As the saying goes: “Toothache is not a disease, but a pain that kills you”. It is the most common symptom in elderly patients with oral diseases. The causes of toothache are various, generally speaking, toothache comes from two aspects, one is the disease of the tooth itself, and the other is caused by the disease of the tissues around the tooth. In the early stage of tooth decay, when the tooth tissue is damaged, the pulp will be stimulated by cold, heat, acid, sweet or food residue entering the cavity, and the dental symptom of pulp stimulation will appear; in the middle stage of tooth decay, the pulp will be filled with blood and the pressure will increase, and the nerve will be compressed, and the nature of toothache will become paroxysmal pain and severe pain, which is often called ” If the inflammation continues to develop, the pain will not only be persistent, but also accompanied by floating of the affected tooth, and even biting the tooth will be painful, which is often called “periapical inflammation”. When encounter the above situation, should take the following methods to stop the pain, can pick the cavity with toothpick and then put the small cotton ball dipped in toothache water or ten drops of water into the cavity, and can take pain relief tablets orally, finger pressure “hegu” position (in the house between the thumb and index finger), all have the effect of temporary pain relief. Early caries can be cured by one filling. For the middle stage caries, the tooth can be filled only after the pulp treatment (commonly known as “nerve killing”). For advanced caries, i.e., the root is seriously infected, the tooth can be repaired only after complicated canal treatment, and if the crown is decayed into residual crown or residual root, the tooth will be extracted. Periodontal disease is a common disease of the tissues around the teeth. As the name implies, periodontal disease means periodontal tissue disease, in acute periodontitis, the gums are red, swollen and pus filled. When periodontitis is granted, the periodontal redness and swelling is easy to bleed: loose teeth, loose teeth to be extracted in serious cases, so you should go to the hospital for treatment, tartar is the scourge of periodontitis, so you should usually pay attention to the morning and evening brush, rinse after meals, to maintain oral hygiene. In addition, the upper collar sinusitis, temporomandibular joint disease, external ear inflammation, refractive abnormalities, trigeminal neuralgia, arteriosclerosis, tumors, coronary heart disease and other conditions, can also induce toothache, therefore, when the elderly toothache;・・should promptly go to the hospital for examination, symptomatic treatment.