【摘要】 目的:探究腺样体肥大骨性Ⅰ类、Ⅲ类前牙反(牙合)儿童矫正治疗后上气道、腺样体变化。方法:纳入2021年1月～2022年1月于山西医科大学口腔医院实施前方牵引治疗的骨性Ⅲ类前牙反(牙合)患儿155例,根据腺样体是否肥大分为Ⅲ类正常组(72例)、Ⅲ类肥大组(83例)。应用“2×4”固定矫治技术矫治治疗的骨性Ⅰ类前牙反(牙合)患儿122例,分为Ⅰ类正常组60例,Ⅰ类肥大组62例。对比两组上气道、腺样体变化。结果:(1)骨性Ⅰ类前牙反(牙合)患儿干预后Ⅰ类正常组、Ⅰ类肥大组仅鼻咽腔宽度增加(P<0.05),其他指标均无显著差异(P>0.05);(2)骨性Ⅲ类前牙反(牙合)患儿干预后腺样体厚度、A/N比率值降低,鼻咽腔宽度、鼻咽气道间隙、软腭上后气道间隙、悬雍垂尖后气道间隙、软腭至腺样体之间最小气道间隙、下颌平面角增加(P<0.05);Ⅲ类肥大组A/N比率低于Ⅲ类正常组(P<0.05);结论:矫正治疗可以降低腺样体肥大骨性Ⅲ类前牙反(牙合)患儿腺样体肥大程度,扩大气道。而腺样体肥大骨性Ⅰ类前牙反(牙合)患儿矫正干预后仅能拓宽鼻咽腔宽度。更多还原

【Abstract】 Objective: To investigate the changes of upper airway and adenoids in children with hypertrophic adenoid skeletal class Ⅰ and class Ⅲ anterior crossbite after orthodontic treatment. Methods: From January 2021 to January 2022, 155 children with skeletal class Ⅲ anterior crossbite who were treated with anterior traction in Stomatological Hospital, Shanxi Medical University were selected. They were divided into class Ⅲ normal group(72 cases) and class Ⅲ hypertrophic group(83 cases) according to whether the adenoids were hypertrophic. A total of 122 children with class Ⅰ anterior counterocclusion were treated with “2×4” treatment, which were divided into Class Ⅰ normal group(60 cases) and class Ⅰ hypertrophy group(62 cases). The changes of upper airway and adenoid were compared between the two groups. Results:(1) After intervention, only the width of nasopharynx cavity increased(P<0.05) in Class Ⅰ normal group and Class Ⅰ hypertrophic group, and there was no significant difference in other indicators(P>0.05).(2)After intervention, the adenoid thickness and A/N ratio of children with skeletal class Ⅲ anterior crossbite decreased, and the width of nasopharynx cavity, nasopharynx airway space, soft palate upper and rear airway space, uvula tip rear airway space, the minimum airway space between soft palate and adenoid, and mandibular plane angle increased(P<0.05). The A/N ratio of class Ⅲ hypertrophic group was lower than that of class Ⅲ normal group(P<0.05). Conclusion: Orthodontic treatment can reduce the degree of adenoid hypertrophy and expand the airway in children with skeletal class Ⅲ anterior crossbite. Only the width of the nasopharynx cavity can be widened after the correction intervention for children with adenoid hypertrophy and skeletal class Ⅰ anterior crossbite.更多还原