Risk factors associated with incisor injury in elementary school children

摘要: This study examined risk factors associated with incisor injury in 3396 third and fourth grade school children Alachua County, Florida. One of six orthodontists completed a standardized examination form for each child to assess severity injury, gender, age, race, skeletal relationships, morphologic malocclusion, exposure, interlabial gap, TMJ sounds, chin trauma, history lower facial trauma. five (19.2%) exhibited some degree injury. was limited single tooth 73.1% those while enamel predominated (89.4%). The majority the injuries (75.4%) were localized maxillary arch, central incisors most frequently traumatized. Chi-square tests association indicated that school, orthodontist, profile, mandibular horizontal positions (P < 0.05). Wilcoxon rank sum identified differences overjet, time screening, gap between without Results logistic regression analyses greater who had prognathic maxilla, older, male, overjet anterior spacing.