Water: Drinking proper amount of water can keep gums moist and stimulate saliva secretion. Drink water after eating, and take away the food residue in the residual mouth, so as not to let the bacteria get nutrition, take the opportunity to make trouble and damage the teeth. Peppermint: Peppermint leaves contain monoterpenoids, which can reach the lungs through blood circulation and feel fresh when breathing. Sugar-free chewing gum: it can increase saliva secretion, neutralize the acidity in the mouth and further prevent tooth decay. Cheese: calcium and phosphate can balance the pH value in the mouth and prevent the mouth from being in an acidic environment conducive to bacterial activities, leading to tooth decay; Regular consumption can increase the quality of calcium (calcium food) on the surface of teeth, help strengthen and rebuild enamel, and make teeth stronger. Guava/Banana: Tropical fruit (fruit food) contains high-dimensional C to maintain gum health. If it is seriously lacking, the gums will become fragile and prone to illness, resulting in symptoms such as swollen gums, bleeding, loose teeth or falling off. Celery: Crude fiber is like a broom, which sweeps away some food residue from teeth. In addition, the harder you chew, the more you can stimulate saliva secretion, balance the pH in the mouth, and achieve natural antibacterial effect. ?