Project: Research project

Project Details


Nocturnal bruxism has been implicated as an etiological factor in tooth
wear, masticatory muscle pain, TM conditions and certain headaches.
Research progress in this important clinical area has been difficult
because of the expense of sloop laboratory studies and the limited data
which can be obtained using ambulatory recorders in the patients homes.
Additional research avenues are necessary. The purpose of this research
is to test the feasibility to developing a laboratory model using awake
humans to study nocturnal bruxism. The first step and the specific aim of
this proposal is to determine if awake subjects can voluntarily perform
muscular contraction patterns characteristic of nocturnal bruxism and, if
so, to provide a descriptive account of the nature of this behavior. Electromyographic patterns of bruxism activities will be recorded from
the jaw muscles in ten chronic bruxist subjects in a sleep laboratory for
two night each. Upon waking. subjects will attempt to model the
amplitude. duration and lateral patterning of the nocturnal
electromyographic activity. This modeling will be facilitate by visual
EMB biofeedback from the jaw muscles. In addition, subjects will be given
verbal reinforcement for successive approximations of the target
behavior. The long-rang goal is to develop laboratory model to study the
biomechanics and pathophysiology of muscular and joint conditions which
are related to nocturnal bruxism. Ultimately, the goal is to provide
knowledge necessary for the understanding and clinical management of
nocturnal bruxism and related oral conditions.
Effective start/end date7/1/896/30/90


  • National Institutes of Health


  • Medicine(all)
  • Dentistry(all)


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