microaligners

Microaligners are a category of removable orthodontic aligners designed to achieve minor dental movements through small, sequential steps. The concept emphasizes limited tooth movement per tray, often in cases of mild crowding, small diastemas, or simple rotations, where a full set of conventional aligners would be considered unnecessary. In many practices, microaligners are offered as a milder, shorter alternative to comprehensive aligner therapy, and may be used alone or as a finishing stage after a primary treatment.

Digital workflow and fabrication rely on intraoral scans or scans from models, computer-assisted treatment planning, and manufacturing by thermoforming or 3D printing of clear trays. Treatments typically involve frequent changes of aligners at short intervals, commonly one to two weeks, with a recommended daily wear of about 20 to 22 hours and removal only for eating, brushing, and flossing.

Indications are generally limited to minor malocclusions, mild crowding, localized rotations, and small spacing corrections. They are less suitable for complex bite issues, vertical control, significant translations, or tooth extrusion, and outcomes may require refinements or transition to conventional aligners or other modalities.

Clinical evidence on microaligners is less extensive than for full-system aligners, and effectiveness depends on case selection, material properties, and patient compliance. The term and specifications vary by manufacturer, and practitioners should refer to product guidelines for exact indications and protocols. The development of microaligners reflects broader trends in digital dentistry and the move toward patient-friendly, removable orthodontic solutions.