Clear aligner attachments are an essential component of contemporary aligner therapy, enhancing the predictability and efficiency of tooth movement. These composite auxiliaries are strategically bonded to teeth to improve retention and facilitate complex movements such as rotation, extrusion, intrusion, and root torque. Recent advancements in digital orthodontics and biomechanical planning have led to the development of optimized attachment designs tailored to specific tooth movements. This library dissertation aims to review the evolution, classification, biomechanics, clinical applications, and effectiveness of aligner attachments, along with their limitations and future prospects in orthodontic treatment.
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