OCCLUSION
are reported Winstanley in 1986, Saito in 1990, McHorris
in 1985 and many others. Conversely, according to Koh
and Robinson (2003, 2004) clear evidence that occlusal
adjustment treats or prevents temporomandibular
disorders is lacking. Therefore there is a need for well
designed controlled studies to analyze the current clinical
practices and effectiveness. Occlusal equilibration is not
an easy treatment because if it is not correctly conceived
and performed, it will be more injurious than if it were not
done. That is why there are some rules on how to carry it into
practice:
1. The precise diagnosis and localization of occlusal
interferences.
2. The identification of abrasion facetes on the dental cusps.
3. The verification on the casts mounted on semiadjustable
articulators the occlusal interferences points registered in the
patient’s mouth.
4. A correct occlusal equilibration cannot be finalized during
only one treatment seance.
5. Wrong centric relation position of the mandible
compromisesocclusalequilibrationbyocclusaladjustments.
6.The true centric relation of the mandible must be achieved
having the mandibular condyles placed in their highest
position in glenoide fosses, without occlusal teeth contacts
7. Real centric relation is not obtained by “forced guidance”
of the mandible but through mandibular muscles
relaxation.
Centric relation is a fibroligamentous
connection between temporal glenoid fosse and
mandibular condyles.
8. Occlusal equilibration outside the centric relation
position of the mandible brings about occlusal
dysfunction.
The iatrogenic errors during occlusal equilibration have
different reasons: the wrong initial diagnosis, a wrong
premise or indication of occlusal adjustment, the dentist’s
insufficient training in the field of occlusal adjustments
and reduction of occlusal vertical dimension.
Conclusions
The masticatory system is a unitary functional
biomechanical
complex.
Therefore,
the
homogenous
functional
dentoperiodontal
impulses are highly significant with respect
to the development and maintenance of
dentoperiodontal, temporomandibular joints
and masticatory muscles in soundness functional
capacity and resistance.
Occlusal adjustment techniques offer a direct
and easy opportunity in order to reach the
equilibrium of occlusal interrelations, thanks to
the perception of the homogenous functional
stimuli. In this way, the occlusal surfaces of the
teeth are liable to a uniform, smooth physiological
abrasion process.
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