151. Kalu, a 6- years – old child, received tetracycline. Noticeable discoloration will be seen in______________? September 27, 2025 by Admin A. Premolars, incisors and 1st molars B. Canine and 2nd molars C. Canines, premolars and2nd molars D. Incisors and 1st molars ✅ The correct answer is option C. Canines, premolars and2nd molars.