[Prevalence of periodontal disease among adolescents in the Nenets autonomous area].

Abstract

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.