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Association between occlusal anomalies and dental caries in 3- to 5 year-old Brazilian children.

Journal of Orthodontics, 2011

Abstract Objective: To investigate the association between certain occlusal anomalies and the occurrence and severity of dental caries in Brazilian preschool children.
Five trained and calibrated observers examined children for determination of decayed, missing and filled tooth (dmft) index (World Health Organization criteria including white spots) and orthodontic variables.
Statistical analysis: Multivariable analysis was performed using Poisson regression with robust variance in order to determine the occlusal anomalies which represent risk factors for the occurrence of the binary outcome.
Results: Caries severity was significantly higher among children without spacing in the maxillary anterior teeth (P = 0·001) and mandibular anterior teeth (P = 0·003) and among children without accentuated overjet (P = 0·023).
The multivariable analysis demonstrated that children without spacing in maxillary anterior teeth had an increased risk of dental caries (prevalence ratio = 1·43; 95% CI, 1·05-1·93).
Open bite, accentuated overjet and posterior cross-bite were not associated with this outcome in the final model.
Conclusions: Absence of spacing in the maxillary labial segment represents a risk factor for dental caries in preschool children.
Exploring factors associated with traumatic dental injuries in preschool children: a Poisson regression analysis.
Dental caries in 0- to 5-year-old Brazilian children: prevalence, severity, and associated factors.
Oral disease and social class in a random sample of five-year-old preschool children in a Brazilian city.