OBJECTIVE
To study the prevalence of periodontal disease (PD) among adolescents in the Nenets autonomous area (NAO).
MATERIALS AND METHODS
A total of 250 adolescents aged 15—17 years participated in a cross-sectional study as a part of State Assignment No. 056—00121-18-00 in the NAO. Periodontal status was assessed using a periodontal button probe. Results were presented as proportions for the prevalence and as arithmetic means for the number of affected sextants with 95% confidence intervals (CI). Categorical data were analyzed using chi-square tests, and discrete data were analyzed using Poisson regression. Risk ratios (RR) with CIs were calculated using robust standard errors to account for overdispersion.
RESULTS
The prevalence of PD was 38.8% (95% CI: 33.0—45.0). The prevalence of bleeding and calculus was 19.2% (95% CI: 14.8—24.5) and 28.4% (95% CI: 23.2—34.3), respectively. The mean number of sextants was 0.91 (95% CI: 0.73—1.10), while the mean number of sextants with bleeding was 0.37 (95% CI: 0.25—0.49), and with calculus was 0.57 (95% CI: 0.42—0.71) Girls had fewer affected sextants (RR=0.61 (95% CI: 0.41—0.91)). The number of affected sextants among the Nenets was twice as high compared to the Russians (RR=2.07 (95% CI: 1.14—3.76)). Urban residents had fewer affected sextants than rural residents (RR=0.38 (95% CI: 0.18—0.80)). Seventeen-year-olds had twice as many affected sextants as the 15-year-olds (RR=1.94 (95% CI: 1.09—3.46)).
CONCLUSION
The results of the study can be used to develop effective dental preventive programs considering the socio-demographic characteristics of adolescents in the NAO.