Bruxism during the day. The ICDS-R defined sleep bruxism as "a stereotyped movement disorder characterized by grinding or clenching of the teeth during sleep", classifying it as a parasomnia. The second edition (ICSD-2) however reclassified bruxism to a "sleep related movement disorder" rather than a parasomnia. Alternatively, bruxism can be divided into "primary bruxism" (also termed "idiopathic bruxism"), where the disorder is not related to any other medical condition, or "secondary bruxism", where the disorder is associated with other medical conditions. Secondary bruxism includes iatrogenic causes, such as the side effect of prescribed medications. Another source divides the causes of bruxism
The Grinding Wheel The Grinding Wheel The Grinding Wheel is the 18th studio album by American thrash metal band Overkill, released on February 10, 2017. It is the last Overkill album with drummer Ron Lipnicki, who left the band shortly after its release and was replaced by Jason Bittner (formerly of Shadows Fall and Flotsam and Jetsam) for the album's tour and its follow-up "The Wings of War" (2019). Vocalist Bobby "Blitz" Ellsworth said about the album's style: "At the end of the day Overkill is Overkill. Our trademark is that we are always recognizable on every release. For the three decades we