This article presents a 13-year-old female patient with an impacted maxillary second premolar which is incomplete root formation.The impacted tooth was surgically repositioned to normal occlusion.

• 本文报告一位13岁女性患者利用手术移位的方式将牙根尖尚未发育完全的上颚第二小臼齿直接移到正常的咬合位置。