Survey of Reactive Hyperplastic Lesions of the Oral Cavity in Mashhad, Northeast Iran

BACKGROUND AND AIMS: Reactive hyperplasias (RHs) are common oral mucosal lesions caused by irritation of the mu-cosa. The aim of this study was to evaluate the frequencies of various types of oral RHs in a university clinic. MATERIALS AND METHODS: Oral RH cases, undergone biopsy in a four-year period, were studied retrospectively. Data including age and gender as well as the location and clinical characteristics of the lesion were collected and analyzed. RESULTS: A total of 123 cases (age range 7-79 years old; mean: 38.8 ± 18.50 years; male: female ratio, 1.9:1) were evalu-ated. Over a half of the lesions including pyogenic granuloma, giant cell granuloma, and peripheral ossifying fibroma were found in gingiva (52%). Fibroma involved mostly the buccal mucosa. Most lesions had smooth surface and sessile base. CONCLUSION: The clinical features of oral inflammatory hyperplasia in the studied sample were similar to those previously reported.