ISSN: 1859 - 2872
Efficacy of tooth movement with clear aligners: Systematic review
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Abstract
Objective: To evaluate the scientific evidence related to the tooth movement outcome of orthodontic treatment with clear aligners from 2010 to 2020. Subject and method: An electronic searched for articles on the databases PubMed, ScienceDirect, Google Scholar published from January 2010 to the end of 2020 to identify all peer-reviewed articles potentially relevant to the review. Data collected from each article included: author, year of publication, study design, sample size, intervention, comparison, and treatment outcome. Methodological limitations were highlighted and the quality of articles was scored using tools such as: Risk of Bias In Non-randomized Studies of Interventions (ROBINS-I) for cohort studies and Cochrane Risk of Bias Tool for randomized controlled clinical trials. Result: Twelve relevant articles were selected, one was a randomized controlled clinical trials, two were prospective cohort studies, and nine were retrospective cohort studies. Sample sizes ranged from 16 to 75, with a total of 477 patients. Most of the covered studies assessed predictability of tooth movement comparing post-treatment patient models to the predicted digital planned tooth movement models (ClinCheck ®, Vectra, Canfield Scientific). Conclusion: Current studies have low to moderate evidence in the outcome of tooth movement when use clear aligners for some cases. Most tooth movements are not equivalent to a specialized software-based treatment plan for clear aligners, except for small horizontal tooth movements.
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References
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