Necrosis of the dental nerve is not possible regardless, and it is important to know what exactly the nerve is necrotic because of, whether it is due to trauma or inflammation. If the nerve necrosis is caused by trauma and shock, the risk is relatively small, but the corresponding teeth may not be dealt with, and there may be a gradual partial loss of teeth. However, if the nerve necrosis is caused by infection, if it is left untreated, it will only lead to further aggravation of the infection causing apical inflammation and even osteomyelitis of the jaw bone, which may cause a series of problems. Therefore, once the nerve necrosis occurs, the vast majority of the body has sounded a certain alarm symptoms of endodontitis, then we must go to a professional oral health care institutions to be symptomatic root canal treatment, and then by the doctor to give a systematic treatment plan.