Abstract
Regional odontodysplasia is a rare developmental anomaly of hard tissues in which enamel and dentin are involved. It most commonly affects the maxillary anterior teeth of both the permanent and primary dentition. This paper describes the case of 7 year and 9 month old boy with regional odontodysplasia in the maxillary left anterior teeth. The findings were as follows.
1. The maxillary left incisors and canine were affected with regional odontodysplasia, since both enamel and dentin were hypoplastic and hypocalcificated. Dental radiographs showed the typical appearance of ghost teeth and there was a lack of contrast between the enamel and dentin.
2. Amorphous calcified materials were found on the surface of the enamel, particularly in the cervical area in which the formation and calcification of the enamel were irregular.
3. The formation and calcification of the dentin were poor and interglobular dentin was found everywhere, although the odontoblasts appeared to be normal in form.
