Abstract
A boy,4 years and 7 months old, with a past history of plastic surgery related to cleft lip, had two supernumerary primary teeth between the maxillary right primary incisor and cuspid on the cleft side and had congenitally missing mandibular bilateral primary lateral incisors and succeeding permanent teeth.
The details were as follows:
1. One supernumerary tooth (S1)was located between the maxillary right primary incisor and lateral incisor, and the other (S2)between the right primary lateral incisor and cuspid.
2. The shape of S1 was incisal and that of S2 conical. X-ray examination showed that apexes of S1 and S2 were as well-developed as those of the normal primary teeth.
3. The succeeding permanent teeth to S1 and S2 were not observed.
4. The mandibular bilateral primary lateral incisors were congenitally missing. The succeeding permanent teeth to the lateral incisors did not exist either.
