Analysis of the Prevalence of Traumatic Dental Injuries in the Primary Dentition: Findings From a Cohort Study Involving 4‐Year‐Old Children From South Brazil.

ABSTRACT Objective Methods Results Conclusion To identify factors associated with the prevalence of traumatic dental injuries (TDI) in children at 4 years of age.Participants from the 2015 Pelotas (Brazil) birth cohort were included. Demographic, socioeconomic, behavioral, and environmental data were collected through interviews and physical examinations during cohort follow‐up. Dental examination at 4 years of age revealed the presence of TDI. A theoretical model was constructed using a directed acyclic graph (DAG). A descriptive analysis was performed, followed by Poisson regression models relating TDI to each outcome.Data from 3650 4‐year‐old children were analyzed; the prevalence of dental trauma was 20.2% (95% confidence interval [CI] 18.9%–21.5%). The prevalence of TDI was lower among girls compared with boys, suggesting a protective effect of female sex (relative risk [RR] 0.80 [95% CI: 0.79–0.91]). Increased height for age (RR 1.55 [95% CI: 1.14–2.09]), increased overjet (RR 1.45 [95% CI: 1.2–1.74]), and anterior open bite (RR 1.26 [95% CI: 1.01–1.56]) demonstrated an association with TDI after testing regression models based on DAGs.Male sex, increased height, and increased overjet and open bite were factors predisposing to TDI at 4 years of age. Understanding these factors can contribute to the implementation of targeted prevention strategies for reducing TDI and their potential long‐term consequences. [ABSTRACT FROM AUTHOR]