Oral cancers are among the 10 most common tumors in Europe and the United States. The major recognized risk factors include smoking and alcohol what is possible explanation for higher incidence among men. The risk of developing a tumor of the oral cavity is 38 times higher in the population that consuming alcohol and cigarettes. Cancer of the oral cavity is a serious disease and only half of the patients survive the next five years. According to the World Health Organization classification, oral cancer includes malignant tumors in the lips area, anterior two thirds tongue, gingiva, bottom of the oral cavity, retromolar triangle, hard palate and mucous membranes of the oral cavity. In spite of the advancement of medicine, оral cancer remains a malignant tumor with a high mortality rate. The reason for this was primarily enhanced by the tumor stage at the time of diagnosis. On the other hand, the oral cancer is a tumor that can be detected by a simple examination of the oral mucosa at an early stage, before it starts to cause symptoms.