女,37岁.于四月前因右后上牙痛,牙龈肿胀流脓在当地医院拔除?,拔牙后创口经久不愈,有脓液外溢,伴流脓鼻涕,右侧偏头痛.检查:右面部稍饱满,右上颌窦区压痛.?缺失,?颊侧牙槽嵴上有一深约2厘米瘘口,探查有软组织样阻力,未触及骨面,瘘口处有脓性分泌物.X线上颔窦柯瓦氏位断层摄影:右上颌窦3、3.5、4厘米均显示0.8×1.0厘米的椭圆形致密阴影,上颌窦透光度低.初步诊断:(1)拔牙致口腔上颌窦瘘(右); Female, age 37. In April due to the right upper back toothache, swollen and swollen pus in the local hospital pull out, prolonged unhealed wounds after extraction, pus nasal discharge, right migraine .Check: the right Facial slightly full, right maxillary sinus area tenderness.? Missing, buccal alveolar ridges have a deep about 2 cm fistula, probing soft tissue-like resistance, not touching the bone surface, fistula at purulent discharge .X ray Sinus kawasaki bit tomography: right maxillary sinus 3,3.5,4 cm showed 0.8 × 1.0 cm dense elliptical shadow, low permeability of the maxillary sinus.Preliminary diagnosis: (1) extraction of oral maxillary fistula (right);