Dental Intrinsic discolouration of teeth which have not originated from developmental defects of the enamel and dentin: A Amelogenesis imperfecta. B Dentinogenesis imperfecta. C Erythroblastosis fetalis. D None. 💡 Explanation Intrinsic discolouration of teeth which have not originated from developmental defects of the enamel and dentin: ✓ Correct Answer: C. Erythroblastosis fetalis.