September 20, 2013 is the 25th National Dental Care Day, and the theme of this year’s event is “Healthy Mouth, Happy Family – Caring for the Elderly, Restoring Lost Teeth”. Oral health should include clean teeth, no cavities, no pain, normal gum color and no bleeding. Regular oral examination, early detection and treatment of oral diseases. 1, every six months or a year for an oral examination, there is disease early treatment, no disease early prevention. Regular cleaning (commonly known as scaling) to prevent the occurrence and progress of periodontal diseases. 2, when the tooth appears to be hot and cold, sweet and sour stimulation pain, should be promptly to the regular oral health care institutions for examination and treatment, do not delay until the pain is unbearable before treatment. 3, when the following symptoms appear, suggest that suffering from periodontal disease, need timely treatment. (1) Soft tartar and tartar accumulation on the tooth surface. (2) Gums are red, swollen and loose, and gums bleed easily when brushing or biting (blood on toothbrush bristles or food). (3) The teeth have different degrees of looseness, exposed roots, and weakness in biting. (4) There is pus overflow when light pressure is applied to the red and swollen gums, and bad breath. (4) Preserve every tooth that can be treated and do not extract it easily. Develop good oral hygiene habits and lifestyle to maintain overall oral health. 1, you should brush your teeth every morning and evening, it is important to brush your teeth in the evening, and it is worth advocating to brush your teeth after every meal. Brush your teeth with fluoride toothpaste and health care toothbrush to continuously remove plaque, maintain periodontal health and prevent dental caries from occurring. Adopt the correct brushing method and avoid pull-saw horizontal brushing to prevent cervical wedge defect of teeth. 2.It is best to clean the adjacent surface of teeth once a day with dental floss; for those who have wide gaps between teeth, it is recommended to use gap brush. 3, advocate the use of mouthwash. Brushing mainly cleans the soft scale and plaque on the tooth surface, and does not play a sufficient role in cleaning the other parts of the mouth, which are also the causes of oral diseases. Appropriate use of mouthwash on the overall cleaning of the oral cavity has a certain role. 4, should clean the denture after meals, before going to bed to remove the removable denture in the mouth, and soak in water or denture cleaning solution. 5, quit smoking and drink less alcohol. 6.Balanced meals. 7.Drink more water to prevent dry mouth.