1. Banana. Bananas contain a lot of vitamin C, which can effectively maintain the health of gums, and also prevent gum bleeding, gum swelling, tooth loosening and so on.
2. apples. Apple contains high water, which can improve saliva excretion, reduce bad breath and alleviate bacterial population of dental plaque. Eating some apples after meals can prevent gingival hematoma and atrophy caused by dental calculus and reduce the body's digestion and absorption of sugar.
3. Yogurt. Protein in yogurt can be attached to front teeth, which can protect teeth from acid damage and improve oral health after eating.
4. Green tea. Green tea contains a lot of fluorine, which combines with apatite in teeth and has the function of acid resistance and moth prevention.
Bad teeth can usually be improved by ultrasonic tooth cleaning. Ultrasonic tooth cleaning mainly removes dental plaque or calculus on the tooth surface through vibration frequency, and can also maintain oral health. In addition, oral hygiene care should also be done at ordinary times.