What are teeth eaten to turn to be yellow to turn white?

What are teeth eaten to turn to be yellow to turn white?

1.Celery
Just as not sweep fiber thick,it is lose by some food residue at the tooth not to sweep, in addition strenuous to if you can't chew, heal and can if you can't stimulate, secrete by saliva, equilibrate sour alkali value in the oral cavity, reach the natural antibacterial result.
2.Guava banana
The tropical fruit includes high and links C to safeguard the gingivae to be healthy. Lack gingivae will become fragile, apt to suffer from disease, appear the intersection of gingivae and swelling, bleed, the intersection of tooth and the intersection of person who loosen or loss and symptom seriously for instance.
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