My nephew has a gray spot between his baby teeth in the bottom. She does not send him to bed with a bottle. She thinks its from iron supplement? Any wisdom? She's taking him to an expensive dentist this week, on Thursday, but we aren't sure how he will get a good look at a wiggly baby. Her pediatrician ( who I think is a moron, but she loves him) claims its not the iron because the discoloration would be brown.
