RESUMO
According to relatively high prevalence of epulis fissuratum in patients having compete denture, with its known consequences and predicaments; also, the controversy and lack of information about the prevalence of epulis fissuratum especially in Iranian dependent elderly, the aim of this study was to determine the prevalence of epulis fissuratum and its associated actors, in two senatorium of Tehran [Kahrizak, and Pasdaran] in 1384. This cross- sectional study was done on 201 dependent elderlies having complete dentures. Clinical examinations were done to diagnose and record the epulis fissuratum which is a sessile pedanculated inflammatory fibrous hyperplastic lesion under base of the denture. Associated factors such as sex, age, site of living, retention, and stability of denture, satisfaction of denture esthetic, complete denture maker, and complete denture wearing period were studied. The prevalence of epulis fissuratum was determined and the associated factors were statistically analysed by Chi-square test. The prevalence of epulis fissuratum was 16.4%. There was significant relation among the prevalence of epulis fissuratum with sex, stability, retention of complete denture and period of wearing complete denture on 24 hours [P<0.05]. Other studied factors didnt have any significant relation with incidence of epulis fissuratum. The prevalence of epulis fissuratum was noticeable. With regard to probable dysplastic and precancerous changes in this lesion cohort and clinical studies are recommended