DS2 (3.5) vomited 3x overnight - seemingly fine this morning but a bit tired. However, I have noticed that one of his front teeth has turned a grey colour overnight. Has this happened to anyone else?? Still haven't made it to the dentist yet (long story) although we need to. Not sure if we now need to as a matter of urgency. He's not complaining about the mouth so I'm not sure if its a virus or something else which has caused it to change colour.