Piattelli M, Piattelli A
Dental School, University of Chieti, Italy.
Acta Stomatol Belg. 1995 Jun;92(2):75-6.
The authors present a case of a 22-years-old patient with five supernumerary impacted and erupted premolars in the mandible. This dental anomaly is relatively rare occurring from 0.14% to 0.64% of the general population. About 75% of supernumerary premolars seen to be erupted.
作者报告了一例22岁患者，其下颌有5颗额外的埋伏和萌出前磨牙。这种牙齿异常相对罕见，在普通人群中的发生率为0.14%至0.64%。所见额外前磨牙中约75%已萌出。
