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It seems like the ads are everywhere these days—repair your enamel and reverse tooth decay with a tube of toothpaste! Are these claims too good to be true? Let’s dive into the science of tooth decay—how decay develops and how (and if!) it can be reversed.

Teeth can stand up to the powerful pressures of biting and chewing because over 95% of our enamel is made up of minerals. Calcium and phosphate ions in our teeth bond to form a crystal structure called hydroxyapatite. Because of the strength of this crystalline design, tooth enamel is the hardest substance in our bodies, even stronger than our bones. 

But bones, like most other parts of our bodies, are living tissue, which means that they can create new cells to replace old or damaged cells. Tooth enamel can’t regenerate new cells to repair itself. This means that when a cavity has made a hole in the tooth, the enamel can’t grow back. And, while enamel structure is very strong, it’s also vulnerable to damage—specifically, damage from acids. 

Our teeth are exposed to acids throughout the day, whether they are acids created by plaque bacteria or the acidic foods and drinks we consume. Acids dissolve mineral bonds, stripping calcium and phosphate minerals from the enamel and leaving weak spots in the tooth surface. This process is called demineralization. Demineralization is the first stage of tooth decay.

The good news? Our bodies are designed with a built-in defense mechanism to prevent demineralization from causing lasting damage. All through the day, saliva helps wash away acids in the mouth and bathes our teeth with new calcium and phosphate ions. These ions bond with the calcium and phosphate in our enamel, restoring enamel strength. This protective repair process is called remineralization.

Now for the bad news. In the tug of war between demineralization and remineralization, saliva can only do so much. If your diet is heavy with acids, if you don’t brush away acid-producing plaque bacteria regularly, if you eat a lot of the sugars and starches which feed plaque bacteria, the remineralizing effects of saliva can’t keep up with the demineralizing effects of acids.

The first visible sign of demineralization is often a white spot on the tooth where minerals have been stripped from enamel. Studies have shown that enamel-strengthening toothpaste can be effective in this very first stage of tooth decay. Toothpastes which advertise enamel repair generally contain one or more of these ingredients:

• Calcium Phosphate
• Hydroxyapatite
• Fluoride 

Toothpastes with calcium phosphate or hydroxyapatite contain calcium and phosphate minerals, the building blocks of tooth enamel. Studies have suggested that these minerals can replace the calcium and phosphate ions stripped from enamel. These toothpastes may or may not contain fluoride, which is something you should discuss with your dentist before deciding on a specific toothpaste.

Fluoride toothpastes remineralize enamel—and more! Fluoride ions are attracted to the tooth’s surface, and, when fluoride ions join with the calcium and phosphate ions there, they form fluorapatite. Fluorapatite crystals are larger, stronger, and more resistant to acids than hydroxyapatite crystals. And, once bonded with tooth enamel, fluoride attracts the calcium and phosphate ions in saliva to remineralize the teeth more quickly. 

Why consider enamel-repair toothpaste? 

Once enamel is gone, it’s gone for good. If excess demineralization isn’t treated, a weak spot on the tooth surface will continue to erode, growing bigger and deeper until it becomes a hole in the enamel. This is a cavity, and your dentist will need to treat and repair your tooth to prevent the cavity from growing and potentially exposing the tooth’s pulp to bacteria and infection. 

Talk to Drs. Sheena Allen, Mark Margolin, and Moein Sadrkhani at our Dallas office about which toothpastes can help restore a healthy balance between the ongoing cycles of demineralization and remineralization. While tooth-repair toothpaste can’t fix cavities, these products can often strengthen demineralized enamel and reverse this earliest stage of tooth decay.

At Dallas Dental Arts, we prefer our patients to practice good oral hygiene between office visits. Part of that process includes flossing, which Drs. Sheena Allen, Mark Margolin, and Moein Sadrkhani will tell you, is the process of cleaning between the teeth to remove food and debris from the areas that are hard to reach with a toothbrush. When food is allowed to remain between the teeth, it provides a breeding ground for bacteria, which can cause periodontal disease.

Should you floss before or after brushing?

You can floss either before or after brushing, according to your own preference. By flossing first, you can brush away dislodged food debris afterward. On the other hand, brushing first allows you to loosen plaque between the teeth, making it easier to floss more effectively.

