Этнические особенности зубочелюстных дуг у населения Восточной Сибири

This work presents data about average values of distances between premolars and molars of upper and lower jaws, and tooth alignment length of different ethnic groups of Eastern Siberia (Russians, Buryats, Khakass and Tuvinians). We examined tooth alignment width and length of upper and lower jaws of 1121 people aged from 17 to 21. We established ethnical and anthropometrical peculiarities of dental arches formation. Buryats men had significantly wider and longer dental arch (p<0.001) than other examined ethnical groups. Buryats women had the same tendency. Correlation analysis was used to find the reasons and interrelation with dental arch peculiarities. Coefficient of correlation relations was observed mostly between couples of attributes such as dental arch length mesial and distal sizes of cutting and canine teeth coronas.