不同酸蚀方法对非龋性硬化牙本质黏结强度的影响  

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

作　　者：刘可乐 张晓芳[1] 魏鑫[1] 

机构地区：[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

出　　处：《上海口腔医学》2016年第1期38-41,共4页Shanghai Journal of Stomatology

基　　金：辽宁省科技计划项目(2009225001-2)

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Adper^(TM) Single Bond2(ASB2)与自酸蚀黏结系统Adper^(TM) Easy one(AEO),每大组各分为3个亚组(ASB2_1、ASB2_2、ASB2_3、AEO_1、AEO_2、AEO_3),每亚组5颗牙。其中,ASB21组:磷酸处理15 s后ASB2处理15 s,ASB2_2组:磷酸处理30 s后ASB2处理15 s,ASB2_3组:磷酸处理15 s后ASB2处理30 s;AEO_11组:AEO_1处理20 s;AEO_2组:AEO处理40 s;AEO_3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AEO_3组>ASB2_2组>ASB2_3组>ASB2_1组>AEO_2组>AEO_1组,AEO3组的黏结强度最高,AEO1组最低,差异显著(P<0.05);ASB2_2组黏结强度低于AEO_3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。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, AEOI, 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; AEOI 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 （~TBS） was detected and evaluated by one-way ANOVA and SNK-q test using SPSS 17.0 software package. RESULTS： txTBS 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 ad

关 键 词：非龋性硬化牙本质 全酸蚀 自酸蚀 黏结强度 

分 类 号：R781.2[医药卫生—口腔医学]