Beyond the Traumatic Trigger: Unravelling the Spectrum of Oral Lesions Associated With Local Trauma and Irritation

Background: Local mechanical trauma and chronic mucosal irritation are frequent contributors to oral pathology.Repetitive biting, sharp or malpositioned teeth, dental caries, residual roots, tooth mobility, prostheses and parafunctional habits may induce reactive lesions and epithelial changes that clinically mimic neoplasia.However, attributing persistent lesions solely to trauma risks delayed recognition of potentially malignant disease.The present study assessed the clinicopathological spectrum of biopsy-diagnosed oral lesions associated with documented or suspected local traumatic or irritative factors.Methods: A retrospective review of biopsy records (2021-2025) was conducted at the Department of Oral and Maxillofacial Pathology, Government Dental College and Hospital, Hyderabad.A total of 133 biopsydiagnosed oral lesions that met the predefined study criteria were included.Patients of all ages and both genders were eligible if a documented or clinically suspected local traumatic, mechanical or chronic irritative factor was identified.Data on demographic characteristics, anatomical site, oral habits, suspected local factors, provisional diagnosis and final histopathological diagnosis were extracted from the biopsy records.Results: Among the 133 eligible lesions, patient ages ranged from five to 81 years, with a mean age of 38.3 ± 17.1 years.Female cases accounted for 53.4% of the cases.The buccal mucosa was the most frequently affected site (57.9%),followed by the labial mucosa (23.3%) and tongue (17.3%).Dental pathology-related irritation (36.8%) and sharp or malpositioned teeth (32.3%) were the most frequently documented local irritants.The most common histopathological diagnoses were solitary fibroepithelial hyperplasia (19.5%), mucocele (15.0%), fibroma (11.3%) and moderately differentiated squamous cell carcinoma (10.5%).Based on histopathological classification, 66.1% of lesions were benign/reactive, 9.8% were potentially malignant and 24.1% were malignant/neoplastic.Conclusions: Biopsy-diagnosed oral lesions associated with documented or suspected local trauma or irritation demonstrated a broad clinicopathological spectrum, with benign and reactive lesions predominating.However, potentially malignant lesions and oral squamous cell carcinomas were also identified.Therefore, the presence of a traumatic or irritative factor should not be considered evidence of benignity or assumed to be causal.Persistent, recurrent, indurated, ulcerated or clinically discordant lesions warrant appropriate evaluation and histopathological confirmation.