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The Dental Diet

Last week we taught you a bit about what makes sugar such a taboo word in dentistry and how it can negatively affect your teeth. Today's article (adapted from the full article here) focuses on some of the main oral health issues you may experience in your lifetime and offers some nutrition ideas to help combat dental disease.

 

 

    Dental health is more important than most people realize. And nutrition plays a big role in this. Want to know what to eat to keep your teeth and gums strong? Without teeth, we can’t chew. Imagine that. No more crunchy raw vegetables and fruits! No more nuts! We need healthy teeth and gums to eat nutritious foods. And we need to eat nutritious foods for healthy teeth. As children, our diet influences how our teeth develop. And once we’re grown, with all teeth in place, what we eat plays a role in maintaining dental health.

 

    If we don’t take care of our teeth and gums, we risk tooth decay, gum disease, and even bone loss. Meanwhile, the state of our teeth and gums can often signal systemic problems, including cardiovascular disease, celiac disease, diabetes, sinus infection, rheumatoid arthritis, irritable bowel disease, gastroesophageal reflux, alcoholism, and more. In fact, your dentist can sometimes diagnose these conditions before your doctor! If our eyes are a window to the soul, our teeth and gums are a window to our bodies.

 

Cavities

A cavity is a hole in the tooth’s enamel. Up to 90% of school children and the majority of adults have at least one cavity. Cavities result from the build-up of plaque – a sticky slimy substance composed mostly of bacteria. In breaking down sugar and carbohydrates, bacteria create acids, and these acids can eat away at the teeth. Cavities hurt when they get bigger and touch nerves. An untreated cavity can become a tooth abscess so if you find a cavity, get treatment fast.

 

Periodontal disease

About half of American adults over the age of thirty have some form of periodontal, or gum disease. Gingivitis, or inflammation of the gum tissue, is an early stage problem. With proper care, you can reverse it. But if you don’t, eventually the inflammation will lead to “pockets,” or little spaces between the teeth and gums. Bacteria love to colonize these pockets, which can lead to periodontitis: the permanent destruction of the tissues that connect teeth to bone in the mouth.

 

Symptoms of periodontitis include swollen or discolored gums, tender gums, bleeding gums, receding gums, change in tooth sensation when eating, loose teeth, tooth loss, and bad breath. And as if that weren’t bad enough, when gums are inflamed and broken, harmful bacteria can enter the bloodstream more easily, leading to other chronic health problems. Periodontal disease is a risk factor for coronary artery disease. Why? We don’t really know for sure, but apparently gum disease doesn’t just signal inflammation; it also increases inflammation. And inflammation contributes to coronary artery disease. Interestingly, the same bacteria that colonize our gums have also been found in arterial-wall plaque.

 

What to eat or avoid

Eat a mostly whole foods diet with lots of lean protein and fresh vegetables. Avoid most processed foods, especially those that are high in simple sugars. Want to go for bonus marks? Here are a few foods, nutrients, and/or supplements that may play a specific role in oral health.

 

Probiotics

Probiotics may help to decrease gingivitis and plaque; bacteria in fermented foods might suppress the growth of pathogens in the oral cavity. One study showed that consuming fermented dairy was associated with less periodontal diseases. Probiotics from any source could be helpful in a similar way.

 

Cranberries

Cranberries and other plant foods rich in anthocyanins (such as blueberries, red cabbage, eggplant peel, black rice, and raspberries) may prevent the attachment and colonization of pathogens on host tissues (including teeth). Some studies even show that cranberry extract-infused mouthwash improves dental health! Sure, we all knew about blueberries’ superpowers, but who knew that the humble bog berry could give you healthy teeth?

 

Green tea

Polyphenols have been known to reduce bacteria and toxic products of bacteria in the mouth. Tea also tends to be rich in fluoride, possibly the most well-known tooth strengthener.

 

Chewing gum with pycnogenol

Gum made with pine bark or sap has been shown to decrease plaque and bleeding gums.

 

Soy

A diet that includes soy may help to reduce periodontal disease.

