In life, to make our teeth coloring, yellow for many reasons, can be divided into two aspects, ie, endogenous and exogenous. So, when the tooth is why the yellow, how to whiten it? Here we take a look.
Yellow teeth, painted mainly due to the following factors:
1. Health factors: A tooth during the development of nutrition is not good or has been ill, the calcification of the tooth will be affected, and the teeth will be yellow and crisp;
2. Water quality factors: in some areas, especially some mountainous areas, due to high fluoride content in water, the teeth will be yellow, but not 1-2 teeth, is a mouthful of big yellow teeth;
3. Drug factors: Tetracyclines can dental instruments cause yellow teeth, especially children (5 years ago) taking a greater impact;
4. Health habits: Some people do not pay attention to oral hygiene, there is no brushing habits, tooth surface accumulation layer of food scraps, debris, calculus, Do dental implants can smoke stains, and tea stains.
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