外歯瘻の2例

抄録

We report two cases of external dental fistula and a recent review of the literature. Both of the cases were diagnosed as typical external dental fistula. External dental fistula usually appears on the mandibular or dental regions as erythematous nodulocystic, suppurative lesions. External dental fistula usually develops from a apical periodontitis, which most commonly results from carious disease. In many patients, the external dental fistulas are not recognized and the interventions are either improper or insufficient. In order to correctly evaluate a case of external dental fistula, the clinician must be aware of the disorder and the potential for a dental abscess to drain through the skin of the face. The diagnosis is readily confirmed by X-ray examination of the teeth. A permanent cure can be expected using dental therapy, such as root canal treatment or dental extraction.