功能性Ⅲ类错畸形患者牙尖交错位与后退接触位头影测量数据差异的研究  

Cephalometric discrepancy between intercuspal position and retruded contact position in patients with functional Angle Class Ⅲ malocclusion

作　　者：牛茜楠[1] 冯雪[1] 

机构地区：[1]第四军医大学口腔医学院口腔正畸科,西安710032

出　　处：《实用口腔医学杂志》2013年第3期380-384,共5页Journal of Practical Stomatology

摘　　要：目的:了解功能性安氏Ⅲ类错患者正畸治疗前牙尖交错位(ICP)、后退接触位(RCP)时头影测量数据的差异及其对治疗前诊断的意义。方法:选取25位功能性安氏Ⅲ类错患者,拍摄ICP、RCP位头颅定位侧位片各一张,对侧位片进行测量研究。结果:牙尖交错位、后退接触位时∠ANB有显著统计学差异,同时∠SNB、∠SND、∠SNPog、∠U1-L1、Wits、面角、颌凸角、上下齿槽座角、下颌平面角、Y轴角、Z角和TWEED分析法中FMA均有统计学差异。结论:正畸治疗前对功能性安氏Ⅲ类患者牙尖交错位、后退接触位差异检查对诊断有重要意义。Objective： To study the difference of cephalometric tracing between intercuspal position（ICP） and retruded contact posi- tion（RCP） in patients with functional Angle Class Ⅲ malocclusion before orthodontic treatment. Methods： 25 functional Class m malocclusion patients were included. Lateral cephalographs were taken in ICP and RCP positions for cephalometric analysis. Results： The difference of∠ANB, ∠ SNB,∠SND, ∠ SNPog, ∠U1- L1,Wits, facial angle, angle of convexity, mandibular plane angle, Y ax- is, Z angle and FMA between the two positions was significant （ P 〈 0.05 ）. Conclusion： Attention should be paid for the cephalomet- ric discrepancy between ICP and RCP for diagnosis of functional classⅢ malocclusion.

关 键 词：功能性安氏Ⅲ类错[牙合] 牙尖交错位 后退接触位 

分 类 号：R783.5[医药卫生—口腔医学]