目的探讨鼻内镜取出上颌窦内拔牙断根的手术方法。方法用鼻内镜经上颌窦前壁造孔,直视下取出上颌窦内断根。结果 20例患者全部顺利取出,平均用时20min,无上颌窦口腔瘘发生。结论采用鼻内镜经上颌窦前壁造孔,可以成功取出进入上颌窦内的断根,其在直视下操作有准确、迅速和微创的优点,是非常有效的治疗方法,值得推广借鉴。 Objective To investigate the surgical method of removing the root of the maxillary sinus during extraction by endoscopic sinus surgery. Methods Nasal endoscopy was used to make the anterior wall of the maxillary sinus, and the root of the maxillary sinus was removed under direct vision. Results All 20 patients were successfully removed, with an average of 20min, no maxillary fistula occurred. Conclusions Endoscopic sinus surgery through the anterior wall of the anterior wall can be successfully removed into the maxillary sinus in the root, which under direct vision operation with accurate, rapid and minimally invasive advantages, is a very effective treatment, it is worth promoting reference.