| 唐成芳,左艳萍,曾辉,等.松香局部应用对牙本质小管封闭效果的实验研究[J].安徽医药,2019,23(7):1455-1458. |
| 松香局部应用对牙本质小管封闭效果的实验研究 |
| Sealing effects of Rosin applied locally on dentin tubules in vitro |
| 投稿时间：2018-04-08 |
| DOI： |
| 中文关键词: 天然松香 松香酸 牙本质过敏 牙本质小管 |
| 英文关键词: Nature rosin Pine resin acids Dentin hypersensitivity Dentin tubule |
| 基金项目:国家自然科学基金(81641150),陕西省科技厅社会发展科技攻关项目(2016SF-148),陕西省卫生厅扶植项目(2016D022)； 西安医学院配套基金(2016PT35) |
|
| 摘要点击次数: 1841 |
| 全文下载次数: 505 |
| 中文摘要: |
| 目的 观察天然松脂局部应用对牙本质小管的封闭效果以及其浓度效应,为其单独防治牙本质过敏提供实验依据。方法 制备牙本质块80个,采用随机数字表法随为8组,每组10个,酸蚀30 s,分别用无水乙醇,氟涂膜,10%,20%,30%,40%,50%和60%松香乙醇溶液涂布牙本质,场发射扫描电镜观察牙本质表面及剖面的显微形貌,并测量牙本质小管开口面积(ADTO)、牙本质小管开口相对面积(PADTO)和树脂突长度(LTD)。结果 各松香乙醇组ADTO,PADTO均显著低于乙醇组(P＜0.05)。30%,40%,50%和60%松香乙醇组ADTO,PADTO与氟涂膜组差异无统计学意义(P＞0.05),均显著低于10%和20%松香乙醇组(P＜0.05)。扫描电镜见乙醇组牙本质表面牙本质小管完全开放,管壁较疏松；氟保护漆组牙本质小管完全封闭,未见明显树脂突形成；松香乙醇组牙本质小管呈不同程度封闭,剖面可见长度不等的树脂突形成。结论 松香乙醇溶液局部应用可快速封闭开放的牙本质小管,形成树脂突,且50%松香溶液即可达到较好即刻封堵效果。松香可通过封堵开放的牙本质小管防治牙本质过敏。 |
| 英文摘要: |
| Objective To observe the sealing effect natural rosin applied locally on dentin tubules,and provide an experimental basis for the prevention and treatment of dentin hypersensitivity.Methods Eighty dentin blocks were prepared and randomly divided into 8 groups (n=10).The dentin surfaces were etched for 30 s,then were painted with absolute ethanol,fluoride vanish,10%,20%,30%,40%,50% and 60% natural rosin ethanol solution respectively.The micro morphology of dentin surface and longitudinal section were observed using field emission scanning electron microscope (FESEM),and the area of dentin tubular openings (ADTO),percentage area of dentin tubular openings (PADTO) and the length of resin tags (LRT) were also measured.Results The ADTO and PADTO in all rosin ethanol groups were significantly lower than that in the ethanol group (P＜0.05).The ATO and PATO in 30%,40%,50% and 60% rosin ethanol group had no significant difference with that in fluoride vanish group (P＞0.05),which were all significantly lower than that in 10% and 20% rosin ethanol group (P＜0.05).The dentin tubules were opened completely in ethanol group,and the walls of tubule were looser.The dentin tubules of dentin surface were sealed completely in fluoride vanish group,and no obvious resin tags were formed.The dentin tubule were sealed in varying degrees on dentin surface and resin tags with different lengths were formed on longitudinal section according to rosin concentrations in rosin ethanol groups.Conclusion Local application of rosin alcohol solution can quickly seal the opened dentin tubules and form resin tags.50 % rosin alcohol solution can achieve a better immediate sealing effect of dentin tubules.Rosin can prevent dentin hypersensitivity by sealing dentin tubules. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
