[A case report of supernumerary deciduous teeth with the permanent successor in the maxillary region].

We found pure primary supernumerary teeth in the maxillary right deciduous incisor region of a 3 year 11 month old girl. We reported the results of her oral and X-ray analysis results. We would like to report our findings on the results of her oral and X-ray analysis. 1) Two of the primary supernumerary teeth were found between the incisor and canine teeth in the right side of the primary dental arch, and their color, form and size were very similar to normal primary lateral incisor teeth. 2) We also found pure secondary supernumerary teeth by means of X-ray analysis. 3) We suggest that the permeability of the X-ray is important for the ascertainment of both primary and secondary supernumerary teeth by mean of X-ray analysis.