下颌支囊肿通常采用颌下切口经外侧骨板开窗摘除,手术创伤较大,并有损伤面神经下颌缘支的危险。为减少手术创伤,避免损伤面神经,近两年,我们采用口内切口经下颌支前缘开窗摘除囊肿,取得满意效果。本文就手术方法和治疗体会介绍如下。 Mandibular branch cyst usually submandibular incision through the lateral bone plate extirpation, surgical trauma larger, and the danger of facial nerve mandibular branch injury. In order to reduce the surgical trauma and avoid damaging the facial nerve, in the past two years, we adopted the intraoral incision to remove the cyst through the mandibular anterior margin to achieve satisfactory results. This article describes the surgical methods and treatment are as follows.