Teeth have a close relationship with our daily even the whole life. However, we may have such-and-such problems about them. Even the slightly matters, such as surface stains, which caused by smoking, drinking tea or coffee, could make ourselves bogged down. Thus, in order to whiten the teeth and brighten the smile, we should pay attention to the following 6 food and never lose chance to miss them.

Celery
Celery belongs to fiber food, which can clean the residue on teeth. The more celeries you chew, much saliva will be secreted. Saliva takes role in balancing pH in the oral cavity, so as to achieve the purpose of whitening teeth.

Cheese
Calcium and phosphate are able to balance the pH of the oral cavity and prevent decayed tooth. Eating cheese can enhance the teeth of calcium and make teeth more robust.

Peppermint
Mint contains a special substance called the Mono-olefin Polymer, which can reach the lungs through the blood and make people feel fragrance when breathing.

Sugar-free Gum
Chewing sugarless gum is capable of increasing saliva secretion, balancing pH of oral cavity and protecting the teeth.

Water
Through keeping the gum in a moist state, water-drinking can stimulate the oral secretion of saliva. Therefore, drink a glass of water every time after eating is recommended here.

Green Tea
Green tea is a kind of healthy drink, it is rich in fluorine element, which can neutralize apatite in the teeth, and thus it plays a role in preventing tooth decay. On the other side, catechuic acid in green tea can also play a role in reduction of Streptococcus mutans, which is able to prevent the formation of tooth decay and eliminate the peculiar smell.