Jeffrey Salazar
Diet plays a crucial role in maintaining oral health and can significantly impact the colour of your teeth. While brushing and flossing are essential for oral hygiene, certain foods and drinks can cause tooth discolouration and staining. Coffee, red wine, tea, dark sodas, and citrus fruits are known to stain teeth, while sugary foods and drinks contribute to plaque buildup and enamel erosion, exposing the yellow dentin layer underneath. To prevent staining and promote whiter teeth, it is advisable to consume teeth-staining beverages through a straw and brush your teeth shortly after consumption. Additionally, incorporating crunchy fruits and vegetables, such as raw onions, carrots, celery, and high-fibre legumes, can help neutralize acids, increase saliva production, and scrub away plaque. Calcium-rich foods like milk, cheese, and broccoli may also strengthen enamel and protect teeth from erosion. While natural remedies like oil pulling and brushing with baking soda and hydrogen peroxide are popular, they lack scientific evidence and should be approached with caution.
How to whiten teeth with diet changes
| Characteristics | Values |
|---|---|
| Brush your teeth | At least twice a day for 2 minutes each time. Brush your teeth after consuming sugary foods. |
| Toothpaste | Use fluoride toothpaste. Whitening toothpaste has been shown to whiten teeth. |
| Toothpaste substitutes | Baking soda, a mixture of baking soda and hydrogen peroxide, or toothpaste with bromelain. |
| Mouthwash | A mixture of baking soda and hydrogen peroxide with water. |
| Oil pulling | Swish a tablespoon of oil (e.g. sesame, coconut, or olive oil) for up to 20 minutes. |
| Food to eat | Crunchy fruits and vegetables, calcium-rich foods, raw onions, nuts and seeds, and fruits with high vitamin C content. |
| Food to avoid | Sugar, tobacco, dark berries, coffee, red wine, soda, and acidic foods. |
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What You'll Learn
Eat crunchy fruits and vegetables
Eating crunchy fruits and vegetables can help whiten your teeth. The crunchiness helps rub off plaque from your teeth as you chew.
Fruits and vegetables are also known to be very useful for your overall health, so incorporating them into your diet is a win-win.
Some crunchy fruits that can help whiten your teeth include apples, strawberries, and pineapples. Apples are rough, so when you bite into one and chew it, you are helping to clean your teeth. The malic acid in strawberries helps to remove discoloration on your teeth, and they also help increase saliva production, which enables you to prevent tooth decay. Pineapple contains the enzyme bromelain, which effectively removes stains and is useful in overall tooth whitening.
Some crunchy vegetables that can help whiten your teeth include carrots and celery. Carrots help keep your teeth clean with their crunchy texture and high water level. They are also a great source of keratin and vitamin A, which are essential for building strong enamel and maintaining gum health. Chewing on celery stimulates saliva production, which helps neutralize harmful acids and reduce sugar in your mouth.
While eating crunchy fruits and vegetables can help whiten your teeth, it is important to note that they are not a replacement for proper oral hygiene practices, such as regular brushing and flossing.
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Avoid sugar
Sugar is one of the worst offenders when it comes to tooth discolouration. A diet high in sugar supports the growth of Streptococcus mutans, the primary type of bacteria that causes plaque and gingivitis. Sugar can also lead to enamel erosion, exposing the yellow dentin underneath. Therefore, cutting back on sugar is a crucial step in achieving whiter teeth.
To reduce sugar intake, it is important to be mindful of the types of food and drink consumed. Hard candies, chewing gums, and lollipops are notorious for their high sugar content and artificial colouring, which can leave unsightly stains on teeth. Instead of reaching for sugary treats, opt for healthier alternatives that are kinder to your teeth and body.
Drinks such as dark sodas and fruit juices can also be loaded with sugar and contribute to tooth discolouration. Even seemingly healthier options like white wine contain significant amounts of sugar and acidity, wearing down tooth enamel over time. To minimise the impact of these drinks, it is advisable to use a straw and rinse your mouth with water afterwards.
While it may be challenging to completely eliminate sugar from your diet, making conscious choices to reduce sugar intake can go a long way in maintaining healthy and whiter teeth. This includes being mindful of hidden sugars in processed foods and opting for natural sweeteners like stevia or xylitol, which have less impact on tooth discolouration.
Additionally, practising good oral hygiene is essential. Brushing your teeth twice a day and flossing once a day will help remove plaque and bacteria, strengthening the enamel and reducing the risk of discolouration. Remember, a healthy diet and proper oral care are key to achieving and maintaining whiter teeth.
