Tooth grinding can have a greater impact on the teeth and is abnormal wear, which can lead to more severe wear and shorter crowns, some of which are only 1/2 of the normal crown length, making it easier to develop dentin hypersensitivity, pulpitis, periapical inflammation and tooth fracture. Due to the impact of teeth grinding on periodontal tissues, the periodontal tissues are subjected to abnormal joint force, causing joint trauma, and in some cases, loosening of teeth and food embedment, and may also cause disorders of the temporomandibular joint, resulting in pain or fatigue of local chewing muscles, restricted movement of the jaw, and popping of the temporomandibular joint. Therefore, the emergence of teeth grinding disorder has a relatively large impact and should be treated as soon as possible.