Hi my daughter has a gap in the middle of her two front upper teeth. She is 24 months and I am wondering if the gap might close on its own or if it will stay like that. She doesn't have speech problems. But I'm consurned if it will have the gap forever. Also if it will close at what age might that happen? Also is this heredetary? Because I have a sister with this problem. How old should she be to know if the gap will stay or not?