上海口腔医学 ›› 2016, Vol. 25 ›› Issue (1): 38-41.

• 论著 • 上一篇    下一篇

不同酸蚀方法对非龋性硬化牙本质黏结强度的影响

刘可乐,张晓芳,魏鑫   

  1. 中国医科大学口腔医学院 干诊科 辽宁省 口腔疾病重点实验室,辽宁 沈阳 110002
  • 收稿日期:2015-03-02 修回日期:2015-06-10 出版日期:2016-02-25 发布日期:2016-03-09
  • 通讯作者: 张晓芳,Tel:024-22891863,E-mail:zhangxf1992@126.com E-mail:774166543@qq.com
  • 作者简介:刘可乐(1988-),女,硕士,医师
  • 基金资助:
    辽宁省科技计划项目(2009225001-2)

Influence of different acid etching modes on bond strengths to non-carious sclerotic dentin

LIU Ke-le, ZHANG Xiao-fang, WEI Xin.   

  1. VIP Department, School of Stomatology, China Medical University. Shengyang 110002, Liaoning Province, China
  • Received:2015-03-02 Revised:2015-06-10 Online:2016-02-25 Published:2016-03-09

摘要: 目的: 测试不同酸蚀方法处理非龋性硬化性牙本质对黏结强度的影响,为临床工作提供参考。方法: 牙颈部具有典型楔状缺损的前磨牙共30颗,随机分为2大组,分别应用全酸蚀黏结系统AdperTM Single Bond2(ASB2) 与自酸蚀黏结系统AdperTM Easy one(AEO),每大组各分为3个亚组(ASB21、ASB22、ASB23、AEO1、AEO2、AEO3),每亚组5颗牙。其中,ASB21组:磷酸处理15 s后ASB2处理15 s,ASB22组:磷酸处理30 s后ASB2处理15 s,ASB23组:磷酸处理15 s后ASB2处理 30 s;AEO1 1组:AEO1处理20 s;AEO2组:AEO处理40 s;AEO3组:磷酸处理15 s后AEO处理20 s。进行树脂充填后,室温下放入蒸馏水中24 h后取出,制作成黏结面积为1 mm2的哑铃型试件,微力材料试验机测量各试件的微拉伸黏结强度。采用SPSS17.0软件包对数据进行单因素方差分析,多重比较采用SNK-q检验。结果: 各组微拉伸黏结强度依次为AEO3组> ASB22组> ASB23组> ASB21组> AEO2组> AEO1组,AEO3组的黏结强度最高,AEO1组最低,差异显著(P<0.05);ASB22组黏结强度低于AEO3组高于其他组,差异显著(P<0.05)。结论: 使用全酸蚀黏结系统,加倍延长磷酸处理时间,黏结强度增加。使用自酸蚀黏结系统,联合磷酸处理或延长自酸蚀黏结剂处理时间,均会使黏结强度增加。其中,磷酸处理硬化性牙本质15 s联合自酸蚀黏结剂处理20 s获得的黏结强度最高。无论使用全酸蚀系统或自酸蚀系统,磷酸处理硬化性牙本质15 s联合自酸蚀黏结剂处理20 s获得的强度最好,单独使用自酸蚀黏结系统黏结强度最差。

关键词: 非龋性硬化牙本质, 全酸蚀, 自酸蚀, 黏结强度

Abstract: PURPOSE: To evaluate the effect of different acid etching modes on bond strength between composite resin and non-carious sclerotic dentin, and to provide references for clinical application. MOTHODS: Thirty premolars with naturally-occurring non-carious cervical lesions were divided into 2 groups based on self-etch adhesive system AdperTM Easy one (AEO) and total-etch adhesive system AdperTM Single Bond2 (ASB2). Each group was further divided into 3 subgroups (ASB21, ASB22, ASB23, AEO1, AEO2, AEO3) and subjected to the following processing: ASB21 subgroup was etched for 15 s with 35% phosphoric acid and coated with binder for 15 s; ASB22 subgroup was etched for 30 s with 35% phosphoric acid and coated with binder for 15 s; ASB23 subgroup was etched for 15 s with 35% phosphoric acid and coated with binder for 30 s; AEO1 subgroup was only etched with binder for 20 s; AEO2 subgroup was etched with binder for 40 s; AEO3 subgroup was etched for 15 s with 35% phosphoric acid and coated with binder for 20 s. The samples were restored with composite resin; 24 h after saved in distilled water at room temperature, the teeth were cut into dumbbell-shaped specimens with surface areas of approximately 1.0 mm2. The microtensile bond strength (μTBS) was detected and evaluated by one-way ANOVA and SNK-q test using SPSS 17.0 software package. RESULTS: μTBS was given in MPa: AEO3> ASB22> ASB23> ASB21>AEO2>AEO1, AEO3 resulted in statistically highest bond strength and AEO1 had the lowest bond strength(P<0.05), ASB22 acquired bond strength just lower than AEO3 (P<0.05). CONCLUSIONS: Use of total-etch adhesive system increasing the etching time of phosphoric time can enhance bond strength. For self-etch adhesive system, both duplicated the time of adhesive treatment and use of phosphoric acid can improve the bond strength. Use of phosphoric acid to etch for 15 s and coated with self-etch adhesive system for 20 s achieved the highest bond strength. In either self-etch or total-etch adhesive system, use of phosphoric acid to etch for 15 s and coated with self-etch adhesive system for 20 s achieved optimal bond strength, there was the lowest bond strength when the self-etch adhesive system used as recommended time.

Key words: Non-carious sclerotic dentine, Total-etch adhesive system, Self-etch adhesive system, Microtensile bond strength

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