Bruxism of progression of pre-existing periodontal disease (gum disease), however the main stay treatment is plaque control rather than elaborate occlusal adjustments. It is also generally accepted that periodontal disease is a far more common cause of tooth mobility and pathological tooth migration than any influence of bruxism, although bruxism may much less commonly be involved in both. Most people with bruxism will experience no pain. The presence or degree of pain does not necessarily correlate with the severity of grinding or clenching. The pain in the muscles of mastication caused by bruxism can be likened to muscle pain after exercise.
Involuntary narrative same object, media or technology are perceived as a continuum. When a purposeful overlap of the physical and the virtual takes place, it could be called vireal (Gramelsberger, Klein). The involuntary narrative, hypnagogia and the Dreamachine, trigger what is already in the individual by referring to his or her own past history. The involuntary narrative is accidental and in that differs from both the hypnagogic state and the state induced by the Dreamachine. Auditive and visual signals, as for example mobile phone ringtones, virtual identity thumbnails, alert sounds, signals and information screens in public transport, adverts displayed in LED screens,