Aim of the study: The aim of the study was to examine the frequency of the position of impacted lower third molars in patients of a private dental practice in Split. Study design: A descriptive research design was used. Subjects and methods: The research was conducted during April and May 2022, during which a total of 218 orthopantomogram X-rays of adult male and female patients were examined. The criteria for inclusion in the study were the presence of mandibular third molars and adjacent second molars and the completion of third molar root growth and development. The sample consisted of randomly selected radiological images of patients who were treated in a private dental practice. The assessment of the position of the lower third molars was determined by the degree of impaction according to the Pell & Gregory classification, and their angulation according to the Winter classification. The analysis was performed with the software "MsExcell" (Microsoft Excell, Microsoft Inc. USA). Results: A statistically significant difference was obtained with regard to the sex of the subjects. Also, it was shown that the vertical position is the most common position of angulation of the lower third molars according to the Winter classification, while position 1A is the most common position of impaction of the lower third molars according to the Pell & Gregory classification. Conclusion: The research determined the frequency of positions of impacted lower third molars according to Winter and Pell & Gregory classification systems. Classification systems for the position of impacted lower third molars are important when assessing the severity of the surgical procedure.