Though there are many chemical whiteners on the market, we can also use natural whitening methods that won't put the health of our teeth in danger. Sometimes instead of using chemicals we can simply... eat!Enamel color changes
Even the whitest teeth will stain with age. It happens due to craze lines which occur in enamel. Craze lines are tiny cracks in which substances that cause discoloration may gather. What affects the level of discoloration is our lifestyle, that is how much staining food or beverages we eat and drink, whether we smoke or whether we take care of oral hygiene.Eat a lot of calcium
Calcium is the most important constituent of enamel. If enamel has sufficient amount of calcium it is less susceptible to craze lines and - in effect - to discoloration. The best source of calcium are dairy products such as cheese, processed cheese, yoghurts, kefirs and, of course, milk. Fishes (especially sprat and sardine) are also a good source of calcium. As well, you should attempt to include in your diet fluorine and vitamin D, which is indispensable for absorbing calcium. Eat also eggs, soy, cereal products and rennet cheese.Eat hard vegetables and fruits.
Kohlrabi, celery, carrot or apples may also help to whiten your teeth. It happens because they possess abrasive qualities - while eating them the plaque is being removed. They also stimulate the production of saliva which prevents plaque formation.Eat reasonable amounts of citrus fruits
Fruits like oranges or pineapples contain acid that may whiten your teeth. Similarly to apples or carrots, they also cause salivation. Unfortunately, citric acid also erodes the enamel. Therefore, it is advised to brush teeth with a remineralizing toothpaste before eating a sour fruit.Avoid staining food and beverages
Eventually, it is simple: if you wish to have white smile, cut down on drinking the following beverages:
- Coke (and other carbonated soft drinks)
- red wine
- beetroots (and beet juice)
- blackcurrant juice
- sauces with intense colors (curry, tomato, soy sauce)
- fruits of the forest (blackberry, raspberry, blueberry)
- colorful candies
- a lot of different products containing colorants based on sugars and acids.
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