Yellow teeth are not all sick to the teeth cut open view, vertical section has three organizations, the outermost is the enamel, vary, slightly different, because the degree of calcification of teeth each person is different and some human teeth were white, some are yellow, this is healthy.
There are many large yellow teeth is sick. Generally due to:
1, health factors
Teeth during development because poor nutrition or been ill, will be affected by calcification of the teeth, the teeth will be yellow and crisp.
2, drug factors
Now most people are aware of the number of drugs can cause yellow teeth tetracycline occurrence, especially in children (5 years ago) taking a greater impact.
3, health habits
Some people pay attention to oral hygiene, no brushing habits, a layer Dental Equipment of the tooth surface accumulation of food residue, debris, calculus, smoke stains, tea stains, etc. These "yellow teeth" is not itself the teeth yellow, is caused by poor oral hygiene.
4, water quality factors
Some areas, especially in some mountainous areas, due to high water fluoride, dental fluoride drinking too much will be yellow, and not 1-2 teeth, is a large mouthful of yellow teeth. The role of fluoride against dental caries, these people actually difficult health dental caries (tooth decay).
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