The facial deformity caused by mandibular prognathism has long been
of great interest to the orthodontist. The deformity of the lower
jaw is readily expressed as a profile disfigurement, since the soft
tissues of the face depend on the lower jaw for much of their
contour. The dental literature is replete with various surgical
techniques for the correction of mandibular prognathism. The
consequences of surgery on facial appearance are of great
importance, Therefore an accurate prediction of the post-operative
facial profile comprises an essential and integral part of the
diagnostic and treatment planning procedures of the combined
surgical & orthodontic therapy. This book therefore aims to
describe the inter- relationships of the soft tissue and
dentoskeletal profiles after total mandibular setback osteotomies
and to detect whether there were any cephalometric variables that
could contribute to an accurate prediction of the surgical effect
on the soft tissue profile. BSSO, mandibular set back was done.
Results showed that the facial concavity, to the relationship of
the hard and soft tissue chin to the upper face, was decreased,
facial esthetics was improved.
General
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