• 1 Department of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, 50603, Malaysia.
  • 2 Orthodontic Unit, Klinik Pergigian Cahaya Suria, Ministry of Health Malaysia, Kuala Lumpur, 55100, Malaysia
  • 3 Department of Community Oral Health and Clinical Prevention, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, 50603, Malaysia
J Orofac Orthop, 2021 May 03.
PMID: 33938957 DOI: 10.1007/s00056-021-00298-y


PURPOSE: The sociodental model integrates clinical assessment, perceived impacts of malocclusion on quality of life, and behavioural propensity when prioritising orthodontic treatment. This study compares the effect of using different instruments to measure impact-related need on the assessment of orthodontic treatment need based on the sociodental framework.

MATERIALS AND METHODS: In this cross-sectional study, 206 Malaysian adolescents (age: 11-18 years) were screened in orthodontic clinics to identify those with normative need, oral impacts due to malocclusion, and having high and medium-to-high behavioural propensities. The Index of Orthodontic Treatment Need classified normative need. The Psychosocial Impact of Dental Aesthetics (PIDA) questionnaire and the Condition-Specific Child-Oral Impacts on Daily Performances (CS-OIDP) index measured oral impacts. Subjects' behavioural propensities for successful treatment outcome were based on the Basic Periodontal Examination and International Caries Detection and Assessment System. Data were analysed using the McNemar test.

RESULTS: The response rate was 99.0%. Estimates of normative need (89.7%) were significantly reduced under the sociodental model by 65.7% (p 

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.