Prevalence of malocclusion and orthodontic treatment needs among 15-year-old adolescents of the Arkhangelsk region

Relevance . Purpose of the study to assess prevalence malocclusion and orthodontic treatment needs among 15-year-old adolescents Arkhangelsk region. Materials methods This cross-sectional is a part Third National dental examination children Russian Federation. The sample consisted 1091 teenagers from 7 urban 5 rural settlements. assessed calculated Dental Aesthetic Index (DAI) evaluate according sex place residence. was presented by proportions with 95 % confidence intervals (CI) Wilson method. Categorical variables were compared using Pearson’s chi-squared test. numeric analyzed Mann-Whitney Results. 67% (95% CI: 64,2–69,8) without or location residence differences. mean DAI score 24,0 23,2–24,8) for 22,9 (22,5–23,4) (p < 0,001). 33,5 15-year-olds needed treatment, no differences in 18,7% exhibited overt malocclusion, 9,7% had severe 5,0% – very severe. Conclusions region remain high. higher than adolescents. All above mentioned indicates necessity prevent timely treat pathology