Incidence of phantom tooth pain: an atypical facial neuralgia.

The aid of endodontists was sought in an attempt to determine the incidence PTP in an endodontically treated population. A total of 732 questionnaires were mailed to past patients of one endodontist; 463 (63 percent) usable responses were returned. Of 256 female subject, eight (3 percent) manifested persistent chronic pain not explained by physical or radiographic examination but consistent with the signs and symptoms of PTP. Other patients met three of the four criteria of PTP. The incidence of PTP in the population studied is between 3 and 6 percent.