Dental A development disturbance in the enamel of mandibular first molar crown usually occurs between which of the following ages A 8 months prenatal to one year postnatal B Birth to 3 years postnatal C 3 years postnatal to 5 years postnatal D 6 years postnatal to 8 years postnatal 💡 Explanation A development disturbance in the enamel of mandibular first molar crown usually occurs between which of the following ages ✓ Correct Answer: B. Birth to 3 years postnatal