文章摘要
李 苑,苏 毅,江 飞,刘 丽,瞿灵丽.新型通用型粘接剂对牙本质粘接强度的体外研究[J].南京医科大学学报,2020,(5):754~758
新型通用型粘接剂对牙本质粘接强度的体外研究
Evaluation of bond strength of new universal adhesives to dentin a vitro study
投稿时间:2019-06-03  
DOI:10.7655/NYDXBNS20190526
中文关键词: 通用型粘接剂  牙本质粘接  微拉伸强度  酸蚀⁃冲洗  自酸蚀
英文关键词: universal adhesive  dentin bond  micro⁃tensile bond strength  etch⁃rinse  self⁃etch
基金项目:江苏省科技厅基础研究计划(自然科学基金)—青年基金项目(BK20180671)
作者单位
李 苑 南京医科大学口腔疾病研究江苏省重点实验室
南京医科大学附属口腔医院第三门诊部.江苏 南京 210029 
苏 毅 南京医科大学口腔疾病研究江苏省重点实验室
南京医科大学附属口腔医院第三门诊部.江苏 南京 210029 
江 飞 南京医科大学口腔疾病研究江苏省重点实验室
南京医科大学附属口腔医院综合诊疗科江苏 南京 210029 
刘 丽 南京医科大学口腔疾病研究江苏省重点实验室
南京医科大学附属口腔医院第三门诊部.江苏 南京 210029 
瞿灵丽 南京医科大学口腔疾病研究江苏省重点实验室
南京医科大学附属口腔医院第三门诊部.江苏 南京 210029 
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中文摘要:
      目的:评价3种通用型粘接剂和1种第7代粘接剂粘接牙本质在酸蚀?冲洗和自酸蚀处理模式下即刻和老化后微拉伸强度的差别。方法:128颗无龋第三磨牙根据不同粘接剂[Optibond Versa(OV),All?bond Universal(AU),Single Bond Universal(SU),Adper Easy One(AEO)]随机分为4组。每种粘接剂组各半分别使用酸蚀?冲洗和自酸蚀的模式。牙齿与复合树脂粘接后一半样本储存于37 ℃纯水中24 h,另一半经5 000次冷热循环老化实验。沿长轴将牙齿切割成约0.9 mm×0.9 mm柱状试件,测试其微拉伸强度,使用三因素方差分析法分析结果。未经冷热循环各组取切片于扫描电镜下观察粘接界面。结果:冷热循环、酸蚀模式分别与粘接剂种类因素存在两因素交互作用,经过冷热循环后和使用自酸蚀处理时3种通用型粘接剂的微拉伸强度均优于AEO(P < 0.001)。未经冷热循环时,OV、AU的微拉伸强度均>AEO;OV的微拉伸强度>SU。采用酸蚀?冲洗模式处理时,AU的微拉伸强度>AEO,AU的微拉伸强度>SU。结论:通用型粘接剂的微拉伸强度整体要优于第7代粘接剂,尤其是经过冷热循环后和自酸蚀处理时优势更明显。
英文摘要:
      Objective:This study aims to evaluate the instant and after thermocycling micro?tensile bond strength(μTBS) of three universal dentin adhesives and one 7th generation dentin adhesive under etch?rinse and self?etch strategies. Methods:Total 128 non?carious human third molars were randomly divided into 4 equal groups based on the dentin adhesives(Optibond Versa(OV),All?bond Universal(AU),Single Bond Universal(SU),Adper Easy One(AEO)). Two bonding modes(etch?rinse and self?etch)were employed for each half of each adhesive group. After bounding with resin,half of the specimens were stored in distilled water at 37 ℃ for 24 h and the other half were underwent a 5 000?cycle thermocycling ageing process. Along the long axis,the dentin?resin bonded teeth were sectioned into approximately 0.9 mm×0.9 mm specimens for the micro?tensile bond strength(μTBS) test. Statistical analyses were computed using three?way ANOVA. The resin?dentin interfaces of non?thermocycled specimens were observed by scanning electron microscopy(SEM). Results:There were 2?factors interactions between thermocycling and adhesives,etch modes and adhesives. After thermocycling or under self?etch strategie,3 universal adhesives had higher μTBS than AEO(P <0.001). While without thermocycling,the μTBS of OV and AU were higher than AEO,and the μTBS of OV were higher than SU. The μTBS of AU were higher than AEO and SU when under the etch?rinse strategy. Conclusion:Universal adhesives in this study had higher μTBS than the 7th generation adhesive,especially after thermocycling or under self?etch strategy.
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