Management of teeth causing odontogenic maxillary sinusitis on endoscopic sinus surgery

Abstract

How to manage teeth causing odontogenic maxillary sinusitis was investigated in 46 patients with surgery-requiring odontogenic maxillary sinusitis. 1) Seventy-one percent of the causative teeth leading to odontogenic maxillary sinusitis had apical lesions after root canal treatment. The root canals of most of these teeth were incompletely filled with the filling material. Apical lesions in incorrectly treated teeth caused odontogenic maxillary sinusitis. 2) If ventilation and drainage of the maxillary sinus is successful after surgery, 90% of the causative teeth (root canal-treated teeth with apical lesions) can be preserved only by treatment with antibiotics. 3) Thirteen percent of the causative teeth leading to odontogenic maxillary sinusitis had marginal periodontitis. 4) In the case of odontogenic maxillary sinusitis caused by teeth with marginal periodontitis, it was hard to preserve the causative teeth. The indication of extraction should be decided by the degree of teeth mobility and marginal periodontitis. 5) All cases of odontogenic maxillary sinusitis treated with endoscopic sinus surgery improved remarkably. Endoscopic sinus surgery is strongly indicated for odontogenic maxillary sinusitis. Treatment of the causative teeth should be performed based on the pathological condition of the teeth.