Abstract
The issue of the study was whether there are significant differences in time of dental development in patients with clefts from patients in a control group. The sample included groups of patients with isolated cleft palate (n=129), with complete unilateral cleft (n=119), and a control group (n=126).
In each individual the delay in dental development (the difference between dental and chronological age) was assessed in one OPG, and the data were statistically processed. There were found no statistically significant differences between the three groups in terms of delayed development of dentition.
No differences were found for individual age groups and gender of patients. In the group with isolated cleft palate there was not recorded any significant relationship between the development of dentition and the extent of the anomaly