Orthognathic surgery aims not only at aesthetic
improvement but also at functional enhancement,
requiring detailed planning that involves orthodontic
diagnosis and advanced radiographic examinations.
Regarding the principles that guide this surgery, analyze
the following statements:
I.In patients with mandibular retrognathia, mandibular
advancement performed during orthognathic surgery can
improve not only occlusion but also the patency of the
upper airways, helping in the treatment of obstructive
sleep apnea.
II.The use of computed tomography and
three-dimensional digital planning is crucial for the
accuracy of bone cuts and for predicting final results in
orthognathic surgery, being the preferred method for
detailed predictions of postoperative occlusion and facial
profile.
III.After orthognathic surgery, the use of fixation devices
such as plates and screws is always temporary, and they
must be removed after complete bone healing to avoid
complications.
Select the correct alternative: