title: Frequency of gingival pregnancy tumor in iran (confirmed by biopsy).
abstract: BACKGROUND
  Pregnancy tumor histologically coincides with oral pyogenic granuloma. It is a reactive hemorrhagic swelling that mostly occurs in gingiva of pregnant women and can cause some complications. Considering the lack of knowledge regarding its prevalence, this study aimed to determine the frequency and characteristics of pyogenic granuloma in pregnant women presenting to Tehran/Iran Medical Centers in 2013.
  
  
  METHODS
  In this descriptive cross-sectional study, a total of 923 pregnant women with a mean age of 27.7 ± 4.7 years were selected among those presenting to Tehran Medical Centers using consecutive sampling and clinical examination. Data were collected through interview and filling out a data form. Related variables were evaluated, and if the lesion was present, its clinical and histological characteristics were recorded. Data were analyzed and reported using relative and absolute frequency indices.
  
  
  RESULTS
  Of 923 pregnant women presenting only 2 (0.22%) had clinical and histological signs and symptoms of pyogenic granuloma. Both lesions had a firm consistency and were seen on maxillary gingiva. The lesions were not ulcerative, but both had bleeding.
  
  
  CONCLUSIONS
  Considering the frequency of pyogenic granuloma in previous studies, it can be concluded that the prevalence of this lesion in pregnant women presenting to Tehran Medical Centers in 2013 is lower than previous studies.
authors: Dentist, Gifted and Talented Dental Students Division, Students' Scientific Research Center, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors: Elaheh Sadat Tabatabaei
authors: ES
authors: Nejad
authors: Professor, Department of Oral Medicine, Faculty of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors: Jamileh
authors: J
authors: BigomTaheri
authors: Assistant Professor, Department of Oral Medicine, Faculty of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors: Somayyeh
authors: S
authors: Azimi
keywords: Gingiva; pregnant women; prevalence; pyogenic granuloma
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