Whitening a single dark tooth


Teeth inevitably begin khổng lồ yellow with age, but a range of strategies can slow the process và even reverse it.

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While tooth-whitening kits are readily available at most pharmacies, many natural remedies can also help remove stains & protect tooth enamel.

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The following strategies may help whiten teeth:

1. Making dietary changes

Eliminating foods that mark the teeth can prevent further staining. Foods & beverages that contain tannins, such as wine và tea, can stain the teeth. Coffee, dark sodas, and juices can also stain them.

Acidic foods can make the teeth look yellow by wearing down the enamel. People who are concerned about the màu sắc of their teeth should avoid the excessive consumption of citrus, coffee, and soda. Alternatively, they should always brush their teeth after having them.

Dentists generally recommend waiting at least 30 minutes after eating before brushing the teeth. Acids can weaken the enamel, so brushing too soon can cause damage.

Quitting smoking or tobacco products can reduce the risk of nicotine stains. It can also prevent tooth decay và gum disease, both of which can damage the enamel và cause oral health issues.

2. Trying oil pulling

Oil pulling is the term for washing the mouth with oil to lớn remove dirt, bacteria, & debris. It is not a substitute for regular brushing or flossing, but some research suggests that washing the mouth with certain oils may help khổng lồ whiten the teeth.

The American Dental Association (ADA) considers oil pulling khổng lồ be unconventional dentistry, stating, “there are no reliable scientific studies to lớn show that oil pulling reduces cavities, whitens teeth, or improves oral health & well-being.”

However, lớn try this method, rinse the mouth with oil for about trăng tròn minutes after brushing, then spit it out.

Oils suitable for oil pulling include:

sunflower oilsesame oil

3. Brushing with baking soda

Baking soda can gently polish away stains on the surface of the teeth. Some people worry that baking soda is too harsh & may grind away enamel, but research from 2017 found it khổng lồ be a safe way to remove stains.

Baking soda may also help to lớn fight bacteria, which suggests that it may be able khổng lồ reduce plaque & prevent tooth decay.

4. Using hydrogen peroxide

Hydrogen peroxide is a mild bleach that can help lớn whiten stained teeth. For optimal whitening, a person can try brushing with a phối of baking soda và hydrogen peroxide for 1–2 minutes twice a day for a week. They should only vì chưng this occasionally.

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Hydrogen peroxide may increase tooth sensitivity, so it is not suitable for long-term use or for people who already have sensitive teeth.

5. Whitening with fruit

Papain và bromelain, which are enzymes that occur in papayas & pineapples respectively, may both help khổng lồ whiten teeth.

A 2020 study found that tooth bleaching gels containing bromelain or papain have substantial clinical potential lớn whiten teeth.

However, more research is necessary to determine whether or not these enzymes are effective. The ADA does not recommend rubbing your teeth directly with pieces of fruit, as the acid in the fruit can actually make the color of teeth worse.

6. Chewing high fiber foods

Chewing certain high fiber vegetables và legumes can help neutralize the acid in the mouth & protect the enamel on the teeth.

Beans or leafy greens like spinach trigger the mouth khổng lồ produce more saliva, which helps clean the mouth from acid.

Teeth turn yellow for two reasons:

Enamel thinning

The outer layer of teeth consists of enamel, which is colored almost white and protects the deeper tooth structures. Beneath the enamel is a layer of tissue called dentin, which is yellow-brown. When the enamel layer thins or wears away, the dentin shows through more so teeth begin khổng lồ look darker.

Acidic foods, gum disease, và aging can wear down tooth enamel. Some people also have enamel that is naturally thinner.


Specific foods and beverages, such as coffee, can stain the teeth. Some foods that stain the teeth may also wear down the enamel, increasing the yellowing.

Other sources of stains include smoking and tobacco products, and some medications.