Typically, it is an asymptomatic condition. The edge of the denture usually fits in a groove between the folds. The lesions most frequently are observed at the facial aspect of the denture. It is unusual for this to occur on the lingual surface. Although frequently of normal mucosal color, erythema may be associated with inflammation.
Some lesions have a more pyogenic granuloma-like appearance because of capillary proliferation.
Frequently, this is the consequence of resorption of the alveolar ridge so that the denture moves further into the vestibular mucosa, creating an inflammatory fibrous hyperplasia that proliferates over the flange. Surgically excise and microscopically examine the epulis fissuratum. Epulis fissuratum is a hyperplastic reactive lesion, often with inflammatory and reparative phases. The histologic picture can be variable. Most frequently, a dense fibrous hyperplasia occurs, often with varying degrees of inflammation and vascularity.