Sleep Bruxism—The Controversial Sleep Movement Activity

Dear Colleagues,

According to the current approach, bruxism is considered as two different behaviours observed during sleep and wakefulness, respectively, and the single definition for bruxism has been replaced by two separate definitions:

1. Sleep bruxism is a masticatory muscle activity during sleep that is characterised as rhythmic (phasic) or non-rhythmic (tonic) and is not a movement disorder or a sleep disorder in otherwise healthy individuals.
2. Awake bruxism is a masticatory muscle activity during wakefulness that is characterised by repetitive or sustained tooth contact and/or by bracing or thrusting of the mandible and is not a movement disorder in otherwise healthy individuals.

Even though the etiopathogenesis of bruxism is not fully understood, many different factors are believed to be associated with this muscular activity. An increasing number of evidence suggests a relationship between bruxism and other disorders or systemic diseases, including sleep breathing disorders, uncontrolled limbs movements during sleep, reflux disease and neurological disorders.

This Special Issue aims to determine the nature of sleep bruxism and its types, as well as investigate the relationship between sleep bruxism and different general health diseases, conditions and disorders.

Dr. Mieszko Wieckiewicz
Dr. Efraim Winocur
Guest Editors

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