for children from 6 to 10 years with a developing malocclusion
Myofunctional Training and
There are 3 components
to a malocclusion:
MYOFUNCTIONAL (as described by Angle) and
Most orthodontic techniques
treat only the dental component. Some treat Tooth and Jaw. The Myofunctional
component is most often ignored. This can slow treatment and be the cause
of relapse. The Pre-Orthodontic TRAINER¨ allows treatment of the 3 components
of a malocclusion.
TRAINER¨ is a Combined Functional and Tooth Guidance Appliance developed
from the need for a more comprehensive early treatment.
In many Orthodontic
cases, tongue position and incorrect swallow is a major cause. The Trainer
has a tongue tag for proprioceptive location of the tongue tip into its
correct resting position. The child learns where this position is with
the Trainer in place and this acts as a "reminder" where this "spot" is.
The Tongue guard
prevents a tongue thrust swallow when in place, which is a position "training"
process for the tongue.
Lip bumpers or
Mentalis stretchers are incorporated to stretch and deactivate overactive
mentalis contraction, associated with a tongue thrust swallow.
Lip bumpers have been shown to gain arch length in mild to moderately
Assistance to the
Orthodontist can be given for future orthodontic treatment with pre-treatment
using the Trainer, in closing open bites and opening deep bites, simply
by removing the detrimental effect of the tongue and the peri-oral musculature
on the anterior dentition, prior to regular orthodontic treatment.
In Europe, the concept
of early treatment of orthodontic problems in the growing child has persisted
for the majority of the century. The functional appliance is used for
redirection of growth and, combined with arch expansion, has been a popular
choice for many common malocclusions. More widespread adoption of these
techniques, particularly in North America has been limited by the inherent
disadvantages and criticism of so called functional appliances.
The advantages of
functional appliances are early treatment of malocclusion, orthopaedic
effects on the bone allowing for the correction of skeletal malocclusions
not possible with dentally fixed appliances.
are lack of ability to align the teeth, plus complex and expensive construction.
The more the appliances are developed to improve their performance, the
more prone they are to breakage and poor compliance. Furthermore, despite
their name, few functional appliances do not have significant effects
on the soft tissue. ie; correction of tongue thrusting, reverse swallowing,
oral habits and mouth breathing, all of which have been shown to greatly
influence growth and dental alignment.1,
Furthermore, many functional appliances discourage correct tongue position
and function tending to produce the effects demonstrated by the Harvold
experiments of the 1960's on primates.
More recently there
has been a trend to combine a two phase system to obtain the best of functional
and fixed appliance treatments, recognising the shortcomings of both systems
From this need the
pre-Orthodontic TRAINER¨ was developed as a definitive early treatment
for the child 6-11 years - the ages when traditionally functional appliances
work best. The intention was to produce an easy to use prefabricated device
with the orthopaedic effects of a functional appliance, combined with
a tooth guidance system, plus an unique myofunctional training feature.
The product does not require manufacture in the laboratory and is made
in a universal size for all children 6-11 years (mixed dentition stage),
allowing orthodontic treatment to be implemented earlier and at lower
cost. The application of a tooth guidance into a functional appliance
overcomes one of the major disadvantages of other functional appliances.