Raquel G Vieira-Andrade1, Clarissa L Drumond2, Paulo A Martins-Júnior3, Patrícia Corrêa-Faria1, Geruza C Gonzaga4, Leandro S Marques5, Maria L Ramos-Jorge6. 1. Doctoral student, Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil. 2. Master student, the Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Federal University of Vales do Jequitinhonha e Mucuri, Diamantina, Minas Gerais, Brazil. 3. Doctoral student, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil. 4. Postdoctoral student, the Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Federal University of Vales do Jequitinhonha e Mucuri, Diamantina, Minas Gerais, Brazil. 5. PhDs and associate professor, the Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Federal University of Vales do Jequitinhonha e Mucuri, Diamantina, Minas Gerais, Brazil. 6. PhDs and associate professor, the Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Federal University of Vales do Jequitinhonha e Mucuri, Diamantina, Minas Gerais, Brazil. mlramosjorge@gmail.com.
Abstract
PURPOSE: The purpose of this study was to evaluate the prevalence of sleep bruxism and associated factors in three- to five-year-olds. METHODS: A representative cross-sectional study was conducted with a sample of 749 preschool children during immunization campaigns. Data acquisition involved an oral clinical exam, anthropometric measures, and a questionnaire administered in interview form. All data were analyzed using the chi-square test and Poisson regression with robust variance with the aid of SPSS software. RESULTS: The prevalence of sleep bruxism among preschool children was approximately 14 percent. Statistically significant associations were found: between sleep bruxism and lower dental crowding (prevalence ratio=3.38; 95% confidence interval=1.9-5.7); for the habit of biting on objects (PR=2.49; 95% CI=1.4-4.4); for duration of breast-feeding for a period longer than 12 months (PR=1.98; 95% CI=1.2-3.2); and for bottle-feeding for more than 24 months (PR=1.93; 95% CI=1.2-3.1). CONCLUSIONS: Lower arch crowding, the habit of biting on objects, and prolonged breast-feeding and bottle-feeding were associated with sleep bruxism in the preschool children analyzed in the present study.
PURPOSE: The purpose of this study was to evaluate the prevalence of sleep bruxism and associated factors in three- to five-year-olds. METHODS: A representative cross-sectional study was conducted with a sample of 749 preschool children during immunization campaigns. Data acquisition involved an oral clinical exam, anthropometric measures, and a questionnaire administered in interview form. All data were analyzed using the chi-square test and Poisson regression with robust variance with the aid of SPSS software. RESULTS: The prevalence of sleep bruxism among preschool children was approximately 14 percent. Statistically significant associations were found: between sleep bruxism and lower dental crowding (prevalence ratio=3.38; 95% confidence interval=1.9-5.7); for the habit of biting on objects (PR=2.49; 95% CI=1.4-4.4); for duration of breast-feeding for a period longer than 12 months (PR=1.98; 95% CI=1.2-3.2); and for bottle-feeding for more than 24 months (PR=1.93; 95% CI=1.2-3.1). CONCLUSIONS: Lower arch crowding, the habit of biting on objects, and prolonged breast-feeding and bottle-feeding were associated with sleep bruxism in the preschool children analyzed in the present study.
Authors: Priscila Figueiredo Cruz Ramos; Marina de Deus Moura de Lima; Marcoeli Silva de Moura; Cristiane Baccin Bendo; Lúcia de Fátima Almeida de Deus Moura; Cacilda Castelo Branco Lima Journal: Sleep Breath Date: 2021-01-04 Impact factor: 2.816