Kalu, a 6-year-old child, was administered tetracycline. Which teeth are most likely to show noticeable discoloration?

Explanation

Tetracycline causes discoloration primarily in the teeth that are developing during the time of administration. In a 6-year-old child, the incisors, first molars, and premolars are in the calcification phase, making them susceptible to staining, whereas canines and second molars calcify later.