【摘要】 目的比较伴口呼吸安氏Ⅱ类1分类错患儿与正常儿童的牙颌颅面硬组织横向结构的差异,为临床诊断及选择合理的治疗方案提供理论依据。方法借助头颅后前位X线头影测量,对12例伴口呼吸的安氏Ⅱ类1分类错患儿的牙颌颅面硬组织结构进行测量分析,并与15例正常儿童相应结构进行分析比较。结果伴口呼吸安氏Ⅱ类1分类错患儿的上颌基骨宽度、上磨牙间距、下尖牙间距及骨性鼻腔宽度明显低于正常儿童(P<0.01);与正常相比,错患儿的下颌骨宽度、下磨牙间距的测量值也低于正常儿童(P<0.05)。结论口呼吸可引起儿童牙颌面横向结构上发育的异常,临床诊治时应对此异常给予考虑。更多还原

【Abstract】 Objective To evaluate the craniofacial characteristics of the Class Ⅱ~1 malocclusion patients with mouth_breating by posteroanterior cephalometry.Methods To measure craniofacial width of the 12 Class Ⅱ~1 malocclusion patients with mouth_breathing, and to compared these measures with corresponding measures in a group of normal children.Results The width of the maxillary base bone (J_J) was less than that in normal children significantly(P<0.01). The mouth_breathing children′s upper and lower arch width (at first molar and cuspid) were comparatively narrower, and lateronasal width (Lap_Lap) was narrower too.Conclusion Mouth breathing may lead to craniofacial morphological abnormal development in craniofacial transverse structures.更多还原