渗透性树脂作用于脱矿釉质的扫描电镜观察

发布时间：2018-03-08 07:46

本文选题：渗透性树脂　切入点：釉质脱矿　出处：《口腔医学研究》2016年10期 　论文类型：期刊论文

【摘要】：目的:用扫描电镜观察渗透性树脂作用于脱矿釉质表面的微观形态。方法:将离体牙12颗分为6颗健康釉质组,6颗脱矿釉质组。建立人工脱矿模型。对脱矿釉质表面进行光固化渗透树脂治疗,然后按照电镜标本制作要求,脱水喷碳,扫描电镜观察渗透性树脂使用套装中的盐酸凝胶对釉质表面处理前后及渗透性树脂作用于脱矿釉质表面的微观结构。结果:盐酸凝胶在健康牙釉质表面脱矿深度只有10μm左右,不会对健康釉质造成伤害;盐酸凝胶可以彻底清除脱矿釉质表面的钙化层,使渗透性树脂充分渗透入脱矿釉质体部,但在树脂突之间及釉质体部偶尔可见裂隙存在。结论:渗透性树脂可以在脱矿釉质表面形成规则的网状结构,良好的封闭了脱矿釉质表面。
[Abstract]:Objective: to observe the microscopic morphology of demineralized enamel surface acting on permeable resin by scanning electron microscope. Methods: 12 teeth were divided into 6 healthy enamel groups and 6 demineralized enamel groups. Artificial demineralization model was established. The surface was treated with light curing osmotic resin, Then according to the requirements of electron microscope specimen preparation, dehydration and spraying carbon, Scanning electron microscope (SEM) was used to observe the microstructure of enamel surface treated with hydrochloric acid gel and the effect of permeable resin on demineralized enamel surface. Results: the demineralization depth of hydrochloric acid gel on enamel surface of healthy teeth was only about 10 渭 m. No harm to the healthy enamel; hydrochloric acid gel can completely remove the calcification layer on the demineralized enamel surface, so that the permeable resin can fully penetrate the demineralized enamel body, However, there are occasional cracks between resin processes and enamel body. Conclusion: permeable resin can form regular reticular structure on demineralized enamel surface and seal the demineralized enamel surface well.
【作者单位】：秦皇岛市第一医院体检中心口腔科;北京口腔医院;
【基金】：国家自然科学基金(编号:81470779)
【分类号】：R783.5

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