Evaluating the effectiveness of clear aligner therapy in leveling the curve of spee: a comparative study of extraction vs. non-extraction patients

Abstract Background The proper leveling of curve of Spee (CoS) is critical in orthodontic treatment. However, achieving a leveled CoS using clear aligner therapy (CAT), particularly in cases involving premolar extractions, poses significant challenges. This retrospective study aims to evaluate the e...

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Bibliographic Details
Main Authors: Zhenxing Tang, Ke He, Yang Shen, Yanran Yang, Yu Li
Format: Article
Language:English
Published: BMC 2025-04-01
Series:BMC Oral Health
Subjects:
Online Access:https://doi.org/10.1186/s12903-025-06012-3
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