Apple cider vinegar has been used for centuries as a disinfectant and natural cleaning product.
Acetic acid, which is the main active ingredient in apple cider vinegar, effectively kills bacteria. The antibacterial property of vinegar is what makes it useful for cleaning your mouth and whitening your teeth.
One study performed on cow teeth found that apple cider vinegar does have a bleaching effect on teeth. However, they also found that vinegar may soften the teeth.
The acetic acid in vinegar has the potential to erode the enamel on your teeth. For this reason, you should not use apple cider vinegar every day. You should also limit the amount of time that apple cider vinegar is in contact with your teeth.
To use it as a mouthwash, dilute it with water and swish it around in your mouth for several minutes. Make sure to rinse your mouth with plain water afterwards.
A diet high in fruits and vegetables may be good for both your body and your teeth.
While they’re no substitute for brushing your teeth, crunchy, raw fruits and vegetables can help rub plaque away as you chew.
In particular, strawberries and pineapple are two fruits that have been claimed to help whiten your teeth.
Strawberries
Whitening your teeth with a strawberry and baking soda mixture is a natural remedy that has been made popular by celebrities.
Proponents of this method claim that the malic acid found in strawberries will remove discoloration on your teeth, while the baking soda will buff away stains.
However, this remedy has not been completely backed up by science.
While strawberries may help exfoliate your teeth and make them appear whiter, they are unlikely to penetrate the stains on your teeth.
A recent study found that a strawberry and baking soda mixture produced very little color change in teeth, compared to commercial whitening products.
If you decide to give this method a try, limit its use to a few times per week.
Despite studies showing that a strawberry and baking soda paste had a minimal effect on tooth enamel, excessive use could cause damage.
To use this remedy, smash up a fresh strawberry, combine it with baking soda and brush the mixture on your teeth.
Pineapple
Some claim that pineapple can whiten teeth.
A study found that a toothpaste containing bromelain, an enzyme found in pineapples, was significantly more effective at removing tooth stains than a standard toothpaste.
However, there is no evidence that eating pineapples produces the same effect.
6. Prevent Tooth Stains Before They Happen
Your teeth naturally yellow as you age, but there are some things you can do to prevent stains on your teeth.
Limit Staining Foods and Beverages
Coffee, red wine, soda and dark berries are infamous for staining teeth.
That doesn’t mean you have to completely avoid them, but you should limit the amount of time these substances are in contact with your teeth.
If possible, drink beverages known to stain teeth out of a straw to prevent direct contact with your teeth.
Moreover, brush your teeth soon after consuming one of these foods or beverages to limit their effects on the color of your teeth.
Additionally, avoid smoking and chewing tobacco, both of which can cause tooth discoloration.
Limit Sugar in Your Diet
If you want whiter teeth, cut back on your sugar intake.
A diet high in sugar supports the growth of Streptococcus mutans bacteria, the primary type of bacteria that causes plaque and gingivitis.
When you do consume a sugary food, brush your teeth soon after you eat.
Get Plenty of Calcium in Your Diet
Some tooth discoloration is caused by enamel eroding away and exposing the dentin underneath, which is yellow in color. Therefore, anything you do to strengthen the enamel of your teeth will help keep your teeth pearly white.
Calcium-rich foods, such as milk, cheese and broccoli, may help protect your teeth from enamel erosion.
7. Don’t Underestimate the Value of Brushing and Flossing
While some tooth discoloration comes naturally with age, it is largely a result of plaque build-up.
Regular brushing and flossing can help your teeth stay white by reducing bacteria in your mouth and preventing plaque build-up.
Toothpaste gently rubs out stains on your teeth, and flossing removes bacteria that lead to plaque.
Regular dental cleanings can also help your teeth stay clean and white.
However, most dentists offer whitening treatments that are much stronger than these natural remedies. They involve bleaching the teeth, which may be more effective for severe tooth discoloration.