If you paid a body shop to replace the bumper on your car and if fell off going down the road a week later because they forgot to put all the bolts back in would you expect to be charged twice for their neglect? We don't know all the details on the case or patient but if a dentist has to repair a filling after one week it was probably not done properly or was on a tooth that was not a good candidate for a filling to begin with. If the patient was trying to save money by getting a filling instead of extracting then yes I would charge for a second visit if I thought (and advised) it should have been extracted to begin with, but if it was just a bad filling job then the dentist should eat the cost and fix it or expect that patient to start looking for a new dentist.
