Ameloblastic carcinoma (AC) is an uncommon malignant odontogenic tumor, with about 200 cases published in the literature. Here, we report a case of AC occurring in the maxilla - at the same anatomical location of an ameloblastoma 8 years earlier. A 23-year-old woman with maxillary swelling of 6-month duration was referred to our service. Extraoral examination revealed a swelling over the right side of the face, lifting her lip and nose. Intraorally, a firm, reddish, nodular swelling involving the right maxilla was observed. Computed tomography showed a hypodense image invading the right maxilla, maxillary sinus, and nasal fossa. An incisional biopsy was performed, followed by histopathologic examination and an immunohistochemical panel, which led to the diagnosis of AC. The lesion was treated with partial maxillectomy followed by immediate rehabilitation. Neither local recurrence of the tumor nor distant metastasis was observed during a 4-year follow-up. AC is a highly malignant lesion which requires aggressive therapy. Its diagnosis should be based on combined clinical, imaging, and pathological manifestations in order to improve diagnostic accuracy.

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OBJECTIVE: The aim of this study was to investigate the profile of smokers in a dental school in southern Brazil and their views about the role of dentists in tobacco use cessation. METHODS: A cross-sectional study was carried out with patients of a dental school, who answered a face-to-face interview. Smokers also took the Fagerström Test for Nicotine Dependence. Data was analysed using descriptive statistics and Chi Square test with a significance level of 5%. Results: The sample consisted of 442 patients, and 93 patients (21.04%) were smokers. The lower the level of schooling the higher the frequency of smokers (p=0.026), and the frequency of nonsmokers was associated with higher income (p=0.021). Regarding the role of dentists in smoking cessation, 97.8% of smokers believe that the dentist should provide information and advice, but 36.6% did not receive any orientation from dentists. CONCLUSION: The study had found a higher frequency of smokers among men and an association between smoking and schooling as well as smoking and income. The majority of smokers would like to quit smoking and had tried at least once to stop. The sample believes that dentists should give information and advice about smoking cessation.Key words: Tobacco; Tobacco use cessation; Nicotine; Health profile; Dentists Perfil de pacientes fumantes e o papel do cirurgião-dentista na cesssação: estudo transversal no sul do Brasil RESUMO OBJETIVO: O objetivo deste estudo foi avaliar o perfil dos pacientes fumantes de um curso de Odontologia no sul do Brasil e sua opinião sobre o papel do cirurgião-dentista na cessação do tabagismo. METODOLOGIA: Estudo transversal analítico, onde os dados foram coletados por meio de uma entrevista contendo questões fechadas e abertas. Os pacientes fumantes também responderam o Teste de Dependência à Nicotina de Fagerström. Os dados foram analisados por meio de estatística descritiva e do teste Qui-quadrado ao nível de significância de 5%. RESULTADOS: A amostra compreendeu 442 pacientes, sendo que 93 (21,04%) eram fumantes. Verificou-se associação significativa entre fumo, escolaridade e renda, sendo que quanto menor a escolaridade, maior a frequência de fumantes (p=0,026), e a frequência de não fumantes esteve associada a uma maior renda (p=0,021). Em relação ao papel do cirurgião-dentista na cessação do tabagismo, 97,8% dos fumantes acredita que este deve dar orientações sobre os danos provocados pelo cigarro, mas 36,6% não receberam informações ou conselhos do dentista. CONCLUSÃO: O estudo encontrou alta frequência de fumantes entre os homens e associação entre tabagismo, escolaridade e renda. A maioria dos fumantes gostaria de parar de fumar e tentou pelo menos uma vez. A maior parte da amostra acredita que o cirurgião-dentista deve fornecer informações e aconselhamento sobre a cessação do tabagismo.

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