【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。更多还原

【Abstract】 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.更多还原