PMC4320318_01
Pretreatment photographs.
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F1
A 27-year-old man presented an anterior open bite relapse (Figures 1,2,3,4). Superimposition of the pretreatment and post-treatment cephalometric tracings highlighted the amount of extrusion of the maxillary incisors needed to resolve the open bite and confirmed that the mandibular plane angle remained stable (Figures 10,11,12,13,14, Table 1).
Sagittal cone-beam computed tomography image showing thin mandibular symphysis.
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F5
The scan showed extremely thin mandibular symphysis, which can markedly affect mandibular incisor inclination during orthodontic treatment (Figure 5).
Coronal cone-beam computed tomography image showing nasal septum deviation, right turbinate hypertrophy, and left maxillary sinus congestion.
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F6
In addition, nasal septum deviation, right turbinate hypertrophy, and left maxillary sinus congestion were visible (Figure 6).
Post-treatment photographs.
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F10
Superimposition of the pretreatment and post-treatment cephalometric tracings highlighted the amount of extrusion of the maxillary incisors needed to resolve the open bite and confirmed that the mandibular plane angle remained stable (Figures 10,11,12,13,14, Table 1).
Tongue elevator for retention.
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F15
The patient was instructed to wear a tongue elevator (Figure 15) for retention at night.