应用咀嚼效能结和PAR指数综和评价正畸治疗术后疗效

Use of masticatory efficiency and PAR index in assessing the curative effect of adult patients after orthodontic treatment

目的通过研究不同特征患者在正畸术后的咀嚼效能和PAR指数,进而探讨可有效预测患者的预后和咀嚼功能改变的重要因子。方法以正畸术后5～6个月12～35岁的患者110名为研究对象,利用吸光度法测量咀嚼效能,通过多元回归分析判断影响治疗后咀嚼效能的因素。结果咀嚼次数、覆、错类型都与咀嚼效能有相关性,覆与咀嚼效能成正相关。结论解除深覆对改善咀嚼功能,获得好的疗效有着重要的意义。将PAR指数和咀嚼效能结和起来看待正畸疗效会更全面。

Objective To study the masticatory efficiency and PAR index in patients after orthodontic treatment which have different characteristics,so as to explore the key factors which can influence the masticatory efficiency of patients after orthodontic treatment and effectively predict the prognosis of patients. Methods a selection of 110 patients aged 12 ～ 35 years old which in the period of 5 ～ 6 months after the orthodontic treatment as study,measure the masticatory efficiency by absorbance method and judge factors which can influence the masticatory efficiency through multiple regression analysis. Results Overbite,type of malocclusion and masticatory efficiency are correlated,overbite and chewing performance are positive correlation. Conclusion Lifting deep overbite to improve the chewing function,access to good effect has an important significance. PAR index is combined with masticatory efficiency,and then the approach to evaluation orthodontic efficacy will be more comprehensive.