title: Survey of reactive hyperplastic lesions of the oral cavity in mashhad, northeast iran.
abstract: OBJECTIVE
  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.
  
  
  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.
  
  
  CONCLUSIONS
  The clinical features of oral inflammatory hyperplasia in the studied sample were similar to those previously reported.
authors.affiliation: Dental Research Center, Mashhad University of Medical Sciences, Mashhad, Iran  ; Associate Professor, Department of Oral Medicine, Dental School, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Amirchaghmaghi
authors.forename: Nooshin
authors.initials: N
authors.lastname: Mohtasham
authors.forename: Pegah
authors.initials: P
authors.lastname: Mosannen Mozafari
authors.forename: Zohreh
authors.initials: Z
authors.lastname: Dalirsani