摘要
squamous cell carcinoma is the most common malignant neoplasm in oral cavity and adjacent structures. its prevalence is higher in males, after the fourth decade, and the main etiologic associated factors are smoking and alcohol. this study reports a case of squamous cell carcinoma arising from the lower alveolar ridge, a non-preferential site for this pathology. it also discusses the importance of the dentist in the team of professionals assisting these patients, in early diagnosis and treatment of the stomatological alterations due to antineoplastic therapy.