Abstract
A clinical and statistical analysis was done with regard to the external dental fistula treated for 11 years in the Department of Dentistry and Oral Surgery, Nagoya National Hospital and some findings were obtained.
Twenty-one cases were treated during approximately 11 years from April 1978 to December 1988 in our department and accounted for 0.15% of the total outpatients.
With respect to the age of the patients, 5 cases were in the twenties, which accounted for 23.8% of the total cases, 4 cases in the sixties.
With respect to the disease classification of the causal teeth, 11 patients had radicular periodontitis, accounting for 47.80 of the total cases, 3 had radicular cyst (13.0%), and other 3 had wisdom teeth (13.0%).
With respect to the treatment in our department, 6 patients underwent the extraction of tooth with obliteration of the fistula, 4 underwent the extraction of tooth only, and other 4 underwent the root canal treatment. The cases of surgical treatment accounted for 81.0%.
