Malocclusions and traumatic injuries in disabled schoolchildren and adolescents in Kuwait.

The present study was carried out to determine the prevalence of malocclusion and traumatic injuries in disabled children and adolescents attending the special-needs schools in Kuwait. Included in the study were 818 children (438 males and 380 females), in the age groups of 3-20 years, who have visual impairment, hearing impairment, physical handicaps, or developmental disorders. The mean age of participants was 11.9 years. The survey was carried out according to the methods of WHO. The prevalence of severe malocclusion was 23.6%, and that of slight malocclusion was 37.0%. Children with Down syndrome (OR = 2.3; 95% CI = 1.51-3.52), those of increasing age (OR = 1.1; 95% CI = 1.01-1.10), and males (OR = 1.5; 95% CI = 1.05-2.07) had higher risk for the occurrence of severe malocclusion. Less than one-fifth of the subjects (16.9%) had traumatized anterior teeth. Severe malocclusion (OR = 1.8; 95% CI = 1.17-2.77) and increasing age (OR = 1.2; 95% CI = 1.13-1.26) were significant risk factors for the occurrence of traumatic injuries. We concluded that malocclusion and traumatic injuries are more prevalent among these subjects with disabilities than among the healthy population in Kuwait.