Notice small tooth-coloured bumps on some patients' teeth during Invisalign treatment? Those are attachments — here's exactly what they do and why some cases need them.
Invisalign attachments (sometimes called SmartForce attachments) are small, tooth-coloured composite shapes bonded temporarily to specific teeth. They give the aligner extra grip points to perform more complex movements — rotation, extrusion, or precise tipping — that plastic alone can't achieve as predictably.
Why Some Cases Need Them and Others Don't
Simple cases — mild spacing or minor crowding — often don't need any attachments. More complex movements, like rotating a canine or extruding a tooth into an open bite, typically require one or more attachments to achieve predictable, accurate results as planned in your ClinCheck.