| 英文摘要 |
Clear aligner therapy (CAT) is an increasing popular alternative to conventional bracket therapy. This review summarized contemporary data regarding the history of CAT. The information regarding the advantages and disadvantages of CAT, biomechanical force and biological considerations, controlling orthodontic tooth movement (OTM) would be discussed in this review. The CAT is well accepted for their esthetics, comfort, good care of oral hygiene and periodontal status and suitable for interdisciplinary dental treatment. However, CAT was also considered as difficult compliance for the patients, uneasy to be handled by clinicians, unprecise root movement, difficult for the postoperative fixation in cases receiving orthognathic surgery, and high cost. The essence of orthodontic treatment is the application of forces and force systems to change the position of the teeth. Although CAT could replace the conventional brackets treatment on correction of malocclusions in some cases, the problems of limitations in clinical use still presented. The information was provided to explore the clinical evidence of CAT use. |
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