Pathology The sensitive period for tetracycline induced discolouration in the permanent maxillary mandibular incisors and canines is A 3 months postpartum to 7th year of Life B 4 months in utero to 3 months postpartum C 5 months in utero to 9 months postpartum D Birth to 7th year 💡 Explanation The sensitive period for tetracycline induced discolouration in the permanent maxillary mandibular incisors and canines is ✓ Correct Answer: A. 3 months postpartum to 7th year of Life