PMC3917525_01
Initial panoramic radiography.
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F1
The panoramic radiograph confirmed the suspected diagnosis; her upper right central incisor was impacted, the incisor radicular apex was closed, and the tooth was unable to erupt (Figure  1).
Splint being cemented. Intraoral photo.
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F2
The splint was cemented (Figures  2 and 3).
Splint being cemented. Occlusal intraoral photo.
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F3
The splint was cemented (Figures  2 and 3).
Banding of the upper arch.
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F4
Banding was performed using her deciduous teeth to ensure a better anchorage (Figure  4).
Expansion spring being positioned.
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F5
In the same session, an expansion spring was fixed between her left central incisor and her lateral right incisor to make space for the settling of her central incisor (Figure  5).
Tooth has almost reached the correct eruption zone.
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F6
Once her incisor reached the proximity of the correct eruption position, the splint eyelet was removed, and the button was replaced with a bracket that was later directly tied to the arch (Figure  6).
Tooth has reached its physiological position.
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F7
About 3 months after banding, the internal device was removed, and her tooth had reached its normal position (Figure  7).
Functional orthodontics.
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F8
We continued with orthodontic treatment via two Schwarz's plates, to obtain a slow expansion of the arches and improve their shape, postponing the final alignment of dental elements to a later stage when dental development was completed (Figure  8).
Final intraoral photo.
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F9
After treatment, a defect was visible in her smile at the gingival attachment level of her right central incisor, which was clearly more apical when compared to the contralateral tooth (Figure  9).