A scanning electron microscopic study of dentin dysplasia type II in primary dentition.

Dentin dysplasia type II is a rare autosomal dominant defect which affects dentin formation in both the deciduous and the permanent dentitions. The scanning electron microscopic study performed on a primary central incisor presents some findings similar to those reported in dentinogenesis imperfecta. Because of the lack of published reports on dentin dysplasia type II, it is difficult to ascertain definitive characteristics of this dentin abnormality.