新型氧化锆底层涂料提高树脂基水门汀的粘结强度。

New zirconia primer improves bond strength of resin-based cements.

机构信息

Division of Restorative Sciences, School of Dentistry, Oral Health Center, University of Southern California, 3151 Hoover Street, Los Angeles, CA 90089, USA.

出版信息

Dent Mater. 2010 Apr;26(4):345-52. doi: 10.1016/j.dental.2009.12.005. Epub 2010 Jan 4.

DOI:10.1016/j.dental.2009.12.005

PMID:20047757

Abstract

OBJECTIVE

Various chemical interactions can be used to develop ceramic-resin bonding and specific approaches are available for zirconia ceramics. This study evaluated the effect of a new experimental primer, a mixture of organophosphate and carboxylic acid monomers, on the zirconia-to-resin shear bond strength (SBS).

METHODS

Forty Y-TZP blocks (15x4x2mm) were embedded in an acrylic resin base, polished, Al(2)O(3)-sandblasted and randomly divided into eight groups. Three different resin-based luting agents (BisCem, Duo-Link, Panavia F) were used to build 2.4mm-diameter cylinders (n=15) onto the zirconia surface with and without the new experimental zirconia primer. The new primer was also tested with Z100 restorative composite resin cylinders. In addition, Panavia was used with its own primer (Clearfil Ceramic Primer). SBS testing was carried out after 24h of storage in water. Scanning electron microscopy (SEM) was used to evaluate the zirconia surface topography and failure mode.

RESULTS

According to ANOVA and Tukey test (alpha=0.05), the association of the experimental primer with the restorative composite resin Z100 yielded the highest SBS (29.35MPa) followed by DuoLink with the new primer (26.68MPa). The groups that did not receive the experimental primer presented the lowest SBS values (from 5.95 to 9.79MPa). The failure mode was adhesive for the non-primed specimens and predominantly mixed in the primed groups.

SIGNIFICANCE

The use of the new zirconia experimental primer based on organophosphate/carboxylic acid monomers increased the bond strength of different resin-based luting agents including Z100 restorative material.

摘要

目的

可以利用各种化学相互作用来开发陶瓷树脂结合剂，并且针对氧化锆陶瓷有特定的方法。本研究评估了一种新的实验性底涂剂（有机磷酸酯和羧酸单体混合物）对氧化锆与树脂剪切结合强度（SBS）的影响。

方法

将 40 个 Y-TZP 块（15x4x2mm）嵌入丙烯酸树脂基底中，进行抛光、Al2O3 喷砂处理，并随机分为八组。使用三种不同的树脂基粘固剂（BisCem、Duo-Link、Panavia F）在氧化锆表面构建 2.4mm 直径的圆柱体（n=15），其中有和没有新的实验性氧化锆底涂剂。还使用了新的底涂剂与 Z100 修复复合树脂圆柱体进行了测试。此外，Panavia 还与自身的底涂剂（Clearfil Ceramic Primer）一起使用。将试件在水中储存 24 小时后进行 SBS 测试。使用扫描电子显微镜（SEM）评估氧化锆表面形貌和失效模式。

结果

根据 ANOVA 和 Tukey 测试（alpha=0.05），实验性底涂剂与修复复合树脂 Z100 的联合使用产生了最高的 SBS（29.35MPa），其次是 DuoLink 与新底涂剂（26.68MPa）。未使用实验性底涂剂的组呈现出最低的 SBS 值（从 5.95 到 9.79MPa）。非底涂剂组的失效模式为粘着性，而底涂剂组的失效模式主要为混合性。