Finite element analysis of C-expanders with different vertical vectors of anchor screws
American Journal of Orthodontics and Dentofacial Orthopedics(2021)
摘要
•Stress was concentrated around the anchor screws in all 5 models.•Maxillary molars were displaced posteriorly, buccally, and superiorly in all models.•Different vectors of anchor screws do not change the pattern of palatal expansion.
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