Supernumerary Teeth in Primary and Mixed Dentition－Case Report

Abstract

The incidence of supernumerary teeth in deciduous dentition is very low. In this case report, we present the treatment progress of a pediatric patient who had bilateral maxillary supernumerary deciduous teeth, which resembled upper lateral incisors. On follow-up visits, the patient was also found to have a fused tooth in the position of the upper left lateral incisor and an impacted supernumerary tooth on the palatal side of the upper right central incisor. A 1-year 10-month-old boy with 2 supernumerary teeth in the upper dental arch visited our clinic. Those were extracted at the age of 2 years 6 months because of crowding of the deciduous upper anterior teeth and premature contact with the lower incisors. During a periodic check-up for dental management of the patient, 2 more abnormal teeth were detected in mixed dentition ;a fused tooth in the upper left lateral incisor tooth position and an impacted supernumerary tooth on the palatal side of the upper right central incisor. The impacted supernumerary tooth was extracted at the age of 7 years 8 months, then the fused tooth was morphologically restored using composite resin. Space shortage was encountered for the upper anterior erupting teeth, thus the upper bilateral first premolars were extracted and an acceptable permanent dentition was attained.