What should one do when a tooth filling falls out?

See your dentist: Immediately, most likely way to prevent a root canal. But if you wait too long you might need the root canal. Filling much less costly and time consuming for the patient.

Temporary: You can purchase temporary dental filling material at just about any pharmacy or walmart or target. You will also need to call your dentist to examine and treat the tooth. If you get to the dentist early enough, you may be able to avoid root canals or more costly procedures, other than a simple filling.

Temp: The best choice is to se a dentist. If you cannot, as a temporary measure et a temporary filling art a drug store.