Abstract
Odontodysplasia is a rare developmental anomaly in teeth formation which is generally found in young patients. This disease is characterized by the malformation and hypocalcification of both enamel and dentin, asymmetrically and locally. Rushton (1965)named it " Ghost teeth " because it showed a ghost like appearance roentgenografically. Although 50 cases have been reported in the world, there are few reports in Japan, and the causes remain unknown. This paper described a case of Odontodysplasia in a boy 1 year 11 months old with a chief complaint of swelling, bleeding and pain at the site of upper left anterior gingiva. The findings were as follows. Oral condition
