Pacific Coast Society of Orthodontists Bulletin Spring 2023 - 50

Case Report
Figure 6. Progress shown in panoramic radiograph
prior to refinement aligners
wear on the right side. The position of the
mandibular right second molar was overcorrected
with exaggerated mesial root tip and
virtual IPR to ensure the space between the
mandibular right second molar and mandibular
right second premolar was closed (Figure
6). The first refinement included 28 sets of
aligners.
At the end of the first refinement, Class I
occlusion had been achieved bilaterally and
the mandibular right second molar had been
adequately uprighted, but the contact was
light, both arches were leveled, and there was
an open tendency in the maxillary lateral and
canine area. It was decided to proceed with
one more refinement that included additional
derotation and mesialization of the mandibular
right second molar and extrusion of the
maxillary left lateral and canine to improve the
anterior overbite. This refinement consisted of
10 additional sets of aligners.
Treatment Results
Overall, the patient's chief concern was
addressed, and the treatment outcome was
acceptable. The total treatment time was 30
months. The intraoral photos show adequate
Class I occlusion with ideal overbite and overjet,
significant uprighting and mesialization of
the mandibular right second molar, midline
improvement, and maintenance of his facial
and skeletal harmony.
The panoramic radiograph showed no evidence
of excessive blunting or root shortening.
There was significant improvement in the
root position of the mandibular right second
molar, and the third molar appeared to be in a
favorable position for future eruption. The initial
and final cephalometric radiographs were
superimposed. The overall treatment superimposition
showed favorable downward and
Figure 7. Invisalign refinement setup showing overcorrection of the curve of Spee and lower
right second molar
Figure 8. Posttreatment facial and intraoral photos (K.G. 15 years, 9 months)
Figure 9. Posttreatment digital dental models (K.G. 15 years, 9 months)
50
PCSO Bulletin Spring 2023

Pacific Coast Society of Orthodontists Bulletin Spring 2023

Table of Contents for the Digital Edition of Pacific Coast Society of Orthodontists Bulletin Spring 2023

Pacific Coast Society of Orthodontists Bulletin Spring 2023 - 1
Pacific Coast Society of Orthodontists Bulletin Spring 2023 - 2
Pacific Coast Society of Orthodontists Bulletin Spring 2023 - 3
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Pacific Coast Society of Orthodontists Bulletin Spring 2023 - 5
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Pacific Coast Society of Orthodontists Bulletin Spring 2023 - 49
Pacific Coast Society of Orthodontists Bulletin Spring 2023 - 50
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Pacific Coast Society of Orthodontists Bulletin Spring 2023 - 52
Pacific Coast Society of Orthodontists Bulletin Spring 2023 - 53
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Pacific Coast Society of Orthodontists Bulletin Spring 2023 - 64
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