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Etymology: ME, clenchen
the clamping and pressing of the jaws and teeth together in centric occlusion, frequently associated with acute nervous tension or physical effort, such as pushing or lifting a heavy object or performing a difficult task. See also bruxism.


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.


Nonfunctional tooth clamping in centric occlusion.

clenching (klen´ching),

n the nonfunctional, forceful intermittent application of the mandibular teeth against the maxillary teeth. It can become habitual and cause damage to the periodontium.
References in periodicals archive ?
Getting a Grip on Memory: Unilateral Hand Clenching Alters Episodic Recall.
During teeth clenching, measurements were recorded at 5-second increments over the same 30-second period.
Grinding and clenching can be caused by stress or anxiety, but they are also key characteristics of a temporomandibular joint disorder, which is more commonly known as TMJ," said Dr.
Occlusion Therapy can reduce and even eliminate teeth clenching to help relax the jaw and prevent pain.
Researchers at the University of Munich in Germany, which is also the home of penalty shoot out masters, found that by clenching their left fist or squeezing a ball an athlete activates the right hemisphere of the brain, which is linked to automatic motor actions rather than thought.
Former South African first lady Winnie Madikizela-Mandela left court clenching her fist as she was released on bail pending an appeal.
BOSTON -- More than 3 million Americans suffer pain every day from teeth grinding and clenching (bruxism), and the recent worries about the election and the economy seem to be exacerbating the problem.
Washington, September 20 ( ANI ): Researchers have suggested that some athletes, such as soccer players or golfers, may improve their performance under pressure by simply squeezing a ball or clenching their left hand before competition to activate certain parts of the brain.
com)-- After almost 2 years in development, a new app called Tongue Chi for TMJ Treatment offers hope of long-lasting relief from the painful symptoms of habit related TMJ (teeth clenching and grinding).
When sunlight is hard to come by, these cicadas warm themselves by clenching their flight muscles.
As he starts moving again, start clenching and releasing, then when the orgasm starts again get him to stop.
Wong was in the usually undesirable position of skating first among the 13 competitors, but he hit all of his jumps cleanly (including a triple-lutz, double-toe loop combination) and punctuated his performance by clenching his fists and shouting, ``Yes