微研磨和渗透树脂联合应用治疗正畸后白垩斑的临床疗效评价

Evaluation on clinical efficacy of microabrasion treatments and resin infiltration in the treatment of post-orthodontic white spot lesions

目的评价微研磨和渗透树脂联合治疗正畸后白垩斑的临床疗效。方法80颗正畸后白垩斑患牙,均进行微研磨和树脂渗透联合治疗。分别于术前、术后1周、术后6个月、术后12个月拍摄口内数码照片进行临床效果评价。采用Image J软件测量术前和术后1周白垩斑(W)和唇面(L)的面积,计算白垩斑面积比(W/L),进行统计分析。观察术后6个月和12个月时是否有龋洞形成和牙面变色情况,评价其疗效稳定性。结果80颗患牙均完成治疗,36.3%(29/80)患牙为有效,63.7%(51/80)患牙为部分有效,无效为0。部分有效的患牙术前W/L平均值是27.52%,术后1周降至3.21%,两样本非参数经Wilcoxon秩和检验证实,差异有统计学意义(P<0.05)。术后6个月和12个月复查,均未见龋洞形成及牙面变色情况。结论微研磨和渗透树脂联合应用治疗正畸后牙面白垩斑的临床疗效较好,值得临床推广。

Objective To evaluate the clinical efficacy of microabrasion treatments and resin infiltration in the treatment of post-orthodontic white spot lesions. Methods All 80 involved teeth with post-orthodontic white spot lesions underwent microabrasion treatments and resin infiltration. Intraoral digital photos were taken before operation, 1 week after operation, 6 months after operation, and 12 months after operation for clinical effect evaluation. The area of the whitespot(W) and labial surface(L) were measured by Image J software before and 1 week after operation. The W/L was calculated and analyzed statistically. The caries cavity and tooth surface discoloration were observed at 6 months and 12 months after operation, and the stability of efficacy was evaluated. Results All 80 teeth were treated, 36.3%(29/80) of the teeth were effective, 63.7%(51/80) of the teeth were partially effective, and 0 of the teeth was ineffective. The average W/L of partially effective teeth before operation was 27.52%, which dropped to 3.21% 1 week after operation. The non-parameters of the two samples were confirmed by Wilcoxon rank sum test, and the difference was statistically significant(P<0.05). No caries cavity and discoloration were found at 6 and 12 months after operation. Conclusion Combination of microabrasion treatments and resin infiltration shows good clinical efficacy in the treatment of post-orthodontic white spot lesions, and it is worthy of clinical promotion.