摘要
目的:对伴口呼吸安氏Ⅱ1错牙合患者上气道结构的X线表现特征进行分析,为临床诊断及选择合理的治疗方案提供理论依据。方法:以30例恒牙期口呼吸安氏Ⅱ1错牙合为研究对象,以30名恒牙初期正常牙合儿童为对照组,用图像数字化X线头颅定位摄片仪,分别获得两样本上气道结构的测量值,进行统计学分析。结果:伴口呼吸安氏Ⅱ1错牙合的骨性鼻咽、舌咽部最小距离和后气道间隙等测量值,均明显小于对照组;软腭长、软腭厚和舌底-眼耳平面角则明显增大,而软腭-舌接触长度、舌体高度和软腭-腭平面角则明显减小,其变化有统计学差异;舌骨也表现为向下、向后移位,在错牙合组和对照组间存在显著性差异。结论:由于上气道矢状径减小、下颌后缩和舌及舌骨的下降,使口呼吸安氏Ⅱ1错牙合患者的上气道通气能力下降。
Objective： To study the Changes on frame of upper airway cephelometrie in Angles Ⅱ^1 Malocclusion with mouth-breathing, and provide basis for clinical. Method： 30 patients with Angles Ⅱ^1 malocclusion of topical mouth breathing were divided into test group and 30 cases of right-dentition were divided into contrasted group. The eephalometrie measuring structural of upper airway changes between test group and contrasted group were measure and analysis. And the statistic test was done. Result：The results show ： the PNS-Ba、P-T and TB-TPPW were less thanthe contrasted group; PNS-U, SPP1-SPA and V-T/FH were increased. But UC-LC, TD-VT and PNS-U/PP were decreased. Position of hyoid changed between test group and contrasted group. There is statistic deference. Conelusioa： The aerate ability of upper airway in mouth breathing sufferer were decreased. Because the sagittal dimensions of upper airway were decreased. The mandible was moved back and the tongue descend.
出处
《临床口腔医学杂志》
2005年第9期523-525,共3页
Journal of Clinical Stomatology
基金
云南省自然科学基金资助项目(2004C0069M)
云南省教育厅科学研究基金资助项目(04Y879C)
