Introduction. The group of morphological features that distinguish a male from a female is called sexual dimorphism. Aim. The aim of this study was to perform cephalometric analysis of the facial soft tissues between a group of boys and girls without congenital craniofacial defects (including the mesial‑distal width of the teeth) in order to demonstrate the anatomical differences between genders in the early stages of puberty. Material and methods. We selected 44 patients for analysis – 22 females (12–15 years) and 22 males (14–17 years) being skeletal class 1 without any disorders that could affect the facial profile. With the help of the Ortho Studio 1.1.0.5735 computer program, models and diagnostic lateral cephalograms were measured. The obtained measurements were analysed and male/female facial profiles were rated on the basis of them. Results. The study showed differences between the values of the analysed parameters: the anterior‑posterior teeth value between males and females. The dentition of young people turned out to be slightly wider than the so‑called reference values. Differences between the values of other parameters for girls and boys were found. The correlation analysis between the anterior‑posterior width of the teeth and cephalometric facial profile parameters showed a further differentiation between the faces of girls and boys, which was confirmed by statistical tests. The presented results of this research as well as the research by other authors show that in terms of analysing the face, gender should be taken into account when planning orthodontic treatment.

Key words: cephalometric, sexual dimorphism, Bolton Index, soft tissue analysis.