CAJ | 학술논문

目的：评价渗透树脂对白垩斑颜色的改善效果。方法选取正畸治疗后前牙白垩斑患牙74颗进行渗透树脂治疗。术前、术后即刻、术后1周拍摄照片。效果分为3级：有效、部分有效和无效。部分有效的患牙测量术前、术后白垩斑面积（W）及患牙唇面的面积（T），计算出W︰T比值（%）。采用Kruskal-Wallis and Mann-Whitney统计方法进行分析。结果有效的患牙20颗（27%），部分有效的患牙54颗（73%），无效的患牙0颗。部分有效的患牙术前W︰T平均值是39.28%，术后W︰T平均值是9.46%（P<0.05）。结论渗透树脂能明显改善白垩斑患牙的美观，改善程度与患牙脱矿程度有关。
목적： 평개삼투수지대백성반안색적개선효과。방법 선취정기치료후전아백성반환아74과진행삼투수지치료。술전、술후즉각、술후1주박섭조편。효과분위3급：유효、부분유효화무효。부분유효적환아측량술전、술후백성반면적（W）급환아진면적면적（T），계산출W︰T비치（%）。채용Kruskal-Wallis and Mann-Whitney통계방법진행분석。결과 유효적환아20과（27%），부분유효적환아54과（73%），무효적환아0과。부분유효적환아술전W︰T평균치시39.28%，술후W︰T평균치시9.46%（P<0.05）。결론 삼투수지능명현개선백성반환아적미관，개선정도여환아탈광정도유관。
Objective To evaluate the effect of infiltration resin on masking white spot lesions by assessing the change in the white spot area. Methods Seventy-four maxillary anterior teeth with post-orthodontic decalcification teeth were investi-gated in this study. All teeth were treated with infiltration resin according to manufacturer recommendation. Standardized digital images were taken before, immediately after, and one week after treatment. The results were classified into three groups: com-pletely masked, partially masked and unchanged. The images of partially masked teeth were analyzed using an image analysis software. The size of the white spot lesion (W) and the whole-tooth facial surface (T) were measured, and the W︰T ratio(%) was calculated. Statistical evaluation of the lesions was performed using Kruskal-Wallis and Mann-Whitney tests. Results Among the 74 teeth, 20 (27%) teeth were classified as completely masked and 54 (73%) teeth were classified as partially masked; no tooth was unchanged. The W︰T ratio significantly decreased from 39.28% before treatment to 9.46% after treat-ment (P<0.05). Conclusion Resin infiltration is an effective treatment for masking white spot lesion. However, the masking effect depends on the lesion depth and activity.