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Progress in Orthodontics
Fig. 2 | Progress in Orthodontics

Fig. 2

From: Stress and movement trend of lower incisors with different IMPA intruded by clear aligner: a three-dimensional finite element analysis

Fig. 2

FE model and intrusion design. A CA including rectangular attachments on the labial surfaces of mandibular canines (blue), teeth (pink), PDL (yellow). B Aligner before (yellow) and after (blue) the mandibular incisors were simultaneously intruded by 0.2 mm. C Dentition before (yellow) and after (pink) the mandibular incisors were simultaneously intruded by 0.2 mm

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