Dentinogenesis imperfecta is an autosomal dominant disorder of tooth development charecterized by the presence of opalescent dentin, resulting in a dusky blue to brownish discoloration of the teeth. This condition is genetically and clinically heterogeneous. Both deciduous and permanent dentitions are affected. This report describes a case of 19 year old female patient with characteristic dental features of dentinogenesis imperfecta type II