Bruxism refers to the non-physiological clenching and grinding of the teeth, due to repetitive masticatory muscle activity. A distinction is made between sleep and awake bruxism [1]. Waking bruxism occurs with a prevalence of 22-31% and sleep bruxism with 9-15%. The prevalence peaks in the 2nd -3rd decade of life [2]. Differences between the sexes have not yet been clearly clarified [3-5].
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