Related Experiment Video
Updated: Jun 25, 2026

Impact of Common Fruit Juices and Toothbrushing on the Discoloration of Primary Teeth
Published on: March 27, 2026
Prevalence and determining factors of traumatic injuries to primary teeth in preschool children
Flavia Robson1, Maria Letícia Ramos-Jorge, Cristiane Baccin Bendo
1Department of Pediatric Dentistry and Orthodontics, Federal University of Minas Gerais, Belo Horizonte, Brazil.
Insights
Dental injuries are common in Belo Horizonte preschoolers, affecting 39.1%. Boys and children with inadequate lip coverage face higher risks, highlighting a significant public health issue.
Area of Science:
- Pediatric Dentistry
- Public Health
- Epidemiology
Background:
- Traumatic dental injuries are a significant concern in pediatric populations.
- Understanding prevalence and risk factors is crucial for prevention strategies.
Purpose of the Study:
- To determine the prevalence of traumatic dental injuries in preschool children in Belo Horizonte, Brazil.
- To identify factors influencing the occurrence of these injuries.
Main Methods:
- A cross-sectional survey involving clinical examinations and parental questionnaires.
- 419 children aged 0-5 years from randomly selected preschools in Belo Horizonte were assessed.
Main Results:
- The prevalence of traumatic dental injuries was 39.1%, with enamel fractures being the most frequent type (49.7%).
- Boys (OR=1.62), children with inadequate lip coverage (OR=3.75), and those in state preschools (OR=1.97) showed significantly higher odds of injury.
Conclusions:
- Traumatic dental injuries represent a high prevalence and a public health problem among preschool children in Belo Horizonte.
- Risk factors such as gender, lip coverage, and type of preschool attendance require targeted intervention.
Abstract:
The objective of the study was to assess the prevalence of dental injuries and the influence of determining factors in preschool children from Belo Horizonte, Brazil. A cross-sectional survey was carried out through clinical examinations and the application of a questionnaire to the parents of 419 children aged 0 to 5 years attending preschool. The sample was stratified by region, type of institution and age. The eighteen preschools visited were chosen randomly. The prevalence of traumatic injury to primary teeth was 39.1%. Enamel fractures were the most common traumatic injury (49.7%). Boys were 1.62 times more likely to have dental injuries than girls. Children with inadequate lip coverage were 3.75 times more likely to have a traumatic dental injury than those with adequate lip coverage. Children attending state preschools had nearly two times greater chances of having dental trauma than children attending private preschools. It was concluded that the prevalence of dental injuries in preschool children is high in Belo Horizonte, Brazil and constitutes a public health problem.
Related Concept Videos
Teeth
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin and...
Tooth Anatomy
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.
Development of the Oral Microbiota
Traumatic Brain Injury l: Introduction
Prevalence and Incidence
Prevalence indicates the proportion of individuals in a population who have a specific disease or health condition at a...
Post-traumatic Stress Disorder
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events, are a...
