RESUMO
BACKGROUND: Hypomineralised second primary molar (HSPM) is a developmental enamel defect associated with dental caries. AIM: To evaluate the impact of HSPM on oral health-related quality of life (OHRQoL) in preschoolers through hierarchical analysis. DESIGN: This population-based cross-sectional study assessed 834 5-year-old preschoolers, in Teresina, Piauí, Brazil, using sociodemographic questionnaires and Early Childhood Oral Health Impact Scale (ECOHIS). Dental examination was performed by two calibrated examiners (κ ≥ 0.80) for the diagnosis of HSPM (EAPD), dental caries (dmft and pufa indices), and malocclusion (Foster and Hamilton criteria). Analysis of the determinants of OHRQoL was stratified at three levels (P < .05). RESULTS: Severe HSPM was associated with OHRQoL in bivariate analysis (P < .05). In adjusted final multivariate analysis (model 1), the presence of dental caries with or without clinical consequences was associated with worse OHRQoL (P < .05). In model 2, after the removal of dental caries, preschoolers with severe HSPM had greater probability of having a negative impact on OHRQoL in the child impact section (RR = 2.14; 95% CI = 1.26-3.65), family impact section (RR = 1.99; 95% CI = 1.16-3.42), and total score (RR = 2.09; 95% CI = 1.25-3.49) of the ECOHIS. CONCLUSION: Severe HSPM had a negative impact on the OHRQoL of preschoolers and their families, but the presence of dental caries neutralised this impact.
Assuntos
Cárie Dentária , Qualidade de Vida , Brasil/epidemiologia , Criança , Pré-Escolar , Estudos Transversais , Cárie Dentária/epidemiologia , Humanos , Dente Molar , Saúde Bucal , Inquéritos e QuestionáriosRESUMO
Purpose: To evaluate the relationship between type and duration of breastfeeding and the development of malocclusion in primary dentition.
Methods: A cross-sectional observational study was conducted with children of both sexes, aged 30 to 48 months, who attended to a dental program for maternal and child care. The mothers completed a questionnaire about the form (exclusive breast-feeding or not) and duration of breastfeeding, their children's non-nutritive sucking habits, and their sociodemographic information. The clinical examination was done by a calibrated examiner in the knee-to-knee position and under indirect light to evaluate the primary occlusion. Pearson's chi-square test or Fisher's exact test and Poisson regression were performed for statistical analysis.
Results: Over 45 percent of 252 children who were evaluated had malocclusion, such as anterior open bite (13.6 percent), posterior crossbite (3.6 percent), anterior crossbite (2.8 percent), midline shift (21.5 percent), overbite (19.8 percent), and overjet (32.9 percent). Children who were exclusively breastfed for less than six months had a 50 percent higher prevalence of anterior open bite (P =0.009) compared to those who had exclusive breastfeeding for more than six months.
Conclusion: Exclusive breastfeeding for less than six months was associated with anterior open bite. The other malocclusion types were not associated with the time and type of feeding the children received in the early phase of the primary dentition. (J Dent Child 2019;86(1):17-23)
Received August 29, 2018; Last Revision November 20, 2018; Accepted January 3, 2019.