Effect of Water Aging of Adherend Composite on Repair Bond Strength of Nanofilled Composites
Effect of Water Aging of Adherend Composite on Repair Bond Strength of Nanofilled Composites
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DOI：
10.3290/j.jad.a41331
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发表时间：
2018-09-01
影响因子：
3.3
通讯作者：
Tagami, Junji
中科院分区：
文献类型：
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作者：
Nagano, Daiki;Nakajima, Masatoshi;Tagami, Junji
目的：为了评估水老化的被粘物复合材料的修复粘结强度的纳米填充复合材料与特定的填料，使用不同的bondingagenes.Materials和方法：三个纳米填充复合材料- Beautifil II与S-PRG填料（BE）/ Filtek最高超与纳米簇填料（SP）/ Estelite西格玛快速（ES）-和一个微杂化复合材料，Clearfil APX（AP），在这项研究中使用。将复合材料盘浸入水中不同的持续时间（立即、1周、2周或1个月），然后用三种粘合剂中的一种处理抛光表面-不处理（对照）、应用Clearfil SE One（SE）、应用Clearfil SE One加Clearfil Porcelain Bond Activator（PB）-然后填充修复复合材料。对粘结的复合材料圆盘进行微剪切粘结强度（μ SBS）测试。另外，测量树脂复合物的吸水性（W-sp）和溶解度（W-sl）。结果：水老化对修复粘结强度有显著影响（p < 0.05）。对于BE、SP和ES，应用粘合剂改善了水老化复合材料的修复粘结强度（p < 0.05），但添加硅烷偶联剂不能（p > 0.05）。AP组的mu SBS显著增加，对照组< SE组< PB组（p < 0.05）。结论：微混合复合材料比纳米填充复合材料更适合用于复合材料修复，这是由于与暴露的、较大的二氧化硅填充物的粘附。纳米填充复合材料中的S-PRG填料和纳米团簇填料对所测试的粘接剂的修复粘接性能有一定的改善作用。
Purpose: To evaluate the effect of water aging of adherend composite on repair bond strength to nanofilled composites with specific fillers using different bonding agents.Materials and Methods: Three nanofilled composites - Beautifil II with S-PRG filler (BE) / Filtek Supreme ultra with nanocluster filler (SP) / Estelite Sigma Quick (ES) - and one microhybrid composite, Clearfil APX (AP), were used in this study. The composite disks were immersed in water for different durations (immediate, 1 week, 2 weeks or 1 month), and then the polished surfaces were treated with one of three bonding agents - no treatment (control), application of Clearfil SE One (SE), application of Clearfil SE One plus Clearfil Porcelain Bond Activator (PB) - then filled with a repair composite. The bonded composite disks were subjected to the microshear bond strength (mu SBS) test. Additionally, water sorption (W-sp) and solubility (W-sl) of the resin composite were measured. The pSBS data were was statistically analyzed using a three-way ANOVA and t-test with Bonferroni correction for multiple comparisons.Results: Water aging of adherend composite affected the repair bond strength (p < 0.05). For BE, SP, and ES, application of an adhesive agent improved repair bond strengths to water-aged composites (p < 0.05), but adding a silane coupling agent could not (p > 0.05). For AP, the mu SBS significantly increased, with control group < SE group < PB group (p < 0.05).Conclusion: Microhybrid composite was a more suitable material for composite repair than nanofilled composite, due to adhesion to exposed, larger silica fillers. S-PRG filler and nanocluster filler in the nanofilled composites played a slight role in improving their repair bonding performances with the bonding agents tested.