Many people grind their teeth at night in their sleep, unbeknownst to themselves but deeply affecting those around them. Some people may feel that the whole mouth is tired when they get up the next day and do not want to open their mouth, which may be manifested by grinding teeth at night. Just why are more and more patients with teeth grinding appearing in the clinic? Next, the secret of adult teeth grinding is revealed for you. Oral physiology and psychology that the mouth is the body’s first source of excitement, is the channel of communication with the outside world, and the mouth has the function of indicating tension, pessimism and other emotions. Today’s pace of life is accelerating, competition is becoming more and more intense, everyone tries to dispel all kinds of stress in life or work, one of the effective methods is physical exercise and mental diversion, and some people are manifested as grinding teeth. The pathogenesis of adult teeth grinding is more complex than that of children and adolescents, and its dangers should not be underestimated as well. Among them, teeth grinding caused by mental factors has received particular attention from scholars. Experts have made a control study of 80 patients aged 16 to 45 years old and 80 people without teeth grinding, for them to do Eysenck personality measurement, the results show that: introversion, depression, especially emotional instability, easy to stress and other personality is an important factor in the development of teeth grinding. Many scholars have found in their studies that oral diseases do not appear to be important in the development of teeth grinding disorder, and psychological factors often take the primary position. They believe that teeth grinding occurs in dreams or during sleep when the person is escaping from subconscious psychological stress. Many scholars have observed that teeth grinding is a manifestation of psychological frustration and an evidence that patients must see a psychologist. Analyzed from a psychiatric point of view, teeth grinding represents a psychological condition that appears more prominent especially in times of anger, anxiety, resentment, and pessimism. The psychological condition expressed subconsciously by these individuals is one of frustration and dissatisfaction. The findings and analyses of many scholars have also shown that pessimism is more severe in people who grind their teeth than in people who do not grind their teeth. It is also believed that adult teeth grinding is a feature of mental fatigue and that attention should be paid to resting and adjusting one’s state of mind. However, adult teeth grinding is not taken seriously, and the reason for this is related to people’s misconceptions about adult teeth grinding disorder. Someone once did a survey, in 40 patients with different degrees of teeth grinding and 60 patients’ families, there are 62.3% of people think that teeth grinding disease do not need to see a doctor, they think grinding teeth is nothing, why so much fuss. You can’t make a fuss about teeth grinding is actually extremely harmful. 1, when grinding teeth, the upper and lower teeth wear each other, once the tooth surface enamel is excessively worn, will make the dentin exposed, to cold, hot, acid, sweet and other chemical stimuli or hard objects and other physical stimuli appear allergic, causing soreness. In serious cases, pulpitis, occlusal trauma, periodontal tissue damage, temporomandibular joint damage, chewing muscle damage, etc. may even occur. 2, people who have the habit of grinding their teeth at night usually also feel facial muscle soreness and pain when they wake up early the next morning, restricted mouth opening, popping and pain in the temporomandibular joint in front of the ear when opening and closing the mouth, and discomfort of hidden swelling of the teeth, which is because the patient’s mouth is in motion all night, increasing the load on the perioral muscles, temporomandibular joint and teeth. For the treatment of bruxism, dentists may recommend the use of bruxism pads. The clinically commonly used cushion is a soft and hard polymer resin material, which is pressed and pressed at high temperature and formed in one go, with a thickness of only about 2 mm, ensuring the strength of the cushion, but also the advantages of the soft cushion, which can maintain the normal occlusal relationship and make the occlusal surface evenly distributed, and will also feel more comfortable when used. The mechanism of action of the grinding pad: by mechanically isolating the direct contact between the upper and lower teeth, redistributing the dental force and buffering the pressure of chewing collision, in order to prevent tooth grinding and avoid the continued damage to the dental and periodontal tissues.