The so-called bruxism refers to the habitual grinding of teeth during sleep or daytime unconscious grinding habits, a little aggravated over time, is a long-term vicious cycle of disease, generally divided into 3 types: 1, grinding type: often after falling asleep at night grinding teeth, that is, it is often referred to as nocturnal grinding, sleep patients do grinding or clenching of the teeth action, due to the grinding of teeth is often accompanied by the sound of ” creaking”, usually also called “clenching teeth”. Because the grinding of the teeth is often accompanied by the sound of “creaking”, usually also called “clenching teeth”. And because it occurs in the night sleep, also called night grinding teeth, the patient himself does not know, often for others to tell, because it affects others, especially the spouse, and more attention. 2. clenching type: there is often unconsciously clenching the teeth during the daytime when the attention is focused, but there is no phenomenon of upper and lower teeth grinding. 3. Mixed type: The phenomenon of both nocturnal teeth grinding and daytime teeth clenching. Due to night grinding, the teeth are strongly knocked together, and there is no food to ease the teeth, resulting in excessive wear and tear of the protective substances on the surface of the teeth, exposing the dentin underneath the protective substances. In some cases, the teeth are allergic to cold, hot, sour, sweet and other stimulating foods; in some cases, it can lead to frequent bleeding, inflammation, loosening of teeth and even loss of teeth. In addition, long-term nocturnal teeth grinding can also lead to a series of complications. For example: long-term teeth grinding leads to chewing muscles can not get rest, resulting in chewing muscle fatigue and pain, cheek pain; serious cases of headache, neck and back pain; will also lead to decreased sleep quality, memory loss, cause bad breath or bad taste, damage to hearing and sense of taste, leading to psychological depression and pessimism or even have a light life and other terrible consequences. Night grinders will affect the sleep of others, the harm of teeth grinding is as follows: 1, so that the extensive loss of dental tissues, tooth shape damage, sharp edges, often stabbing lips, cheeks, tongue soft tissues; 2, the face of the lower 1/3 becomes shorter, the face of the old, affecting the patient’s facial aesthetics and pronunciation; 3, the dental bed is often bleeding, inflammation, resulting in tooth looseness and fall off; 4, tooth abrasion leads to allergies in the case of hot and cold sore pain, tooth softness, Gum recession; 5, cheeks and side ear area pain, damage to hearing; 6, head and neck muscle pain and stiffness, resulting in recurrent headaches; 7, resulting in biting through the cheeks, biting the bed of the teeth, biting cracked teeth, biting off the tongue; 8, affecting the development of young people’s body localization and mental health; 9, teeth grinding squeak affecting the rest of loved ones; 10, sleep quality, memory loss, triggered by halitosis or bad taste of mouth 11, mental tension, anxiety, worry. Treatment with teeth grinding pads: sleep with anti-grinding pads is the least damaging, the most effective way to treat night grinding, wearing teeth matching the bite of the teeth grinding sets, not only can effectively prevent the continued abrasion, the noise harassment of the people on the pillow will also be reduced. However, before the use of teeth grinding sets, patients must pay extra attention to oral hygiene, first receive scaling, dealing with tooth decay or periodontal disease, and then regular dental checkups, as well as brushing and flossing every night before wearing teeth grinding pads to clean the mouth.