A patient in the United States goes to the dentist for a routine extraction of both bottom wisdom teeth (as explained to him beforehand by the dentist). The patient is put under general anesthesia, wakes up with some gauze in their mouth and are given a prescription for painkillers. The dentist tells the patient that the procedure went exactly as planned, and the patient heals over the next 10 days with no complications.
It can be assumed that the dentist bills the patient (and/or their health insurer) for the procedure as it was described to the patient.
Some time later, the patient visits a different dentist complaining of tooth pain in the back of the mouth, and the new dentist discovers that only one of the wisdom teeth was removed.
Are there any legal grounds for the patient to file suit against their former dentist in this situation?