Most children with crowded teeth
and bad bites have narrow jaws and underdeveloped
lower jaws, which could be corrected with functional
appliances. Functional appliances help correct the
bone problems, while the tooth problems are
corrected with the orthodontic braces.
Posterior Crossbite Right
4 Years Later
The ideal age for the use of
functional appliances is between ages seven and
eleven, when the cooperation level is the highest.
However, functional appliances can be utilized as
early as age 4, if the upper jaw is too narrow and
is having a negative effect on the child's breathing
and speech. Arch Development (functional appliances)
can also be used in adults to develop the arch to a
more normal shape and size before applying the
The use of functional appliances
can reduce the time the child must wear fixed braces
and also can reduce the need for the extraction of
permanent teeth. Functional appliances develop the
dental arches so that all the permanent teeth can
erupt, which ensures an outstanding profile, broad
smile and healthy jaw joints.