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Progress in Orthodontics
Fig. 3 | Progress in Orthodontics

Fig. 3

From: The effect of micro-osteoperforations on the rate of maxillary incisors' retraction in orthodontic space closure: a randomized controlled clinical trial

Fig. 3

Maxillary orientation. A, B, and C Orientation of the maxilla. A Frontal view: zygomatic maxillary sutures oriented parallel to the ground; B lateral view: palatal plane oriented parallel to the ground; C superior view: ANS and PNS oriented perpendicular to the ground. D, E, and F, landmarks selection to generate the reference planes: incisor foramen (D), greater palatine foramen, right and left (E), ANS and PNS (F)

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