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| 8. |
What kinds of orthodontic
appliances are typically used to correct jaw-growth problems? |
The process of dentofacial orthopedics allows Dr. Hendrix to correct
jaw growth problems. This is often referred to as growth modification.
The decision about which appliance to use for jaw growth modification
is based on the individual problem. Usually, one of several appliances
can be used effectively to treat a given problem. For the majority
of appliances, patient cooperation is the critical element in determining
the success of dentofacial orthopedic treatment. If your child would
benefit from this kind of treatment, Dr. Hendrix will be happy to
discuss with you which option is best for your child.
Some of the more common orthopedic appliances used by orthodontists
today that help the upper and lower jaws become more compatible include:
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Palatal
Expansion Appliance:
A child's upper jaw may be too narrow
for the upper teeth to fit properly with the lower teeth, creating
a crossbite. When this occurs, a palatal expansion appliance
can be placed on the upper back teeth. This appliance can markedly
expand the width of the upper jaw to make a broader, more attractive
smile. |
Activators: These removable appliances
hold the lower jaw in a forward position to guide tooth eruption into
a more desirable bite while helping the upper and lower jaws grow
in proportion with each other. Patient cooperation in wearing this
appliance is essential for successful improvement. There are many
removable appliances used by contemporary orthodontists to treat underdeveloped
lower jaws. They include the Twin-Block, Bionator, and Frankel, to
name a few.
 Herbst
Appliance: For patients who have an underdeveloped lower jaw,
it is important to begin orthodontic treatment several years before
the lower jaw finishes growth. One method of attempting to correct
an underdeveloped lower jaw uses an orthopedic appliance to reposition
the lower jaw. Like activators, the Herbst appliance influences the
jaw muscles to work in a way that may improve forward development
of the lower jaw. One potential benefit of the Herbst appliance is
that it is bonded to the teeth during treatment so patient compliance
is assured.
Headgear: This appliance has been
used for years in respected specialty orthodontic offices across the
country. Headgear applies selective pressure to the upper teeth and
upper jaw to guide the rate and direction of upper jaw growth and
upper tooth eruption. The headgear may be removed by the patient and
is usually worn only at night.
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