title: Traumatic dental injuries among 12-year-old Jordanian schoolchildren: an investigation on obesity and other risk factors.
abstract: BACKGROUND
  Traumatic dental injury (TDI) is an important public dental health problem among schoolchildren. The aim of the study was to investigate the relationship between TDIs, obesity, and other possible associated factors like gender, overjet, lip coverage, parents' education level and family income among 12-year old Jordanian schoolchildren.
  
  
  METHODS
  A cross-sectional population-based study examined a total of 1015 schoolchildren attending 34 schools randomly selected from urban and rural areas of Amman-the capital city of Jordan. The epidemiological classification adopted by WHO and modified by Andreasen et al. was used to classify TDIs. Obesity was defined according to the international cut-off points of body mass index for boys and girls between 2 and 20 years old.
  
  
  RESULTS
  The prevalence of TDIs was 16.3%. Enamel fracture was the most common type of TDIs (65%). Neither parents' education level nor family income had a significant effect on TDI occurrence (P > 0.05). Results of multiple logistic regression showed that TDIs were significantly more prevalent among males (OR = 1.42, CI; 1.01-2.01, P < 0.05), and children with inadequate lip coverage (OR = 1.95, CI; 1.35-2.81, P < 0.05). The relationship between TDIs and obesity was not statistically significant (P > 0.05).
  
  
  CONCLUSIONS
  Being a male with inadequate lip coverage was associated with higher probability of having a TDI. Obesity had no significant effect on the occurrence of TDIs.
authors.affiliation: Faculty of Dentistry, Department of Pediatric Dentistry, University of Jordan, Amman, P,O, Box 13595, Jordan. talbajjali@gmail.com.
authors.forename: Tala Tariq
authors.initials: TT
authors.lastname: Al-Bajjali
authors.forename: Lamis Darwish
authors.initials: LD
authors.lastname: Rajab
mesh_terms: D015992:Body Mass Index; D002648:Child; D003430:Cross-Sectional Studies; D003743:Dental Enamel / Q000293:injuries; D003804:Dentin / Q000293:injuries; D004522:Educational Status; D005260:Female; D006801:Humans; D007182:Income / Q000706:statistics & numerical data; D007597:Jordan / Q000453:epidemiology; D008046:Lip / Q000473:pathology; D008297:Male; D009765:Obesity / Q000453:epidemiology*; D057887:Overbite / Q000453:epidemiology; D050177:Overweight / Q000453:epidemiology; D010290:Parents / Q000193:education; D011159:Population Surveillance; D015995:Prevalence; D012307:Risk Factors; D012423:Rural Health / Q000706:statistics & numerical data; D012737:Sex Factors; D014082:Tooth Fractures / Q000453:epidemiology; D018677:Tooth Injuries / Q000453:epidemiology*; D014504:Urban Health / Q000706:statistics & numerical data
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