3根型下颌第一恒磨牙
Permanent three-rooted mandibular first molar
多发性下颌骨骨折
Multiple mandibular Fracture
儿童安氏Ⅱ1下颌后缩
Class Ⅱ division 1 malocclusion
儿童下颌骨骨折
Mandible fracture of childhood
骨性下颌后缩
Skeletal mandibular retrusion
颌下-半颈发际缘切口
Submandible-semicervix hairline incision
颌下良性肿瘤
Alcoholic fibrosis and sclerosis of liver
颌下淋巴结
submandibular lymph nodes
颌下入路
excision line of the lower jaw