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Class II division 2 malocclusion profile, is typical, due to it’s
specific caratheristics which cannot be ignored in therapy planning. The
aim of this paper was to define the role of lips and chin soft tissue on
profile of patients with this malocclusion. The evaluation included 48
lateral roentgenograms (23 male, 25 female) and analysis of angular
measurements: SNA, SNB, ANB, SNPg, G-SN-PG and Holdaway angle and linear
measurements – upper lip and chin soft tissue thickness. As we expected,
facial form is convex. Upper lip and chin soft tissue thickness partialy
compensate dentoalveolar and jaw retrognatism at both sexes, and reduce
significant concave profile in lower third of the face. It is
interesting that, according to detented standards, male’s profile is
more symetrical than females, although, because of the broad field of
variations of Holdaway angle, results should be taken with cautions. We
should, also, have in mind that faces that rigidly follow average
sceletal and dental measurements are not always realy harmonious and
balanced.
Key words: class II division 2
malocclusion, soft tissue, cephalometric
analysis
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