Hofmann B, Beauvillain de Montreuil C, Delaire J
Rev Stomatol Chir Maxillofac. 1985;86(5):327-33.
The authors study the maxillofacial repercussions of choanal imperforation based upon 11 cases (8 unilateral and 3 bilateral). Skeletal abnormalities are defined using teleradiographic and tomographic techniques. The origin of these abnormalities is sought: malformations, deformities or sequelae of surgical treatment.
作者基于11例病例（8例单侧和3例双侧）研究了后鼻孔闭锁的颌面影响。使用远距放射摄影和断层摄影技术来定义骨骼异常。探寻这些异常的根源：畸形、变形或手术治疗的后遗症。
