Down Syndrome Children, Malocclusion Characteristics and the Need for Orthodontic Treatment Needs (IOTN): A Cross-Sectional Study.

The purpose of the present study was to assess the characteristics of malocclusion and determine the orthodontic treatment needs of a group of children with Down syndrome. The study group comprised 23 children aged 10-14 years with Down syndrome who were attending special schools. A clinical examination was performed to measure several parameters that assessed malocclusion as well as classifications based on the Index of Orthodontic Treatment Need (IOTN-DC). When the dental health component (DHC) of the IOTN-DC was considered, results showed that a high percentage of children involved in the current study needed orthodontic treatment (81.9%). Moreover, 59.1% showed Angle's class-III malocclusion compared to 36.4% who showed class I. However, the differences between the IOTN-DC values for the boys and girls were not statistically significant ( > 0.05). The present study has concluded that a higher percentage of children, suffering from Down syndrome, had very severe malocclusion; therefore, treatment can be considered mandatory. Similarly, more than three-fourths of the children with Down syndrome had visited a dental clinic at least once during their life. However, 30.4% of the children's mothers have mentioned that they had not visited any orthodontic clinic. Therefore, there is a need to develop awareness and knowledge among the parents of children suffering from Down syndrome.