Traumatic dental injuries in 3- to 13-year-old boys in Monterrey, Mexico.

The purpose of this retrospective study was to analyze, by age, the prevalence of traumatic injuries to primary and permanent incisors, and their distribution according to type in a group of boys from private schools in Monterrey, Mexico. The sample consisted of 1010 boys aged 3-13 years enrolled in 4 private schools in the city. Garcia-Godoy's classification for traumatic injuries was used. The prevalence of injuries was 28.4%; 72.2% of the 4-year-olds examined presented signs of traumatic dental injuries. Thirty-seven percent of the 11-year-olds examined had evidence of traumatic dental injuries. The most common type of injury in the primary and permanent dentitions was enamel fracture (58.5% and 69.6%, respectively).