上颌切牙区多生牙是替牙期儿童常见的牙颌畸形，是早期预防性矫治的重要适应证之一［１］。我科自１９９４～１９９８年共收治上颌中切牙区多生牙病例４０例。发现其类型多种，因此，有必要对上颌切牙区多生牙的矫治作一总结，旨在为临床上矫治类似病例时提供参考依据。１　临 Much teeth in the maxillary incisors are common deformities of the dentition in the children of dentition and are one of the most important indications for early preventive treatment [1]. Our department from 1994 to 1998 were treated 40 cases of maxillary central incisor tooth polygamy. Therefore, it is necessary to summarize the correction of multiple teeth in the maxillary incisor area, aiming to provide a reference for the clinical treatment of similar cases. 1 Pro