不同组合冲洗剂对纤维桩粘接的远期效果影响研究  

Study on Long-time Effect in Bonding Strength of Fiber Post by Different Combinations of Washing Agents

作　　者：陈学群[1] 刘冰[2] 杨甜甜[2] 徐若竹[1] 滕芸霞[1] 

机构地区：[1]深圳市龙岗区人民医院口腔科,广东深圳518172 [2]武汉大学口腔医学院口腔颌面外科

出　　处：《口腔医学研究》2011年第8期722-724,共3页Journal of Oral Science Research

基　　金：深圳市科技局资助项目(编号:201002157)

摘　　要：目的:探讨不同组合冲洗剂应用于纤维桩备桩过程,对纤维桩与根管牙本质粘接的远期效果的影响。方法:48颗新鲜单根离体前磨牙随机分为4组,备桩过程中分别使用不同组合冲洗剂。Ⅰ组:1%NaOCl+3%H2O2;Ⅱ组:1%NaOCl+1%Triton X-100;Ⅲ组:17%EDTA+1%NaOCl;Ⅳ组:17%EDTA+1%Triton X-100;常规粘桩后,各组件分别于37℃恒温水槽中再按存放不同时间(1d、3月、6月、12月)分组。运用万能材料试验机进行推出实验,检测纤维桩的粘接力,进行统计分析。结果:Ⅲ组各亚组试件粘接强度均明显高于Ⅰ组、Ⅱ组、Ⅳ组,统计分析结果P<0.05。各组中6个月亚组及12个月亚组试件的断裂方式均以含有牙本质内聚破坏的混合破坏为主。结论:备桩过程中使用17%EDTA溶液及1%NaOCl溶液组合冲洗,可显著提高纤维桩的粘接强度。Objective：To investigate the eccects of different combinations of washing agent on the long-term effect of fiber posts and root canal dentin bonding in the process of fiber post.Methods：48 fresh single isolated premolars were randomly divided into four groups.Group Ⅰ：1%NaOCl＋3%H2O2;Group Ⅱ 1%NaOCl＋1%Triton X-100;Group Ⅲ：17%EDTA＋1%NaOCl,Group Ⅳ：17%EDTA＋1%Triton X-100.After conventional fixed the post,the components were at 37℃ constant temperature water bath and stored at different times（1 day,3 months,6 months,12 months）.The universal testing machine was used to detect fiber post adhesion.Results：Long-term（12 months） effects of group Ⅲ was significantly higher than that in group Ⅰ,Ⅱ and Ⅳ（P0.05）.Fracture specimens of each group were cohesive failure within dentin hybrid damage-based.Conclusion：The preparation process of the post with 17% EDTA solution and 1% NaOCl solution can significantly increase the bonding strength of fibers post.

关 键 词：根管冲洗剂 纤维桩 粘接强度 

分 类 号：R781.05[医药卫生—口腔医学]