Clear-aligner treatment, are orthodontic devices that uses incremental transparent aligners to adjust teeth as an alternative to dental braces. Clear-aligner treatment involves taking a mold of the patient's teeth by the dentist, which is used to create a digital tooth scan.

The computerized model suggests stages between the current and desired teeth positions, and aligners are created for each stage. These slowly move the teeth into the position. Clear aligners are indicated and well suitable for "mild to moderate crowding (1–6 mm) and mild to moderate spacing (1–6 mm)", in cases where there are no discrepancies of the jawbone.