PMC5702779_01
A, Computed tomography (CT) image (axial slice) from the maxillary anterior region acquired from Patient 1 at the beginning of retraction. B, Osseous outgrowths at the end of retraction. C, CT image from the maxillary anterior region acquired at the end of retraction. D, Significant regression at the end of treatment.
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F1
At the end of the treatment, a significant reduction was observed (Figure 1).
PMC5702779_02
A, Computed tomography (CT) image (axial slice) from the maxillary anterior region acquired from Patient 2 at the beginning of retraction. B, Two osseous outgrowths: a bigger one between the right central and lateral incisors, and a smaller one between the right lateral incisor and canine. C, CT image from the maxillary anterior region acquired at the end of retraction. D, Osseous outgrowths at the end of treatment.
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F2
Two solitary osseous outgrowths emerged during the second month of retraction: a bigger one between the right central and lateral incisors, and a smaller one between the right lateral incisor and canine (Figure 2).
The three-dimensional superimposition of computed tomography images acquired at the beginning and end of retraction. The image in brown is the one acquired at the beginning of retraction, and the image in green is the one acquired at the end of retraction.
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F3
The osseous outgrowths had not regressed spontaneously until the end of treatment (Figure 3).
PMC5702779_03
A, Computed tomography (CT) image (axial slice) from the maxillary anterior region acquired from Patient 3 at the beginning of retraction. B, Extensive osseous outgrowths on the buccal maxilla during retraction. C, CT image from the maxillary anterior region acquired at the end of retraction. D, Osseous outgrowths 9 months after debonding.
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F4
Nine months after debonding, these outgrowths were still apparent; however, a significant regression was observed (Figure 4).