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Consume calcium-rich foods
Calcium-rich foods such as milk, cheese, and broccoli may help protect your teeth from enamel erosion and strengthen tooth enamel and bones. Cheese also contains casein, a type of protein that plays a role in repairing tooth enamel.
To reap the benefits of calcium-rich foods, try incorporating a variety of these foods into your diet. For example, start your day with a glass of milk and include cheese and broccoli in your meals or as snacks.
In addition to calcium-rich foods, maintaining a healthy diet overall can contribute to whiter teeth. This includes limiting sugary foods and beverages, which can contribute to tooth decay and enamel erosion. Instead, opt for crunchy fruits and vegetables, like apples, celery, and carrots, which can help scrub away plaque and bacteria while providing vitamins and minerals that strengthen teeth.
While dietary changes can help, it's important to combine them with proper oral hygiene practices, such as regular brushing and flossing, to effectively whiten your teeth and maintain their health.
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Drink beverages through a straw
Drinking beverages through a straw is a well-known method for preventing tooth discolouration. This is because the straw reduces contact between the drink and your front teeth, which are the most visible. Dark-coloured drinks such as tea, coffee, and red wine are known to cause discolouration, so drinking them through a straw can help to maintain the whiteness of your teeth.
However, it is important to note that this method does not protect your back teeth from staining. If the straw is placed right behind the front teeth, the back teeth will be exposed to the drink and will become stained over time. To fully protect your teeth from discolouration, the straw should be positioned closer to the back of the mouth.
Additionally, while drinking through a straw can reduce the risk of staining, it does not eliminate it. The tongue will still soak up the liquid and any sugars in the drink, which can then be transferred to the teeth. Therefore, it is recommended to drink a glass of water after consuming sugary or acidic beverages, even when using a straw.
Furthermore, the effectiveness of drinking through a straw to prevent tooth discolouration is debated. Some dentists argue that it helps to reduce contact between the teeth and the drink, while others claim it is a wasted effort and may even cause adverse effects such as wrinkles.
Overall, while drinking beverages through a straw can be a useful tool for maintaining tooth whiteness, it should be combined with other dental health practices such as regular brushing, flossing, and dental check-ups.
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Brush with baking soda and hydrogen peroxide
Brushing your teeth with a mixture of baking soda and hydrogen peroxide is a popular home remedy for teeth whitening. Baking soda is a mild abrasive that helps buff away surface stains on your teeth, and hydrogen peroxide is a natural bleaching agent that helps kill bacteria.
To make the whitening mixture, combine one tablespoon of baking soda with two tablespoons of hydrogen peroxide. This will create a gritty paste. Apply the paste gently in small, circular motions using a soft-bristled toothbrush. Brush your teeth with this mixture for 1–2 minutes twice a day for a week. However, this should only be done occasionally, as hydrogen peroxide may increase tooth sensitivity and is not suitable for long-term use or for those who already have sensitive teeth.
After brushing with the mixture, rinse your mouth thoroughly with water. Follow up with your regular fluoride toothpaste to give your enamel a protective coating, which helps fight against cavities and decay. This concoction should not replace your daily toothpaste but can be used occasionally as a deep-cleaning treatment.
While this method can help remove surface stains and brighten your smile, it may not remove all stains, especially deeper, older ones. It is also important to note that baking soda is abrasive and can damage tooth enamel if used incorrectly or too frequently. Therefore, it is crucial to be gentle when brushing with this mixture to prevent gum irritation or enamel wear.
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Frequently asked questions
Eating crunchy, raw fruits and vegetables can help rub plaque away as you chew. Strawberries, pineapples, and papayas are fruits that have been claimed to help whiten teeth. Eating a handful of nuts and seeds can also help remove surface stains and limit plaque buildup.
You should avoid foods and drinks that contain tannins, such as wine and tea, as they can stain your teeth. Coffee, dark sodas, juices, and dark berries can also cause discolouration.
Oil pulling is a technique that involves swishing oil (such as coconut, sesame, or olive oil) in your mouth for up to 20 minutes to remove bacteria. Brushing your teeth with a mixture of baking soda and hydrogen peroxide can also help whiten your teeth.
It is recommended to brush your teeth at least twice a day for 2 minutes each time. Be sure to brush your teeth gently in a circular motion to protect your gums.
