Abstract
We found a supernumerary primary tooth in the maxillary left primary canine region and geminated tooth in the maxillary right primary canine region in a 3year 9-month old boy. We reported the result of his oral findings, analysis of the plaster cast, radiographic findings and a survey of the literature was done.
1. This was a rare case that had a supernumerary primary tooth in the maxillary left primary canine region and geminated tooth in the maxillary right primary canine region.
2. Two teeth in the maxillary left primary canine were judged as normal primary canine and supernumerary primary teeth based on shape, color, size, eruption form and pulp cavity form.
3. The maxillary right primary canine was very similar to the normal primary canine in shape, with a wider mesio-distal width and a fissure on the lungual surface was observed, which is usually seen in fused teeth. Also this tooth was judged as a geminated tooth based on radiographic findings.
4. A succedaneous tooth of the supernumerary primary teeth was not found and also there ware no anomalies in the succedaneous tooth of the geminated teeth.5. No obvious theory of cause was established in this case, but it might be considered that the cause of this case report was complete or incomplete separation of the tooth germ.
