فراوانی ضایعات نسج نرم دهان مرتبط با تروما در جمعیتی از شمال ایران

Background and purpose: Intraoral soft tissue lesions of traumatic-origin and their clinical similarities to neoplastic lesions are of great importance. This study was performed to determine the frequency of these lesions in a population from northern Iran. Materials and methods: This retrospective study was done using existing patient dental records from two referral pathology department for oral lesions in Babol University of Medical Sciences. Patients' demographic criteria, location and characteristics of trauma-related lesions with clinical and histopathological diagnosis were obtained. Results: The subjects were 185 (41.5%) male and 261 (58.5%) female and the mean age of patients was 36.82 ± 0.9 years. Four hundred and forty-six cases associated with trauma were found. They were all created in soft tissues and the most common locations of lesions were gingiva (45.3%) and lip (24.9%). The most prevalent lesion was pyogenic granuloma (25.6%). The mean age of patients with frictional keratosis and epulis fissuratum were higher (57.76 ± 9.89 and 56.22 ± 13.24, respectively), while the mean age of patients affected by mucocele was the lowest (22.98 ± 13.4). Sixty two cases of lesions (14.4%) were seen in people <15 years of age. The most common sites of involvement in this population were the lips and gums with similar rate of incidence and the most prevalent lesion was mucocele. The concordance between histopathological and clinical diagnosis was seen in 54.7% of the cases. Conclusion: Intraoral soft tissue lesions of traumatic-origin have a relatively high prevalence in the oral cavity -probably due to more contact with local stimulus factors- and in the female population. This study found valuable epidemiological evidence that signifies the importance of such lesions in oral diseases.