渗透树脂在正畸邻面去釉后的防龋效果临床研究

Effect of resin infiltration on caries prevention after interproximal reduction: A clinical study

目的研究渗透树脂在正畸邻面去釉后的防龋效果。方法使用渗透树脂(ICON)和氟化物分别对邻面去釉后的牙釉质进行处理。采用半口对照试验,随机将患者分为两组:A组将试验组渗透树脂应用在患者口腔1、3象限,将对照组氟化物应用在患者口腔2、4象限;B组将渗透树脂应用在患者口腔2、4象限,将氟化物应用在患者口腔1、3象限。术后在第3、6、9、12个月进行随访,采用外观观察和放射检查两种方法进行评估,观察渗透树脂与氟化物在不同时间段的防龋效果。结果两处理组在术后3、6、9个月的ICDAS-Ⅱ分级和放射检查比较,差异均无统计学意义(P>0.05)。术后12个月,ICON组的ICDAS-Ⅱ评分及放射检查评分均显著小于3M Clinpro^TM White Varnish组,差异有统计学意义(P<0.05)。结论 ICON渗透树脂可以很好地预防邻面去釉后的釉质发生龋坏。

Objective To evaluate the effect of resin infiltration to prevent demineralization and caries formation after interproximal reduction. Methods Patients after interproximal reduction procedures were treated by resin infiltration and fluoride varnish according to the manufacturer’s instructions. They were randomly divided into two groups following a split-mouth study. In group A, resin infiltration was applied in quadrants 1 and 3, and fluoride varnish was applied in quadrants 2 and 4. In group B, resin infiltration was applied in quadrants 2 and 4, while the fluoride varnish was applied in patients’ oral quadrants 1 and 3. The patients were followed for twelve months, during which their teeth were checked every three months. To investigate the differences in frequencies and ranks of demineralization and caries formation at different time points between the two groups, two methods of visual inspection and radiological examination were carried out. Results The results showed that there was no statistically significant difference between the two groups during the first 9 months. While, in the 12 th month, the scores of ICON group in visual inspection and radiological examination were significantly less than the control group, and there was significant difference. Conclusion ICON resin infiltration can well prevent enamel demineralization and caries formation after interproximal reduction.