摘要
目的:探讨第三磨牙存在状况与矢状骨面型的关系。方法:选取188例正畸患者,分析其X线曲面断层片和头颅侧位定位片,并测量ANB角的大小。结果:上颌较下颌更容易发生第三磨牙缺失,上颌右侧第三磨牙缺失率高于左侧。上颌第三磨牙全部缺失与下颌第三磨牙全部缺失患者的ANB角比较差异有统计学意义(P<0.05);第三磨牙全部存在与第三磨牙全部缺失患者ANB角比较差异有统计学意义(P<0.05)。结论:矢状骨面型的分类可能与第三磨牙存在状况有关,第三磨牙存在状况对错合畸形诊断和治疗方案确立可产生一定的影响。
Objective To study the relationship between the third molar and sagittal maxillomandibular jaw.Methods One hundred and eighty-eight patients were analyzed their panoramic radiographs and cephalograms,and measured ANB angle.Results Compared with mandible,the agenesis of the maxillary third molar was more frequent.And the agenesis of the right maxillary third molar was more frequent than that of the left.There was a statistic difference in ANB between patients with bilateral agenesis of maxillary third molars and patients with bilateral agenesis of mandibular third molars（P0.05）,and between patients with all third molars and patients without third molar（P0.05）.Conclusion Agenesis of the third molars is possibly related to sagittal maxillomandibular jaw.The third molar affects the diagnosis and treatment plans of malocclusion patients.
出处
《中华实用诊断与治疗杂志》
2010年第4期352-353,共2页
Journal of Chinese Practical Diagnosis and Therapy
关键词
口腔正畸
错合畸形
第三磨牙
矢状骨面型
Orthodontics
malocclusion
third molar
sagittal maxillomandibular jaw
