单颗上颌乳中切牙：病例报告

ASDC J Dent Child. 1986 Mar-Apr;53(2):124-6.

The presented case is a single anomaly not associated with other conditions. In rare cases of the solitary maxillary incisor, the tooth is symmetrical and is always present in the midline, but the crown and root of the tooth are the size of a normal central incisor.

所呈现的病例是一种单一异常，与其他病症无关。在罕见的孤立上颌切牙病例中，牙齿是对称的，且总是位于中线处，但牙齿的冠部和根部大小与正常中切牙相同。