How to eat and drink to avoid tooth decay?

How to eat and drink to avoid tooth decay?

Tooth decay is one of the common dental diseases, very easy to get if we do not have a good oral care regimen. However, many foods help prevent tooth decay and keep teeth strong and healthy.

1. Why do tooth decay occur?

Many studies show that three factors cause tooth decay: bacteria, sugar, and the time the bacteria and sugar stick to the teeth. Bacteria that cause tooth decay reside in the dental plaque layer. Sugar is in food and drink. The time bacteria survive in the mouth is from 20 minutes – 1 hour after eating. Bacteria use sugar to form dental plaque. They ferment sugar to create acid, which erodes inorganic substances in tooth enamel and dentin, causing tooth decay.
Teeth are also eroded by the acidic environment in the mouth, in which the tooth’s hard tissue is chemically eroded from the tooth surface by exogenous or endogenous acids in a process without the presence of bacteria. Exogenous acids in the diet include citric acid, phosphoric acid, ascorbic acid, malic acid, tartaric acid, and carbonic acid, and have been found in many fruits and fruit juices, carbonated drinks, and vinegar. Corrosion in severe cases can lead to the destruction of the entire tooth. Studies have shown that regularly drinking fruit juices, carbonated drinks (including sports drinks), pickles (with vinegar), citrus fruits, and berries increases tooth erosion.

2. Foods that help limit tooth decay
To prevent tooth decay, we should eat according to the following recommendations: eating less than 500g sugar/person/month will significantly reduce the risk of tooth decay. Strong sugar substitutes and xylitol do not cause tooth decay. Although less sweet varieties are metabolized by bacteria in the mouth, they are metabolized at a very slow rate, so they can be considered safe. In the future, medicine for children will also use sweeteners to replace sugar, which will reduce the rate of tooth decay in children. White radish is a food that helps clean teeth and contributes to the remineralization of tooth enamel, preventing tooth decay.


Use food sources rich in calcium and vitamin D: Found in milk, green leafy vegetables, fish, cheese, dried beans… help prevent tooth loss and osteoporosis in the elderly. Although in our country, the habit of eating cheese is not common, it is a rich source of calcium. When eating cheese, calcium will be released, stick to the tooth surface and have the effect of restoring the tooth surface against attack. of acid almost immediately.
Starch: Epidemiological studies show that starch has a low risk of causing tooth decay. People on high-carb/low-sugar diets generally have low levels of tooth decay, while people consuming low-carb/high-sugar diets have high levels of tooth decay. Cooked starch has 1/3 or 1/2 the caries-causing ability of sucrose.
White starchy foods (flour that removes many of the outer layers of cereal grains) cause sugars and acids to stick firmly to teeth. Therefore, in daily meals, we should alternate refined and coarse foods with foods high in fiber (cellulose) to make teeth strong and clean.

Vegetables and fruits: Eating foods rich in fiber will help stimulate saliva secretion, help clean teeth and contribute to the remineralization of tooth enamel, preventing tooth decay. Eat foods that are not harmful to teeth: such as cucumbers, cabbage, cauliflower, zucchini, pumpkin, eggplant, radishes, carrots, melon, lettuce… help clean teeth and remove Remove limescale. You should only eat 200g/meal. If you eat too much, it will cause constipation. When eating, you should chew thoroughly.
Foods that are not good for teeth: such as bananas, dates, grapes, tomatoes, figs, figs, sweet apples, pomegranates, oranges, tangerines, kumquats, tamarind… because they contain a lot of carbohydrates, but should not be cut out. Great because they also have many dental benefits such as cleaning and fluoride.
3. Maintain oral hygiene
You should rinse your mouth immediately after eating or drinking sweets. Brush your teeth 2-3 times a day, after meals and before going to bed. You should use toothpaste with fluoride. Note that you should not brush your teeth immediately after eating and drinking fruit juice because at that time the tooth enamel is softer due to the effect of fruit organic acids, the brush will erode the tooth enamel. Wait about 30 minutes to give saliva time to recover and balance the minerals in your teeth, then brush your teeth. Dr.ELO nano silver antibacterial mouthwash is produced at a factory meeting GMP standards, using advanced technology from a French partner.
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Theo Suckhoedoisong