Universal (U) (AUn, AUa, CUn, CUa),并在水中保存24小时(未老化,n)或热循环5000次(老化,n)。a).表面分析和sbs采用方差分析和Tukey’s检验进行统计学分析。结果两种机械处理表面的表面粗糙度和表面自由能均显著高于抛光表面。底漆类型和老化程度对粘结强度影响较大。在热循环标本中,AAPa、AUa和CCPa组表现出最大的SBS。结论氧化铝气相颗粒磨损后,使用合金底漆、Clearfil陶瓷底漆或Scotchbond Universal底漆与Y-TZP陶瓷的结合稳定。然而,在摩擦化学二氧化硅涂层之后,只有Clearfil陶瓷底漆与Y-TZP陶瓷产生了持久的结合。
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Bond Strengths of Orthodontic Metal Brackets to Tribochemically Silica-coated Zirconia Surfaces Using Different 10-Methacryloyloxydecyl Dihydrogen Phosphate-containing Primers.
PURPOSE To evaluate the effects of tribochemical silica coating and different 10-methacryloyloxydecyl dihydrogen phosphate (MDP)-containing primers on the shear bond strength (SBS) of orthodontic metal brackets to yttrium-stabilized tetragonal zirconia polycrystal (Y-TZP) surfaces. MATERIALS AND METHODS One hundred ninety polished Y-TZP specimens were randomly assigned to 19 groups (n = 10): 30 specimens were used for surface analyses after polishing with 600-grit silicon carbide paper, airborneparticle abrasion with 50-μm alumina (A), or tribochemical silica coating (CoJet [C]); 160 specimens were used in SBS testing of orthodontic metal brackets to Y-TZP after alumina airborne-particle abrasion or tribochemical silica coating and application of either ESPE-Sil (S) (ASn, ASa, CSn, CSa), Alloy Primer (AP) (AAPn, AAPa, CAPn, CAPa), Clearfil Ceramic Primer (CP) (ACPn, ACPa, CCPn, CCPa), or Scotchbond Universal (U) (AUn, AUa, CUn, CUa) and either stored in water for 24 h (non-aged, n) or thermocycled 5000 times (aged, a). The surface analyses and SBSs were statistically analyzed with ANOVA and Tukey's tests. RESULTS Both mechanically treated surfaces had significantly greater surface roughness and surface free energy than did the polished surfaces. The type of primer and aging significantly affected the bond strength. Among the thermocycled specimens, the AAPa, AUa, and CCPa groups showed the greatest SBS. CONCLUSION After alumina airborne-particle abrasion, the application of Alloy Primer, Clearfil Ceramic Primer, or Scotchbond Universal provided stable bonding to Y-TZP ceramics. After tribochemical silica coating, however, only Clearfil Ceramic Primer produced a durable bond to Y-TZP ceramics.
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