INTRODUCTION: The cranial base is a relatively stable area of the craniofacial region used in many radiographic cephalometric analyses. The cephalometric analyses are generally based on the Caucasian cephalometric standards and there has been concern about elaborating the cephalometric analysis to be more specific for the Bulgarian patients.
AIM: The aim of the present study was to determine the cephalometric norms of the cranial bases for the Bulgarian population and to compare them to other standards.
MATERIALS AND METHODS: Lateral cephalograms of 90 orthodontically untreated Bulgarian adults with clinically excellent occlusion were evaluated and the anteroposterior skeletal measurements of the cranial base were assessed using standard cephalometric analyses. The data were processed with statistical package SPSS 19.0.
RESULTS: Based on gender, we established statistically significant differences. The mean values of cranial base indicators did not differ between subjects of different age in the sample.
CONCLUSION: The mean values for the total sample can be used as cephalometric standards for Bulgarians. Cephalometric values identified for Bulgarian subjects are expected to help in the simplification of orthodontic diagnoses.
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