1. (Multiple choice question) Teeth turn yellow and black, what may be the reason?
A
Oral diseases
B
Trauma to the teeth
C
Coffee, strong tea, etc. cause pigmentation
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In the early stage of caries on the smooth enamel surface, the surface of the tooth enamel is decalcified and shows a chalky color, and when the decay reaches the dentin layer, with the penetration of food pigments, the caries area appears brown. If the tooth has undergone trauma, necrosis of the pulp and changes in blood supply may also cause the tooth to become brown-black.
Coffee, tea, Chinese medicine, chocolate, etc. can also cause pigmentation on the tooth surface. Tea scale, smoke stains, some minerals through bacteria and saliva together to form a biofilm adsorbed on the tooth surface, some stubborn molecules even penetrate into the inside of the tooth through the dentin tubule, making the tooth yellow and black.
2. (Multiple choice question) Teeth turn yellow and dark, what treatments can be chosen?
A
Scaling your teeth
B
Cold light whitening
C
Veneer repair
D
Full crown repair
If you find that your teeth turn yellow and black, you don't need to panic excessively, find a professional doctor to solve the problem symptomatically, and choose the most suitable for yourself from the treatment methods such as tooth cleaning, tooth bleaching, cold light whitening, veneer repair, and full crown repair according to the specific situation.
3. (Multiple choice) Which of the following methods can prevent tooth discoloration?
A
Do not drink beverages containing coloring
B
Rinse your mouth promptly after eating
C
Eat more high-fiber foods, such as leafy greens
D
Floss between teeth
To prevent tooth discoloration, you can do this: reduce the amount and frequency of intake of pigmented drinks, drink drinks with straws as much as possible, reduce the contact between the drink and the teeth; Rinse your mouth in time after eating tea, chocolate, drinks and other pigmented foods; Maintain the correct brushing habit, ensure 2 times a day, morning and evening; Eating more high-fiber foods, such as beans and green leafy vegetables, can promote more saliva in the mouth, and coarse fiber can also have the effect of "cleaning" teeth; Floss daily to prevent pigments and bacteria from accumulating between teeth.
Source: Henan Disease Control
Editor: Lu Jiani
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