恒牙早期骨性Ⅲ类错双期矫治后上气道间隙的变化  

Effects of two-phase treatment on the upper airway in skeletal Class Ⅲ malocclusions

作　　者：刘鹤婷[1] 张苗苗[1] 王旭[1] 刘迪[1] 翟玛丽[1] 

机构地区：[1]哈尔滨医科大学口腔医院正畸科,黑龙江哈尔滨150001

出　　处：《国际口腔医学杂志》2010年第4期409-412,共4页International Journal of Stomatology

基　　金：黑龙江省自然科学基金资助项目(D2004-40)

摘　　要：目的评价双期矫治对恒牙早期伴拥挤的骨性Ⅲ类错患者上气道矢状间隙的影响。方法选择恒牙早期且伴有牙列拥挤的骨性Ⅲ类错患者18例,均采用双期矫治,对治疗前(T1)、前方牵引后(T2)、矫冶后(T3)的头颅侧位片进行测量分析,并用配对t检验对上气道各水平测量值进行统计学分析。结果双期矫治后,患者的鼻咽段(S-PNS、Ad1、Ad2)气道间隙明显增大(P<0.001),腭咽段(AA-PNS、SPS)增大(P<0.05),舌咽段(IPS)气道间隙减小(P<0.05),喉咽段(eb-Peb)气道间隙无明显变化(P>0.05)。结论恒牙早期伴拥挤的骨性Ⅲ类错患者双期矫治后上气道鼻咽段矢状向间隙增大。Objective To evaluate the effect of two-phase treatment on upper airway dimensions in skeletal Class Ⅲ malocclusions. Methods 18 patients with skeletal Class III malocclusion with crowding in dentition were included. These patients were consecutively treated with two phase. Lateral cephalometric radiographs were used to quantify the skeletal and upper airway changes before treatment（T1）, after maxillary protraction（T2） and after treatment（T3）, and t test was assessed to compare the significant difference between the three groups. Results The dimensions of S-PNS, Ad1, Ad2, AA-PNS, SPS increased significantly（P0.05）, IPS decreased significantly （P0.05）. The change of eb-Peb was not significant（P0.05）. Conclusions In young individuals with skeletal Class Ⅲ malocclusion with crowding diagnosed with maxillary deficiency treated with two-phase treatment, the upper airway dimensions were affected after the treatment, and favorable effects of the treatment appeared in nasopharynx airway.

关 键 词：双期矫治 上气道 骨性Ⅲ类错[牙合] 

分 类 号：R783.5[医药卫生—口腔医学]