Do you have to pay a fine for a canceled dentist appointment?

Yes in most cases, there is some penalty-- but usually, this only occurs if you cancel without giving enough notice. Nearly all dentists and doctors have a cancellation policy: if you cancel at least 24 hours ahead of your appointment, there is often no penalty (some dentists and doctors want notification 48 hours in advance; you should find out the policy when you make your appointment). However, if you do not show up, or if you fail to give enough notice, in the majority of cases, you are charged for the appointment.