What does “Clear aligner attachments” mean?
In clear aligner treatment, an attachment is a small addition bonded to the tooth surface to help the appliance produce planned tooth movements. It is usually made from tooth-coloured composite resin, with its location and shape selected according to the movement plan.
Understand its role between the aligner and tooth
An attachment bonded to a tooth engages the clear tray to help tooth movement. The number alone does not establish treatment difficulty or effectiveness; ask which movement each attachment is intended to support. Its shape and position must be considered alongside aligner fit.
Manage appearance, cleaning and insertion together
Even tooth-coloured attachments may show depending on their position and shape, so discuss appearance beforehand. Clean the teeth and around attachments, and follow individual instructions for inserting and removing trays. Do not file or remove an attachment yourself because it feels uncomfortable.
Report lost attachments or a tray that does not seat properly
Tell the team where the attachment has come off or the tray does not fit, and which aligner stage you are using. The team should confirm whether rebonding is needed and whether to progress to the next tray. Do not use glue or change the treatment sequence independently; also discuss later removal and retention.
Frequently Asked Questions
Can attachments make clear aligner treatment visible?
Yes. Separate from the clear tray, attachments may be visible depending on position and shape. Ask about the actual components and expected appearance.
Can I move to the next tray if one attachment falls off?
Contact the team rather than deciding yourself. Rebonding and progression need to be checked according to the attachment involved and the current tray's fit.
Checking the role and care of aligner attachments
Learn what the term means and how it relates to your dental condition.
- Sufficient understanding
Which tooth movements require these attachments?
Explanation and evidenceAsk about position, shape and movement goals, how the tray engages them, expected appearance and possible limitations.
British Orthodontic Society: Aligner attachment function and reporting attachment loss (COVID-19 archive guidance) - Care after treatment
How should I clean, insert and remove trays, and handle a lost attachment?
Explanation and evidenceConfirm individual care instructions, contact arrangements for poor fit or attachment loss, decisions about rebonding and progression, and later retention.
British Orthodontic Society: Aligner attachment function and reporting attachment loss (COVID-19 archive guidance)
Further reading and references
Further reading
References
- British Orthodontic Society: Adult orthodontics and attachments for clear appliances (2024)bos.org.uk (opens in a new tab)
- British Orthodontic Society: Aligner attachment function and reporting attachment loss (COVID-19 archive guidance)archive.bos.org.uk (opens in a new tab)
- NHS: Orthodontic appliance components, care and retentionnhs.uk (opens in a new tab)

