上颌前部骨埋伏多生牙48例临床分析  

IMPACTED SUPERNUMERARY TEETH OF THE ANTERIOR MAXILLA: A SURVEY OF 48 CASES

作　　者：古向生[1] 许健全[1] 曾融生[1] 沈强[1] 王大为[1] 

机构地区：[1]中山医科大学口腔医疗中心

出　　处：《中山大学学报（医学科学版）》1993年第2期140-143,共4页Journal of Sun Yat-Sen University:Medical Sciences

摘　　要：上颌前部骨埋伏多生牙是多生牙中最常见的一类,临床意义也较大。作者收集了48例此类患者的临床资料,发现其年龄多较小(M=8.25岁),临床上最常表现为局部畸形牙的萌出(19/48)和不明原因的恒前牙移位(27/48)。作埋伏牙的X线定位投照,发现其大多具有倒立生长的特点(41/53),而且位于中切牙牙弓腭侧的明显多见(42/53)。埋伏多生牙的形态则以圆锥形为主(49/53),且大多比正常恒牙短小。It is the most commonly that supernumerary teeth are impacted in maxillary anterior region with considerable clinical significance. Clinical investigation of 48 cases showed that the age of most patients in this sample was in the early mixed dentition, presenting the eruption of the dental anomalies and malposition of the permanent incisors without apparent causes. It was also demonstrated that most supernumeraries were inverted and located in the anterior palatal region with conical shape and smaller in size than normal permanent teeth by localization by radiographic techniques.

关 键 词：埋伏多生牙 上颌 前部 常见 恒前牙 中切牙 不明原因 发现 形态 生长 

分 类 号：R783[医药卫生—口腔医学] R782[医药卫生—临床医学]