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Progress in Orthodontics
Fig. 4 | Progress in Orthodontics

Fig. 4

From: Biomechanical analysis of effective mandibular en-masse retraction using Class II elastics with a clear aligner: a finite element study

Fig. 4

Loading method to simulate anterior en-masse retraction. a The displacement load was applied to the aligner by 0.25-mm lingual movement of the incisors and canine along the occlusal plane. b The upper right corner showed the force value of each tooth. A-H represented the forces exerted on the central incisor, the second incisor, the canine, the second premolar, the first molar and the second molar, respectively

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