The aim of this study was to evaluate the frequency of specific diagnostic methods used for diagnosis of oral pathologies. The sample consisted of 198 patients (98 man and 100 women) with formulated diagnosis, confirmed postoperatively by histopathological verification. In 74.7% of subjects only X-ray diagnostic examination was used. Both X-ray and computed tomography (CT) examinations were used in 18.7% of subjects. Magnetic resonance imaging (MRI) wasn't performed in any subject. In 6.6% of subjects neither X-ray nor CT was performed. The study reported on statistically significant differences in the distribution of specific diagnostic methods according to age groups (p = 0.026). Also, there was statistically significant differences in the distribution of diagnostic methods according to diagnostic groups (p = 0.053). In the group of 37 subjects, in whom both X-ray and computed tomography were used, the majority had carcinomas, followed by fractures and inflammatory cysts.