磷酸预处理对两步法自酸蚀粘接剂与牙釉质粘接强度的影响

doi:10.13701/j.cnki.kqyxyj.2019.08.007

口腔医学研究 ›› 2019, Vol. 35 ›› Issue (8): 748-751.DOI: 10.13701/j.cnki.kqyxyj.2019.08.007

磷酸预处理对两步法自酸蚀粘接剂与牙釉质粘接强度的影响

李秀花¹, 于鹏², 田福聪³, 王晓燕^2*

1. 北京大学口腔医学院·口腔医院第五门诊部北京 100020;
2. 北京大学口腔医学院·口腔医院牙体牙髓科北京 100081;
3. Department of Endodontics the Dental Collage of Georgia Augusta University, Augusta 30912,USA

收稿日期:2019-03-05 出版日期:2019-08-28 发布日期:2019-08-22
通讯作者: 王晓燕,E-mail:wangxiaoyan@pkuss.bjmu.edu.cn
作者简介:李秀花(1986~ ),女,山东淄博人,硕士,住院医师,主要从事牙体牙髓相关疾病的诊治。
基金资助:
中华口腔医学会青年科研基金树脂材料研究项目(编号:CSA-R2018-03)

Influence of Pre-phosphoric Acid Etching on Bonding Strength of Two-step Self-etching Adhesives to Enamel

LI Xiuhua¹, YU Peng², TIAN Fucong³, WANG Xiaoyan^2*

1. The Fifth Department of Peking University School and Hospital of Stomatology, Beijing 100020, China;
2. Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing 100081, China;
3. Department of Endodontics, Dental College of Georgia Augusta University, Augusta 300912, USA

Received:2019-03-05 Online:2019-08-28 Published:2019-08-22

摘要/Abstract

摘要： 目的:探讨磷酸预处理对两步法自酸蚀粘接剂SE BOND(SE)和VERSA(VE)釉质粘接强度的影响。方法:选用完好新鲜牛切牙,根据粘接剂和使用方法不同分为6组:SE①液+②液;磷酸+SE①液+②液;磷酸+SE②液;VE①液+②液;磷酸+VE①液+②液;磷酸+VE②液。测试各组的微拉伸粘接强度并观察断裂类型(n=48)。选择使用磷酸、SE①液、磷酸+SE①液、VE①液、磷酸+VE①液处理后的釉质样本进行扫描电镜观察。结果:SE①液+②液、磷酸+SE①液+②液、磷酸+SE②液的微拉伸粘接强度比较差异无统计学意义(P>0.05)。磷酸+VE①液+②液组明显高于VE①液+②液组(P<0.05)。电镜下,磷酸处理后,釉质表面脱矿明显,形成典型蜂窝状结构,SE①液和VE①液处理后的牙釉质表面仍被玷污层覆盖,脱矿不明显。结论:磷酸预处理釉质表面提高了VE的粘接强度;磷酸预处理釉质表面后,是否使用预处理液对SE和VE的微拉伸粘接强度无明显影响。

关键词: 两步法自酸蚀粘接剂, 釉质, 粘接强度, 磷酸

Abstract: Objective: To investigate the effects of phosphoric acid (P) etching pretreatment on the bonding strength of two-step self-etching adhesives SE BOND (SE) and VERSA (VE) to enamel. Methods: 18 fresh and intact bovine incisors were selected and divided into 6 groups according to using pre-phosphoric acid etching and primer (solution ①) or not: SE①+SE②; P+SE①+SE②; P+SE②; VE①+VE②; P+VE①+VE②; P+VE②. The micro-tensile bond strength (MPa) was measured. The enamel samples treated with phosphoric acid, SE① solution, phosphoric acid + SE① solution, VE① solution, and phosphoric acid + VE① solution were observed with SEM. Results: The difference of the microtensile bond strengths of SE①+SE②, P+SE①+SE②, and P+SE② was not statistically significant (P>0.05). The microtensile bond strengths of the P+VE①+VE② group was significantly higher than the VE①+VE② group (P<0.05). The SEM presented a typical honeycomb structure of enamel surface after phosphoric acid treatment. However, SE① solution and VE① solution did not change the enamel surface obviously, which was covered by the smear layer. Conclusion: Phosphoric acid pretreatment improves the microtensile bond strength of VE to enamel. When phosphoric acid pretreatment was applied on enamel surface, primer (solution ①) still be recommended.

Key words: two-step self-etching adhesive, enamel, bond strength, phosphoric acid

李秀花, 于鹏, 田福聪, 王晓燕. 磷酸预处理对两步法自酸蚀粘接剂与牙釉质粘接强度的影响[J]. 口腔医学研究, 2019, 35(8): 748-751.

LI Xiuhua, YU Peng, TIAN Fucong, WANG Xiaoyan. Influence of Pre-phosphoric Acid Etching on Bonding Strength of Two-step Self-etching Adhesives to Enamel[J]. Journal of Oral Science Research, 2019, 35(8): 748-751.

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磷酸预处理对两步法自酸蚀粘接剂与牙釉质粘接强度的影响

Influence of Pre-phosphoric Acid Etching on Bonding Strength of Two-step Self-etching Adhesives to Enamel

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