Fractures of teeth are not uncommon. If they are fresh, see the vet the same day if possible! If they happened some time ago, it is no longer an emergency. Loose teeth are normally the result of chronic periodontal disease and therefore not an emergency. Foreign bodies can be lodged in between the top molar teeth on the roof of the mouth, e.g. a stick or bone. If they can not be removed by gentle traction the vet may have to sedate the dog for successful removal.