[Factors relating to the development of oral cancer]. / Fatores relacionados ao desenvolvimento do câncer bucal.

Cases of mouth neoplasms were analysed in Instituto Arnaldo Vieira de Carvalho, São Paulo. The authors present a literature review about the topics carcinogenesis and co-carcinogenesis. It was shown that there is a relationship between the possible etiological factors and the appearance of these neoplasms. It was observed a interdependency between these factors and the accuracy of these lesions, despite of their real etiology be unknown.