clenching(redirected from clench nailing)
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1. Forcible, repeated contraction of the jaw muscles with the teeth in contact. This causes pulsating, bilateral contractions of the temporalis and pterygomasseteric muscles. It may be done consciously, subconsciously while awake, or during sleep. See: bruxism
2. Tightly closing the fist.
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Nonfunctional tooth clamping in centric occlusion.
Medical Dictionary for the Dental Professions © Farlex 2012