the tweed profile - The Charles H. Tweed International Foundation

TREATMENT RESULT
The patient was treated for 28 months. Teeth are well-aligned
and there is good arch form. Also, the periodontitis has been
controlled. In addition, the prosthesis for the mandibular left
first molar has been made. The canines and the molars have
an Angle’s Class I occlusion. The third molars have been
extracted. The curve of Spee has been eliminated. Lastly, the
root paralleling has been corrected.
provided the controlled force. The Z angle was improved.
Now, her straightened profile allows her to close her mouth
comfortably.
In the cephalometric analysis, the FMA changed from 32°
to 30°. The mandibular plane angle slightly decreased. The
IMPA changed from 101° to 97°. The ANB remained at 7°,
because she is an adult. The Z angle improved from 56° to
68°. She has a good profile although the mandibular incisor’s
inclination did not change much. The total chin increased
from 9 to 11.
By wearing a headgear, her maxillary incisors moved both
superiorly and posteriorly. And, the mandibular incisors
became intruded and uprightened. In short, the headgear
CONCLUSION
Class II correction methodology must allow the
counterclockwise rotation of the mandible via a force system
that maximizes skeletal change during the adolescent period.
Fortunately, such efficacy is not limited to the adolescent
period. Even with an adult patient who has a severe bialveolar
protrusive Class II malocclusion, a surprising esthetic
change can be achieved with a proper directional force
system. Of course, in treating severe bialveolar protrusion,
there are various treatment methods other than application of
headgears, such as micro-implant anchorage, orthognathic
surgery, etc. However, regardless of the method chosen,
the basic concept of the use of a directional force system is
strongly recommended.
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