Bruxism is a case in which patients involuntary grind or clench their teeth due to chewing muscle contraction. This is a fairly common disease that occurs in both children and adults, affected about 8% of the population. This phenomenon usually occurs when sleeping and sometimes even while awake. Dr. Franxois Unger (France) said that a person who has bruxism can grind his/her teeth continuously for 6-8 minutes at night when sleeping and 5-6 times in an hour.
Teeth grinding, medically called bruxism, stem form stress or anxiety that affects people subconsciously while they are sleep.
Nightguard is a tool for each individual patient to gently cover the upper teeth. It is removable and usually made of rigid acrylic. Nightguard helps relieve pain and fatigue, balances the chewing system and helps the protect teeth.
According to Dr. Vo Van Nhan: bruxism is a phenomenon in which the patient clenches their teeth often and generate grinding sound. Causes of bruxism are due to the bite joint (between upper and lower jaw) dysfunction; Anxiety or stress; agitated or excessive emotions; Side effects of some neurological drugs such as antidepressants; etc.