[Associations between dietary factors and periodontal status among 12-year-old children in Arkhangelsk region].

Nutrition is an important determinant of human health particularly in childhood since dietary habits and metabolic patterns are formed during this period of life. Certain nutritional factors may increase the risk for periodontal diseases (PD). Considering the associations between periodontal health and cardiovascular diseases, studies on the associations between nutritional factors and periodontal diseases are of particular importance. The aim of the research was to study the patterns of consumption of certain foods associated with oral health according to the World Health Organization (WHO) and to assess the associations between these factors and PD among 12-year-old children in Arkhangelsk region of Russian Federation. Material and methods. In total, 1162 12-year-old children from 7 urban and 5 rural settings of Arkhangelsk region participated in a cross-sectional study. Dental status was assessed as recommended by the WHO (2013). To assess the periodontal status of a child, a communal periodontal index was used, which included 2 indicators: the presence of bleeding during probing and calculus. A WHOdeveloped questionnaire was used to study nutritional patterns related to oral health. Associations between socio-demographic factors and patterns of consumption of selected food items were assessed using Person's chi-squared tests. Associations between periodontal disease, bleeding, calculus, and nutritional factors were studied by multivariable logistic regression. Relationships between the number of affected sextans and frequency of consumption of selected foods was assessed using multivariable Poisson regression models. Results. More frequent consumption of sweet carbonated drinks was associated with male sex, rural living, and low educational levels of both parents. Higher levels of education for both mother and father were associated with more frequent consumption of fresh fruit (p=0.011 and p=0.002). The prevalence of dental calculus and the number of affected sextants with calculus were inversely related to the frequency of fresh fruit consumption (p=0.012 and p<0.001, respectively). The number of sextants with calculus and PD in general were inversely associated with the frequency of consumption of homemade jam and honey (p=0.036 and p=0.043, respectively). Conclusion. The frequency of consumption of the foods affecting oral health was significantly associated with socio-demographic factors in Arkhangelsk region. Daily consumption of fresh fruits was associated with lower prevalence of calculus. The lowest number of affected sextants with bleeding, calculus, and PD was revealed when homemade jams or honey was consumed at least once a week, but less than every day.