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Updated: May 4, 2026

Oral Health Assessment by Lay Personnel for Older Adults
Published on: February 2, 2020
Malocclusion and orthodontic treatment need evaluated among subjects with Down syndrome using the Dental Aesthetic
Farah S Abdul Rahim1, Alizae M Mohamed, Murshida Marizan Nor
1a Postgraduate student, Department of Orthodontics, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
Objective:
To determine the prevalence of malocclusion and need for orthodontic treatment among persons with Down Syndrome (DS).
Materials And Methods:
Study participants were 113 persons with DS from the selected community-based rehabilitation center who fulfilled the inclusion and exclusion criteria. Ten occlusal characteristics of the Dental Aesthetic Index (DAI) were measured on study models to determine the degree of malocclusion. A single score represented the dentofacial anomalies, determined the level of severity, and determined the need for orthodontic treatment.
Results:
Crowding in the anterior maxillary and mandibular arch was the main malocclusion problems among the subjects with DS. Comparison between age group and genders revealed no significant differences in four categories of orthodontic treatment need (P > .05).
Conclusion:
Most of the subjects with DS (94; 83.2%) had severe and very severe malocclusion, which indicated a desirable and mandatory need for orthodontic treatment.
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