The mental health and well‐being of individuals can be positively affected by improving facial appearance through orthodontic treatment. However, research is limited on the relationship between facial appearance and self‐concept of individuals with intellectual disabilities.. To read the full article, log in using your NHS Athens details. To access full-text: click “Log in/Register” (top right hand side). Click ‘Institutional Login’ then select 'OpenAthens Federation', then ‘NHS England’. Enter your Athens details to view the article.