PHYSIOGARD NIGHTGUARD is a simple to use bite guard that does not require specialist fitting and used at night or during the day can significantly improve the symptoms associated with bruxism or teeth grinding.Teeth grinding and jaw clenching especially at night are often symptoms associated with stress. Known as Nocturnal Bruxism, it often results in chronic headaches, face pain, jaw pain and clicking jaw joints as well as damage to teeth and enamel.Using PHYSIOGARD NIGHTGUARD at night or during the day can significantly improve the symptoms associated with bruxism.