My 22-month-old son chipped the two upper teeth that are the next teeth after the two front
teeth. I went to the dentist with him
and he thinks it could be amelogenesis imperfecta. The
teeth both had a pitted, discolored part six month ago, (we thought he discoloration was from iron drobs) and now the enamel of the front part is coming off very easily, but on just those two teeth (so far). If this keeps going, both those teeth are going to be down to the nerve within weeks/months.