Root resorption after aligner therapy

Root resorption is an unavoidable and irreversible process which can lead to shortening of the root apex and is an adverse event post and during orthodontic treatment. It can unpredictably occur with any treatment modality, including aligners. More precise treatment planning and patient's compliance can further aid in reducing the uneventful root resorption. Clear aligner therapy is not inferior to light force fixed orthodontics appliances but are superior to heavy-force orthodontic appliances in the terms of the risk of developing root resorption.