Frequency of Trauma Sssociated Soft Tissue Lesions in a Population of North of Iran

Background and Given the importance of trauma associated oral soft tissue lesions and their clinical similarities to neoplastic lesions، this study was performed to determine the frequency of these lesions in a population of northern Iran. This retrospective study was done using existing patient records in the archives of two referral pathology department for oral lesions in Babol. Patients'' demographic criteria، location and characteristics of trauma-related lesions with clinical and histopathological diagnosis were obtained. Four hundred and forty-six cases associated with trauma were found. All lesions associated with trauma were created in soft tissues. The mean age of patients was 36. 82 ± 0. 9 years. 185 (41. 5%) patients were male and 261 patients (58. 5%) were female. Most common location of lesions was gingiva (45. 3%) and lip (24. 9%)، respectively. The most common lesion was pyogenic granuloma (25. 6%). The mean age of patients with frictional keratosis and epulis fissuratum was more than other lesions and in cases with mucocele was less than other patients. 62 cases of lesions (14. 4%) were seen in people less than 15 years. The most common site of involvement in people less than 15 years was the lips and gums with the same prevalence and the most common lesion was mucocele. Concordance between histopathological and clinical diagnosis in were seen in 54. 7%. It seems that the trauma associated lesions have a relatively high prevalence in the oral cavity and in the female patients. Trauma associated soft-tissue lesions are more common than hard tissue، probably due to more contact with local stimulus factors. The results of this study is valuable as epidemiological evidence، the importance of these lesions is determined for dental professionals.