两种方法对早期釉质脱矿治疗效果的体外实验研究

发布时间：2019-01-20 20:01

【摘要】：目的:比较渗透性树脂和氟化泡沫对早期釉质脱矿后的治疗效果。方法:用部分饱和酸缓冲脱矿液将75个人离体前磨牙制备成早期釉质脱矿模型后随机分为3组(n=25),分别采用去离子水(A组)、氟化泡沫(B组)、渗透性树脂(C组)处理脱矿釉质表面;然后浸泡于人工唾液中37℃恒温水浴放置8周,治疗前和治疗后即刻、4周、8周各时间点用分光光度比色仪检测每个牙的L值;用扫描电镜观察治疗4周后的表面形态。结果:脱矿釉质经3种方法处理后其L值均较治疗前减小,C组减小的幅度最大,B组次之,A组最小,除治疗后即刻A组与B组△L无统计学差异(P0.05)外,其余各时间点各组间△L差异均有统计学意义(P0.05);A组和B组釉质表面粗糙而不均匀,其表面虽有矿物质沉积,但仍有大小不等的凹陷,而C组釉质表面较光滑均匀,无明显凹陷。结论:渗透性树脂和氟化泡沫均可治疗釉质早期脱矿,其中以渗透性树脂的短期效果最明显。
[Abstract]:Objective: to compare the therapeutic effect of permeable resin and fluorinated foam on early enamel demineralization. Methods: 75 individual premolars were made into early enamel demineralization model with partially saturated acid buffer demineralization solution and were randomly divided into 3 groups (n = 25), which were treated with deionized water (group A) and fluorinated foam (group B). The surface of demineralized enamel was treated with permeable resin (group C). Then immersion in artificial saliva at 37 鈩，

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