This question is regarding my 1 year old son. He had iron deficiency anemia from 9-14 months old - he was taking a chewable iron tablet for 3 months. He is now 17 months old and has developed iron stains on his teeth, which I read is common. We brought him to his dentist and they polished off all the stains and put a flouride varnish to coat his teeth. My question is, do the stains keep coming back? We visited the dentist just last Wednesday and today I can see tiny new stains forming on his teeth. I really don't understand the staining in general, especially since he hasn't taken the iron supplement since he was 14 months old and the stains didn't show up til after that, that I had noticed anyway. So is it iron stains? And why is it coming back if he's no longer on an iron supplement?
Thanks so much for your help!