应用PAR指数对332例错畸形矫治结果的评估

目的评估和分析影响矫治结果的相关因素。方法采用ＰＡＲ指数对３３２例使用固定矫 治器治疗的治疗前后模型进行评估分析。结果（１）最终的矫治结果与性别无关,但女性较男性在精细 调整方面要求更高。（２）年轻的患者相对年长者较易取得更完善的矫治效果。（３）方丝弓矫治器和Ｂｅｇｇ 矫治器同样有效,但各有优缺点。（４）矫治结果的改善程度与错程度有关,错程度轻、非拔牙者,矫治 结果的改善程度较低。（５）不对称拔牙是造成中线偏斜的主要原因。结论制定合理的矫治方案,选用 合适的矫治方法和适当的矫治时机,是取得高水平矫治结果的关键。

Evaluation of orthodontic treatment outcome in 332 cases of malocclusion by means of PAR index

Objective To assess and investigate correlative factors affecting the outcome of orthodontic treatment. Method Pre- and post-treatment study models of three hundred and thirty two patients treated by the fixed appliance were assessed using the Peer Assessment Rating (PAR) index. Results No correlation was found between the patients' age and sex with the final outcome of orthodontic treatment. However, it was noted that female patients were more critical about their final aesthetic alignment than males. Edgewise and Begg appliances were both found to be effective for treatment with their merits and demerits. The percentage of improvement was related to the PAR score before treatment, the higher the initial score, the higher percentage of improvemnt after treatment. Non-extraction cases showed lower score and lower pertentage of improvement. Unilateral extraction was the main cause of midline discrepancy. Conclusion The key to better Orthodontic results were the correct treatment planning, the proper choice of appliance and timing of orthodontic treatment.