The aim of the study was to define the frequency and location of Carabelli's cusp as well as its expression level in children from Niš, aged between 7 and 18. We used the method by Zubov to analyse a sample of 480 study models for male and female orthodontic patients in Clinic of Stomatology, Niš (240 boys and 240 girls). Carabelli's cusp was found in 225 patients, which is 46,88 % of our examinees, although it was mostly present in males (54,22%). Most frequently, Carabelli's cusp was located on maxillary M1 (79.56%),whereas it rarely occurred simultaneously on both m2 and M1 (20.44%). Stages II and III were common for both genders. Stage II was common for female examinees (41.75%), whereas stage III was common for male examinees (39.34%). .