 

Arginine

This important amino acid may alter oral pH and reduce chances of cavities.

 

Echinacea, garlic, ginger, and ginseng

Research shows that these plants help to inhibit growth of periodontal pathogens in test tubes. But human studies are still lacking, so we can’t draw firm conclusions about their benefits.

 

Fluoride

The mineral fluoride helps to prevent decalcification in our bodies. In other words, it helps us absorb and use calcium effectively. It also acts topically on teeth to promote their surface health. Fluoride in saliva may help to promote remineralization of enamel. In fact, getting enough fluoride is more important than reducing sugar when it comes to preventing cavities.

 

Sugars & oral health

Eat more sugar, get more cavities, right? Wrong. In fact, one study showed no relationship between eating highly sugared breakfast cereals and developing cavities! It turns out that the sheer amount of sugar we eat may be less harmful to dental health than the frequency of consumption. That’s why sugared sodas and energy drinks are so dangerous; sipping sugar-containing beverages provides repeated hits of sugar on the teeth. Most sugary beverages are highly acidic, which promotes demineralization.  Our mouth gets a double-whammy. Whether frequency or amount of sugar intake is key, one thing is for sure: A diet built around refined and processed carbohydrate foods can lead to tooth decay and gingival inflammation.

 

How much is too much – and what kind?

Added sugars appear worse for teeth than naturally occurring sugars. The World Health Organization suggests that no more than 10% of total energy intake should come from added sugars. So, if you ate 2000 calories per day, that would be 200 calories of added sugars, or 50 grams.

 

Other sweeteners

Artificial sweeteners like sucralose (Splenda) and aspartame (Equal) don’t seem to promote periodontal disease or cavities. Sugar alcohols, such as xylitol or erythritol, don’t seem to influence oral health. Actually, chewing gum containing the sugar alcohol xylitol after meals may even decrease your risk of forming cavities. As for stevia, it doesn’t appear to have negative effects on oral health. But more research is needed here.

 

Recommendations

Get your oral hygiene on. Seriously. Are you flossing yet? Are you brushing at least twice per day? If not, start.

  • Brush your teeth, not only with fluoride-based toothpaste, but also baking soda-based toothpaste. The baking soda will raise the pH in your mouth, making it more alkaline and therefore decreasing risk of cavities.

  • Avoid smoking. Smoking can wreak havoc on gum and tooth health.

  • Drink green tea.  Drinking green tea improves the health of your teeth and gums, as it decreases inflammation, makes your mouth more alkaline, inhibits the growth of cavity-causing bacteria, prevents tooth loss, may slow progression of oral cancer, and freshens breath by killing odor-causing bacteria. Wow! All this, and it can help you to lose fat, too.

  • Chew xylitol gum after meals. Xylitol increases saliva production and prevents the bacteria in your mouth from producing the acids that cause cavities. But don’t go overboard, because even if sugar alcohols won’t harm your teeth, they can cause gas and bloating.

  • Eat mostly whole, nutrient-dense foods that provide plenty of calcium, phosphorus, magnesium, vitamin K (especially K2) and vitamin D. Foods like leafy green vegetables, nuts, seeds, hard aged cheeses, plain yogurt, meats, natto, beans, mushrooms, fish, eggs, and organ meats all work here. Oh, and make sure you get some sunlight.

  • Eat some raw, crunchy fruits and vegetables every day. Raw veggies clean your teeth to a degree (apples, carrots, bell peppers, etc). Eating an apple as dessert after lunch will help to remove material that has adhered to the surface of your teeth. Plus, apples contain naturally occurring xylitol.

  • Limit added sugars from both foods and beverages. This includes soda, fruit juice, energy drinks, candies, etc. Energy drinks are particularly damaging as they combine a high sugar load with an incredibly acidic pH.

  • Increase the amount of arginine in your diet. Eat more spinach, lentils, nuts, eggs, whole grains, meat, seafood, and soy.

  • Get regular exercise. Exercise seems to protect against periodontal disease.
     

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