I don't know if I should be concerned. But my 4 month old girl/puppy just swallowed my 10 year-old's tooth. My child's molar is been hanging by a threat for the last few days and he was eating a snack when all of the sudden he went "AHHH my tooth" and down it went. I saw the whole thing kind of like in slow motion! Anyway, she snatched the darn thing really fast and by the time I got her the tooth was gone! Biscuit is always circulating around my children when they are eating, for abvious reasons! Oh My DOG!! Should I worry?