
evaluate airway instead of dynamic MRI and these
parameters were correlated with changes in tongue height
and length instead of tongue deformation. Changes in SNA
and SNB angles were not evaluated in our study.
Conclusions
From the findings of this study, it can be concluded that
expansion of the skeletal tissues shows corresponding
changes in the oropharyngeal soft tissues. Mandibular
advancement surgery is a viable option for improvement in
pharyngeal airway in skeletal Class II patients with ret-
rognathic mandible. The changes in tongue length observed
in our stud y may correspond to the stretch of protruders of
the tongue, especially genioglossus, and may point toward
relapse on a long-term follow-up. Prospective studies with
a larger sample size and a long-term follow-up are required
to validate the findings of this study.
Compliance with Ethical Standards
Conflict of interest The authors declare that they have no competing
interests.
Ethics Statement The study design was approved by the institutional
ethical committee.
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