Occlusal trauma does not heal on its own. Occlusal trauma is an indication that a tooth has an early contact cusp, a tooth has a high spot in the filling after caries filling treatment, or there is an occlusal high spot on a porcelain crown after the tooth has been set with a porcelain crown, all of which can cause occlusal trauma. Occlusal trauma can make individual teeth bite too hard, resulting in periodontal damage, the most important symptom is that when biting the object when the teeth will appear pain, if the occlusal trauma is not lifted in time, the teeth will gradually develop into periapical periodontitis, endodontitis, tooth loosening and a series of phenomena. Teeth with occlusal trauma should go to the hospital for adjusting and grinding, adjusting and grinding off the tip of the early contact, so that the filling material and porcelain crowns to achieve uniform and stable occlusal contact, when lifted out of the occlusal trauma, if the tooth’s pulp and the root of the tooth does not have any other problems, the tooth’s pain will gradually disappear, and if there has been a symptom of endodontic inflammation, to do root canal treatment.