上颌窦清理术的传统切口是从上尖牙嵴向外至第２双尖牙处的唇颊粘膜作一横行切口，切开粘膜、骨膜，向上分离骨膜至上颌窦前壁犬牙窝，凿开骨窗入上颌窦腔。行此切口的患者常有术侧面部肿胀、麻木、上列牙痛等症状，根据面部血管、淋巴管均为自上而下纵行走向，眶下神经经眶下 The traditional incision in maxillary sinus surgery is to make a transverse incision from the maxillary crest to the labial buccal mucosa of the second bicuspid to incise the mucosa and periosteum and separate the periosteum upwards to the anterior wall of the maxillary sinus Bone into the maxillary sinus cavity window. Patients with this incision often have side facial swelling, numbness, the following toothache and other symptoms, according to the facial blood vessels, lymphatic vessels are from top to bottom longitudinal, infraorbital nerve through the infraorbital