Prevalence of Pregnancy Tumor (Pyogenic Granuloma) and Related Factors in Pregnant Women Referred to Tehran Mirza Kuchak Khan Hospital during 2010-2011

Pregnancy tumor that is the same as pyogenic granuloma from histological aspect is a hemorrhagic reactive nodule which mostly appears in gingival area in pregnancy and can cause secondary oral infections. Due to the high prevalence of this lesion in pregnant women and lack of solid status in Iran، this project was carried out to study the prevalence of pregnancy tumor and related factors. This descriptive، cross sectional study was conducted on pregnant women during 2010-2011. Data were collected by observation، clinical and para-clinical examination، completing questionnaire and also evaluating medical records. Related factors which have been considered consist of age، oral lesion and size، involved jaw، patients complaint، smoking، underlying systemic diseases، oral hygiene status، pregnancy trimester، defective dental restorations or crowns in lesion’s area and drugs taken especially injectable hormonal drugs during pregnancy. Sampling was made by sequential method. Data were analyzed using chi-square test. 72 of 1600 patients with average age of 26. 8 years old (4. 5%) had pregnancy tumor. In 66 cases، lesions were found in maxillay gingiva and in 6 cases were found in mandibular gingiva. Poor oral hygiene were found in 58 women (80. 6%) and 50 women (69. 4%) with the lesion were in the last trimester of pregnancy. Also 5 of 72 patients (6. 9%) complained from swelling and bleeding of the lesion. 9 lesions were found near defective dental restorations and crowns. The results of this study shows the direct effect of age، poor oral hygiene and also the trimester of pregnancy on the prevalence of pregnancy tumor in pregnant women.