EDTA和EDC预处理对两步法自酸蚀粘接剂粘接强度的影响

doi:10.13701/j.cnki.kqyxyj.2020.03.008

口腔医学研究 ›› 2020, Vol. 36 ›› Issue (3): 221-225.DOI: 10.13701/j.cnki.kqyxyj.2020.03.008

EDTA和EDC预处理对两步法自酸蚀粘接剂粘接强度的影响

邓婷^1,2, 刘敏^1,2, 刘雯^1,2, 王雯^1,2, 谢翠柳^1,2*

1. 西南医科大学附属口腔医院修复科四川泸州 646000;
2. 西南医科大学口颌面修复重建与再生实验室四川泸州 646000

收稿日期:2019-09-02 出版日期:2020-05-15 发布日期:2020-05-15
通讯作者: 谢翠柳,E-mail:xiecl10@163.com
作者简介:邓婷(1992~),女,四川自贡人,硕士在读,主要从事口腔修复种植方向研究工作。
基金资助:
西南医科大学附属口腔医院青年项目(编号:201806)

Effect of Pretreatment with EDTA and EDC on Bond Strength of Two-step Self-etching Adhesive

DENG Ting^1,2, LIU Min^1,2, LIU Wen^1,2, WANG Wen^1,2, XIE Cuiliu^1,2*

1. Department of Prosthodontics, the Affiliated Stomatology Hospital of Southwest Medical University, Luzhou 646000, China;
2. Oral & Maxillofacial Reconstruction and Regeneration Laboratory, Southwest Medical University, Luzhou 646000, China

Received:2019-09-02 Online:2020-05-15 Published:2020-05-15

摘要/Abstract

摘要： 目的：探讨EDTA和EDC预处理对两步法自酸蚀粘接剂粘接强度及粘接耐久性的影响。方法：第三磨牙56颗根据表面处理方式及是否老化处理随机分成8组(n=7),A、A1组:Clearfil SE Bond;B、B1组:17％EDTA+Clearfil SE Bond;C、C1组:0.3 mol/L EDC+Clearfil SE Bond;D、D1组:17％EDTA+0.3 mol/L EDC+Clearfil SE Bond。A1、B1、C1、D1组试件进行老化处理。每组随机抽取5个试件检测粘接强度,观察、统计断裂模式;每组其余2个试件观察纵剖面形貌。结果：D组即刻粘接强度最高,与A组比较差异有统计学意义(P<0.05);C组与C1组、D组与D1组比较差异无统计学意义(P>0.05),具有粘接耐久性。混合断裂是主要的断裂模式,各组比较差异无统计学意义。B、B1和D、D1组混合层树脂突增多增长,C1、D1组混合层未见明显裂纹。结论：17%EDTA+0.3 mol/L EDC预处理可以提高两步法自酸蚀粘接剂的即刻粘接强度,并具有粘接耐久性。

关键词: 乙二胺四乙酸, 碳二亚胺盐酸盐, 牙本质, 粘接强度

Abstract: Objective: To study the effect of pretreatment with EDTA and EDC on the bond strength of two-step self-etching adhesive. Methods: 56 third molars were randomly divided into 8 groups according the dentin surface treatment and whether or not aging (n=7), group A and A1: Clearfil SE Bond; group B and B1:17% EDTA+Clearfil SE Bond; group C and C1:0.3 mol/L EDC+Clearfil SE Bond; group D and D1:17% EDTA+ 0.3 mol/L EDC+Clearfil SE Bond. Specimens of A1, B1, C1 and D1 were conducted aging test. 5 specimens were randomly selected from each group to test the bond strength and analyze the failure mode. The longitudinal profile morphology of the remaining 2 specimens in each group was observed. Results: Group D had the highest immediate bond strength, and the difference with group A was statistically significant (P<0.05). The difference between group C and C1, group D and D1 was no statistically significant (P>0.05). Mixed fracture was the main failure mode, and the difference was no statistically significant. Resin tags in group B, B1, D and D1 were more and longer than other groups, and no cracks were found in the mixing layer of group C1 and D1. Conclusion: Pretreatment with 17% EDTA+0.3 mol/L EDC can improve immediate dentin bond strength of two-step self-etching adhesive and the adhesion is durable.

Key words: ethylene diamine tetraacetic acid, carbodiimide, dentin, bond strength

邓婷, 刘敏, 刘雯, 王雯, 谢翠柳. EDTA和EDC预处理对两步法自酸蚀粘接剂粘接强度的影响[J]. 口腔医学研究, 2020, 36(3): 221-225.

DENG Ting, LIU Min, LIU Wen, WANG Wen, XIE Cuiliu. Effect of Pretreatment with EDTA and EDC on Bond Strength of Two-step Self-etching Adhesive[J]. Journal of Oral Science Research, 2020, 36(3): 221-225.

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EDTA和EDC预处理对两步法自酸蚀粘接剂粘接强度的影响

Effect of Pretreatment with EDTA and EDC on Bond Strength of Two-step Self-etching Adhesive

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