Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 45 12 2016 12 27 1586 1594 Alessandro L. CAVALCANTI Dept. of Public Health, State University of Paraiba, Campina Grande, Brazil Ianny A. RAMOS Dept. of Dentistry, State University of Paraiba, Campina Grande, Brazil Andreia M. R. CARDOSO Dept. of Dentistry, State University of Paraiba, Campina Grande, Brazil Liege Helena F. FERNANDES Dept. of Dentistry, State University of Paraiba, Campina Grande, Brazil Amanda S. ARAGÃO Dept. of Dentistry, State University of Paraiba, Campina Grande, Brazil Fábio G. SANTOS Dept. of Dentistry, State University of Paraiba, Campina Grande, Brazil Yêska P. C. AGUIAR Dept. of Dentistry, State University of Paraiba, Campina Grande, Brazil Danielle F. CARVALHO Dept. of Public Health, State University of Paraiba, Campina Grande, Brazil Carla C. M. MEDEIROS Dept. of Public Health, State University of Paraiba, Campina Grande, Brazil Renata De S. C. SOARES Dept. of Public Health, State University of Paraiba, Campina Grande, Brazil Ricardo D. CASTRO Dept. of Clinics and Social Dentistry, Federal University of Paraiba, Joao Pessoa, Brazil 2016 12 27 2016 12 27 Background: Obesity is a serious problem of public health and affects all socio-economic groups, irrespective of age, sex or ethnicity. The aim of this study was to evaluate the association between periodontal condition and nutritional status of adolescents. Methods: This was a cross-sectional study using a probability cluster sampling, and the sample was defined by statistical criterion, consisting of 559 students aged 15-19 yr enrolled in public schools of adolescents of Campina Grande, PB, Brazil in 2012. Socioeconomic characteristics were analyzed, as well as self-reported general and oral health, anthropometric data and periodontal condition (CPI and OHI-S). Descriptive and analytical analysis from bivariate and multivariate Poisson regression analysis with 5% significance level was performed. Results: Of the 559 adolescents, 18.6% were overweight and 98.4% had some form of periodontal changes such as: bleeding (34.3%), calculus (38.8%), shallow pocket (22.9%) and deep pocket (2.3%). There was association between presence of periodontal changes with obesity (P<0.05; CI 95%: 0.99 [0.98 - 0.99]). Conclusion: The association between presence of periodontal changes and obesity status in adolescents was indicated.     https://ijph.tums.ac.ir/index.php/ijph/article/view/8633 https://ijph.tums.ac.ir/index.php/ijph/article/download/8633/5402