Foods that help muscles and bones also helps teeth and gums making healthy. Foods like Breads and cereals rich in vitamin B while Fruits and Vegetables rich in vitamin C, both contributes to healthy gum tissue. The Lean meat, fish, and poultry provide magnesium and zinc which helps in making strong teeth.
Some foods may protect against cavities by naturally containing fluorine, from which fluoride is derived. Fluoride is naturally present in all water. Community water fluoridation is the addition of fluoride to adjust the natural fluoride concentration of a community’s water supply to the level recommended for optimal dental health.
Fluoride is a primary protector against dental cavities. Fluoride makes the surface of teeth more resistant to acids during the process of remineralisation. Drinking fluoridated water is recommended by some dental professionals while others say that using toothpaste alone is enough. Milk and cheese are also rich in calcium and phosphate, and may also encourage remineralisation.
All foods which increase saliva production are also been encouraged, Since saliva contains buffer chemicals this helps to stabilize the pH to near 7 (neutral) in the mouth. All sour food such lemon, oranges, berries tomatoes helps in generating saliva.
Foods high in fiber may also help to increase the flow of saliva and a bolus of fibre like celery string can force saliva into trapped food inside pits and fissures on chewing surfaces where over 80% of cavities occur, to dilute carbohydrate like sugar, neutralize acid and remineralise tooth like on easy to reach surfaces.
Eating a balanced diet and limiting snacks can prevent tooth decay and periodontal disease. The Fédération dentaire internationale (FDI World Dental Federation) has promoted foods such as raw vegetables, plain yogurt, cheese, or fruit as dentally beneficial—this has been echoed by the American Dental Association (ADA)