Pancherz分析法在咬合前导型功能性矫正器疗效评价中的应用

目的 探讨Paneherz分析法在咬合前导型功能性矫正器治疗骨性Ⅱ类错He疗效评价中的可信度、精确范围及评价体系特质。方法应用Pancherz分析法．对可摘式头帽肌激动器治疗的骨性Ⅱ类错He患者的X线头影片进行测量分析。结果 Pancherz分析法有如下特质：(1)建立了稳定的坐标系，从而能精确测定牙或颌骨的位置改变。(2)游离评估骨性改变及牙性代偿，从而客观地评价咬合前导矫治对下颌生长发育的影响。(3)综合考察前后段牙性代偿变化及其差值，从而反映骨性改建的程度。结论 Pancherz分析法为咬合前导型功能性矫正器的疗效评价提供了可靠的依据。

The Feasibility and Reliability of Pancherz''s Analysis in Evaluating the Treatment Effects of Bite-Jumping on Skeletal Class Ⅱ Malocclusion

Objective This study was designed to c on duct an in-depth evaluation on Pancherz's analysis.Methods A typical Class II c ase with bite-jumping therapy was selected for the whole process of Pancherz's Analysis.The skeletal growth modification and dental compensation were examined and portioned for their respective contribution to the correction of excessive o verjet and Class II molar relationship.Results The following traits and properti es of Pancherz's analysis were found:(1)A fixed reference system characterized by SN and OLp was established which led to an accurate detection of the moving objects.(2)Skeletal and dental changes were separated for evaluation,which resul ted in a true assessment of the bite-jumping on growth pattern modification.(3)A segmental examination for dental changes indicated the magnitude of skeletal mo dification.Conclusion Pa nc he r z 's analysis is a feasible and reliable evalu ation system which could reflect with accuracy the skeletal and dental effects c aused by bite-jumping therapy.