作者报道了一例罕见的先天性上下牙龈融合患者,新生儿3天体重2.7kg,从生下来即不能张口。检查发现,右颜面部发育不良。右侧上下牙龈融合,仅在左侧留下一高约3mm裂孔,用一小匙通过此孔喂养。X线片显示右下颌骨升支发育不良并几乎看不见右颞下颌关节。在氯胺酮麻醉下手术,钝性分离颞下颌关节周围纤维性粘连之后,用刀柄加压分离融合牙龈,手术完毕时张口达1.2cm,将纱布团缝在分开的牙龈创口之 The authors report a rare case of congenital upper and lower gingival fusion patients, newborn three days weighing 2.7kg, from birth that can not mouth. Examination found that the right facial dysplasia. Fusion on the right side of the upper and lower gums, leaving only a left high about 3mm holes, with a small spoon fed through this hole. The X-ray showed dysplasia of the ascending mandible and almost no right temporomandibular joint. After anesthesia under ketamine surgery, blunt dissection of fibrous adhesions around the temporomandibular joint, with a knife handle pressure separation fusion gingiva, the mouth is closed at the time of surgery up to 1.2cm, the gauze group stitches in separate gingival wound