92
BTS
Biomedical
BTS
TMJOINT
guide to the report data reading
Provides an estimate of the occlusal barycenter position.
It is very useful for an immediate interpretation of the biomechanics
levers induced by the contact of the teeth.
When the contact points tend to focus on the molars, the masseters
record a greater contraction than the corresponding temporalis and so
the index takes a positive value.
In the occlusal condition in which the barycenter moves in the anterior-
lateral areas, that means until the first-second premolar, the temporalis
express greater contraction forces and the index becomes negative.
Normally this index is always positive except in the second
skeletal class in which the index is usually negative.
For the resolution of TMJ (temporomandibular joint) acute pain
problems it must be find a condition biomechanically favorable
to the discharge of the forces burden on the TMJ that leads to a
positivization of this index.
• TORQUE: mandibular torque
It’s a parameter similar to the TORS, but compared to zero, instead of
100%.
The resultant force of the action of the temporalis muscle, added to the
resultant force of the controlateral masseter, generates a force couple. The
moment of this couple tends to laterodeviate the jaw in the direction
of the resultant of the anterior temporal: if the right is greater, the
torque values will be negative; while it will be positive it the left TA is
predominant.
• POCm : medium percentage overlapping coefficient
It is simply the medium between the TA POC and the MM POC. It
Содержание TMJOINT
Страница 1: ...version 3 0 0 user manual english BTS TMJOINT ...
Страница 2: ...Document Number ERTMJ 00998 04 Published January 2013 Copyright 2010 2013 BTS SpA All Rights Reserved ...
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