Although necrotizing sialometaplasia occurs mostly in the palate, we recently treated a case in which this condition had developed in the distomolar glands of the lower jaw. Only one other similar case has been reported. The present case was apparently caused by chronic, mechanical stimulation by a maxillary molar and denture. Because necrotizing sialometaplasia resolves spontaneously, no special treatment is necessary. However, to diagnose the present case, we totally resected the lesion. The patient was cured, and there have been no signs of recurrence.
