The basic objectives of orthodontics and
orthognathic surgery are to meet patient' complaints, establish optimal
functional outcomes, and promote good esthetic results. To achieve this, the
orthodontist and the surgeon must be able to correctly diagnose dental and
skeletal deformities and establish an appropriate treatment plan for that
patient. Class III malocclusion is a difficult anomaly to understand.
There are three main treatment options for
skeletal Class III malocclusion: growth modification, dentoalveolar
compensation, and orthognathic surgery. Growth modification should be initiated
before the pubertal growth spurt; afterwards, only two options are possible.
Thus, treatment of skeletal Class III malocclusion in an adult requires
orthognathic surgery combined with conventional orthodontic treatment aiming to
improve self-esteem and achieve normal occlusion and improvement of facial
esthetics.
Surgical treatment of Class III malocclusion
includes, in most cases, mandibular retrusion, maxillary protrusion, or a
combination of both. Mandibular clockwise rotation can also provide the same
result as mandibular retrusion, when increase of lower anterior face height is
allowed. Although the problem appeared to be a protruded mandible, the
orthognathic surgery included a counterclockwise rotation of the mandibular
occlusal plane with advancement of pogonion, segmentation of the maxilla with
advancement and expansion, and surgical protrusion of the chin. The pros and
cons of these procedures are discussed.
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Email : eu@eudental.co.kr
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