90 % of oral cavity neoplasms are planoepithelial cancers. The most of them are recognized in the state of advanced disease, when the tumor size is over 2 cm and nodule metastases exist. Determination of the tumor borders define the proper treatment. The presence of bone infiltration confirmation is necessary. The aim of the work is the valuation and definition of particular roentgenological projection suitability in the case of facial skeleton planoepithelial cancers.