应用 PAR 指数评价80例患者正畸治疗效果的影响因素分析

目的：探讨 PAR 指数评价正畸治疗的患者临床疗效的影响因素。方法：采集80例患者的一般信息、诊治信息、调查问卷以及模型测量等数据，应用 PAR 指数进行分析。结果：42．5％患者改善，56．3％患者极大改善。不同性别、分类、是否拔牙之间，治疗后 PAR 以及 PAR 减少率无显著差异，不同安氏分类之间，治疗前 PAR 和治疗后 PAR 减少量有显著差异。治疗前 PAR 分别与 PAR 减少量及减少率存在线性回归关系。治疗后安氏Ⅲ类患者 PAR 减少量最明显，Ⅱ类次之，Ⅰ类较低。结论：性别、分类、是否拔牙对 PAR 所反映的改善程度的影响不显著。不同安氏分类下 PAR 所反映的错(牙合)畸形较重的患者改善程度较明显。

Peer assessment rating analysis of the influencing factors of treatment outcomes of 80 cases underwent ortho-dontic therapy

Objective:To analyze some clinical factors influencing the treatment outcomes by Peer assessment rating(PAR).Meth-ods:80 cases underwent othordontic therapy were included.The clinical data and treatment effects were analyzed by PAR,the behav-ioral and psychological evaluation of the subjects was collected and analyzed by statistics.Results:Improvement and great improvement were achieved in 42.5% and 56.3% of the patients.There was no significant difference in different groups of gender,bone-facial con-tour classification and tooth extraction,but there was a significant difference in different groups of Angle classification in terms of pre-treatment PAR and reduction of PAR.There was a linear regression between pre-treatment PAR and reduction of PAR and percentage reduction of PAR,respectively.PAR showed more decrease in the patients of Angle class III classification,than in those with Class II and Class I.Conclusion:PAR is less influenced by gender,bone-facial contour,classification and tooth extraction.PAR evaluation shows that the more severe initial Angle malocclusion the patients have,the more significant improvement they may finally obtain.