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The effect of disclusion time reduction on maximal clench muscle activity levels
Robert B Kerstein1, John Radke
1Department of Restorative Dentistry, Tufts University School of Dental Medicine, USA. tmjdoc@ix.netcom.com
Abstract:
Simultaneous recording of excursive function and muscle activity on 62 MPDS patients demonstrated that reducing prolonged disclusion time (1.4 seconds per excursion) to short disclusion time (0.41 seconds per excursion) created a therapeutic effect such that within one month's time following treatment, there was an observed increase in the maximal clenching capacity of the masseter and temporalis muscles. This clinical treatment effect appears to be the result of decreased ischemia in these same muscles resultant from minimizing the time posterior teeth compress their periodontal ligament mechanoreceptors as these teeth are engaged and disengaged during excursive function.
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