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Progress in Orthodontics
Fig. 5 | Progress in Orthodontics

Fig. 5

From: Three-dimensional oropharyngeal airway changes after facemask therapy using low-dose computed tomography: a clinical trial with a retrospectively collected control group

Fig. 5

Anatomical landmarks used in low-dose CTs superimposition (image registration, a and b) and these are: 1. Tip of clivus. 2. Tip of the nasal bone. 3. Right foramen ovale. 4. Left foramen ovale. 5. Right foramen spinosum 6. Left foramen spinosum. Midsagittal slice of registered images and models (c). Isometric view of registered T1 (blue airway) and T2 (red airway; d)

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