关于过早错拔 33造成反牙合的报道很少见 ,我科遇到 1例 ,报道如下。1　病例介绍患者 ,男 ,2 3岁 ,学生。因反牙合影响美观于 1999年 4月2 0日来我科就诊。患者 11岁时由于 33位萌出磨损相应上唇部致使该处多次溃疡疼痛 ,于当地私人诊所拔除。追问病史 ,当时牙齿排列整齐 ,咬牙 On the prematurely wrong pull 33 caused anti-orthodontic report is rare, our department encountered 1 case, reported as follows. 1 case description Patient, male, 2 3 years old, student. Because of anti-orthopedic effect beautiful in April 20, 1999 to our department. Patient 11 years old due to the eruption of the upper eyelid 33 due to multiple ulcers causing pain in the Department, removed at a local private clinic. Asked history, when the teeth arranged neatly, teeth