The clinical manifestations of dental fluorosis are characterized by chalky to brown plaques on the enamel erupting at the same time and, in severe cases, are complicated by parenchymal defects of the enamel. It is often clinically classified into chalky (mild), stained (moderate) and defective (severe) types according to their mild, moderate and severe severity. First, what foods are good for the body to eat for periodontal disease: 1. Protein is the basis for the growth and development of oral tissues, and protein deficiency can aggravate the development of periodontal disease. Therefore, we should eat more high-protein foods, such as eggs, meat, cow’s milk, cheese, cereals, bean pods, dried fruits, etc. 2.Supplement rich high-protein diet. It can enhance the body’s resistance and anti-inflammatory ability, and provide the raw materials necessary for the repair of damaged tissues. Eat more protein-rich foods, such as soy products, eggs, milk, lean meat, fish and shrimp, etc. 3, supply a variety of vitamins. The actual fact is that you can find a lot of people who are not able to get the best out of your own home. 4, pay attention to the intake of minerals. In particular, the intake of calcium, phosphorus and zinc and their proportional relationship, zinc can resist infection and enhance healing. 5, vitamin A can prevent periodontal disease, strengthen the resistance of enamel, and make the epithelial cells of periodontal tissue more vigorous. Vitamin B1, B2, nicotinic acid is also a vitamin often needed in the prevention and treatment of periodontal disease. Vitamin C is related to the synthesis of collagen, as well as the function of dentin cells and osteoblasts, for the gum alveolar bone and periodontal membrane, all have an impact. 6, Chinese medicine believes that periodontitis is due to fire and kidney deficiency caused by the two, where the periodontal disease caused by fire, should quit thick taste, clear fire evil as the main, available mung bean soup, rehmannia soup. Not fried with oil, less thick nourishing and thick flavored food, more light food with fruits and vegetables. Any periodontal disease caused by kidney deficiency, should be the main kidney tonic. Available high-quality animal protein, more milk and shellfish and fresh red, yellow and green vegetables. Second, periodontal disease do not eat which food: 1, do not eat long-term large particles, coarse fiber food, because it can cause mechanical pressure on the diseased periodontal tissue stimulation, so that the local blood circulation is impaired, resulting in malnutrition of periodontal tissue, gingival atrophy, alveolar bone resorption aggravated. However, you should not eat too fine food for a long time. 2, eat less greasy, stimulating food. Deep-fried and fried greasy food as well as bad food, seafood, garlic, leeks, tobacco and alcohol and other stimulating foods should be eaten less, and less sugar and refined sugar, because sugar causes plaque formation and prevents white blood cells from destroying bacteria.