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Bruxism is excessive teeth grinding or jaw clenching. It is an oral parafunctional activity; [1] i.e., it is unrelated to normal function such as eating or talking. Bruxism is a common behavior; the global prevalence of bruxism (both sleep and awake) is 22.22%. [2]
It is often accompanied by unpleasant grinding sounds heard by the bed-partner or roommate. Symptoms include wearing of teeth, temporomandibular joint (TMJ) dysfunction or pain, chewing difficulties, headaches, and daytime sleepiness. [2] The prevalence of SB is estimated at 14–20% in children and 8% in adults [citation needed]. Diagnosis of ...
Whereas teeth rarely come into contact during normal chewing, grinding of teeth may occur 1-4 hours in a 24-hour period, most often during sleep. The amount of pressure placed on teeth during functional habits is 140–550 kilopascals (20–80 psi), but the pressure can range from 2–20.7 megapascals (290–3,000 psi) during parafunctional habits.
REM is the deepest stage of sleep, it is named for the host of neurological and physiological responses an individual can display during this period of the sleep cycle which are similar to being awake. [64] Between 15.29% and 38.6% of preschoolers grind their teeth at least one night a week.
Nightguards may also be implemented in the case of teeth grinding (bruxism) during sleep. These guards function in limiting the wear and force applied to the teeth. In turn, this minimizes the chance of loss. In countries such as the United States, Japan, Germany, and Italy, there is a strong relationship between cigarette smoking and tooth ...
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