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
United Grinding North America MIKROSA. Cylindrical grinding is a process that forms the outside of an object. Common applications are cylinders, an ellipse, a cam or crankshaft. STUDER manufactures internal and external cylindrical grinders for small and mid-sized workpieces. The brand consists of more than twenty different machines ranging from standard machines to complex system solutions for tool and die makers, the automotive and aerospace industry, pneumatics/hydraulics, electronics/electrical engineering, medical technology, the watch industry and job order production. SCHAUDT supplies solutions for cylindrical grinding, noncircular grinding and universal grinding between centers. Common applications are grinding camshafts, crankshafts or gear shafts in the automotive industry