Malocclusion is not a disease but rather a set of dental deviations which in some cases can influence quality of life. Estimates of different traits of malocclusion are available from a number of countries, primarily in North America and northern Europe . For example, prevalences of dento-facial anomalies have been reported at about 10%, according to the Dental Aesthetic Index (6). Other conditions that may lead to special oral health care needs include Down syndrome, cerebral palsy, learning and developmental disabilities, and genetic and hereditary disorders with orofacial defects.