目的:通过研究安氏Ⅱ1类错畸形患者治疗前、后面部彩色照片的视觉模拟评分变化,探讨正畸治疗对安氏Ⅱ1类错畸形患者面部容貌的影响。方法:从本院就诊正畸患者中随机挑选男女各40例,由评分小组对每例患者的一组照片给出视觉模拟评分,选择视觉模拟评分均数与中位数最接近且标准差较小的男女各1例的照片作为参照照片。然后对安氏Ⅱ1类错畸形患者治疗前、后2组照片进行视觉模拟评分。随机挑选40例治疗结束的安氏Ⅱ1类错畸形患者,将每位患者矫治前或治疗后的相片及同性别的参照照片作为一个单位同时显示,按顺序随机排列,由评分小组进行视觉模拟评分。对治疗前、后的评分用SPSS11.0软件包进行单样本t检验及配对t检验。结果:选出了男女各1例患者的照片作为参照照片;安氏Ⅱ1类错畸形患者治疗前总体均数为43.839,治疗后总体均数为48.328。假设人群中评分值总体均数为50,将所有患者治疗前评分做单样本t检验,P<0.01,差异有统计学意义;治疗后评分值做单样本t检验,P﹥0.05,差异无统计学意义。将治疗前和治疗后评分的总体均数进行配对t检验,P<0.01,差异有统计学意义,治疗后高于治疗前。结论:安氏Ⅱ1类错畸形明显影响患者的面部容貌,正畸治疗可以明显改善安氏Ⅱ1类错畸形患者的面部容貌,使之达到普通人群水平。 OBJECTIVE: To investigate the effect of orthodontic treatment on the face appearance of patients with Class Ⅱ division 1 malformations by studying the visual analogue scale changes of the color photographs of the front class Ⅱ1 patients with malocclusion. Methods: Forty male and female patients were selected randomly from our hospital for orthodontic treatment. The visual analogue scale was given to each group of patients by the scoring group. The visual analogue scale was the closest to the median and the standard deviation was Photograph of one small woman and one woman as a reference photograph. Then the Class Ⅱ 1 malformation patients with malformations before and after treatment, two groups of photos were visually simulated scoring. 40 patients were randomly selected for the treatment of Class Ⅱ division malocclusion patients, each patient before treatment or after treatment of photos and same-sex reference photos as a unit at the same time, in order of random arrangement, by the score panel visual simulation score. The scores before and after treatment were analyzed by SPSS 11.0 software package for single-sample t-test and paired t-test. Results: One male and female patient were selected as the reference photographs. The average number of patients with Class Ⅱ 1 malformations before treatment was 43.839 and the overall average number after treatment was 48.328. Assuming the population average rating score of 50, all patients before treatment score single-sample t test, P <0.01, the difference was statistically significant; after treatment, the score value of single-sample t test, P> 0.05, the difference was not statistically Significance of learning. The mean before and after treatment scores were paired t test, P <0.01, the difference was statistically significant after treatment than before treatment. Conclusion: Class Ⅱ 1 malocclusion significantly affects the facial appearance of patients. Orthodontic treatment can significantly improve facial features of patients with Class Ⅱ division malocclusion so as to reach the level of common people.