Whichever you choose, the most important goal is to floss thoroughly. That means using a fresh strand of dental floss each day, and carefully pulling it back and forth between all of the teeth. Do not skip flossing because your teeth look or feel clean.

When to Floss

Unlike brushing, you need only floss between your teeth once per day. Although you may choose to do it in the morning or afternoon, many prefer to floss at night to prevent food and debris from remaining in the crevices of the teeth overnight. This could prevent the build-up of plaque too, which is a cause of tooth decay.

Help with Flossing

If you have questions about your flossing technique or what type of floss is best for your teeth, contact our office. Our staff will be more than happy to assist you in perfecting your home hygiene regimen. In most cases, you can choose between interdental cleaning picks or flexible floss strands to perform your daily flossing routine. If you have permanent oral appliances or restorations, be sure to follow the flossing instructions provided to you, and contact our Dallas office with any questions.

Whether you’re using the latest note-taking app or old-school pen and paper, it’s a good time to start jotting down your resolutions for a healthier, happier New Year. To help the process along, we have some suggestions for traditional tooth-friendly resolutions—and also some ideas which might surprise you!

The Classics

• Brush and Floss Regularly

If you’re sticking to the “two minutes twice a day” brushing schedule as well as flossing once a day, great work! Often, though, that two-minute window starts to shrink as our brushing routine becomes *too* routine. Try timing yourself while you brush normally. If you’re falling quite a bit short of two minutes, taking just a bit more time will be lots more effective in removing plaque from your teeth.

And since gum disease is a leading cause of tooth loss in adults, commit to flossing once a day to remove irritating plaque and bacteria from between teeth and around the gumline.

• Use Fluoride Toothpaste

Fluoride toothpaste doesn’t just help prevent cavities by cleaning away plaque and food particles. It also helps make our enamel stronger. 

Acids created by plaque bacteria and acids in our diet dissolve minerals from tooth enamel, making it softer and more vulnerable to cavities. Fluoride bonds with the minerals in enamel to create an even stronger protective enamel coating. Check with Drs. Sheena Allen, Mark Margolin, and Moein Sadrkhani or the American Dental Association’s website for the best toothpaste choices for healthy, strong enamel.

• See Your Dentist Regularly

Dentists typically recommend a full dental exam and cleaning twice each year. Your dental team at Dallas Dental Arts will take X-rays as needed, examine your teeth, gums, and general oral health, and screen for oral cancer. A professional cleaning will remove any built-up plaque and tartar, which is especially important for gum health.

Being proactive with your dental care means you’ll be sharing your healthy smile all year long—as well as discovering any potential problems before they can develop into major problems!

The Surprises

• Chew (Sugarless) Gum

When you’re not producing enough saliva, you feel the effects of dry mouth, including sore throat, difficulty swallowing, and bad breath. Another side effect? Poorer dental health. 

Saliva helps neutralize the acidic foods we eat, washes away bacteria and food particles, and contains minerals like calcium and phosphorus which remineralize tooth enamel. Chewing sugarless gum encourages saliva production. If you suffer from dry mouth, check with your dentist to see if chewing sugar-free gum can help.

• Don’t Brush Right After Eating

Brushing after a meal is great to remove food particles like sugars and carbs which stick to our teeth—and which the bacteria in plaque thrive on. But if you’ve been eating or drinking acidic foods, it’s best to wait about an hour before brushing. 

Acids in foods, like acids created by bacteria, weaken tooth enamel. Brushing right away can be abrasive and damage enamel, but if you wait for an hour, the minerals in saliva have a chance to remineralize and restore your enamel strength.

• Toss Your Toothbrush

Not that we mean give up brushing altogether! But your toothbrush bristles start to fray and fan out after several months, meaning that you won’t be getting the full cleaning effects of your great brushing technique. Put a note on your calendar to replace your brush every three to four months for the best in plaque removal.

If you’re already following all these suggestions for protecting your dental health, resolve to keep up the good work! If not, give these easy-to-follow recommendations a try. Protecting your dental health is essential to gift yourself a new year filled with happy, healthy smiles in Dallas.

As a patient at Dallas Dental Arts, your opinion matters! Drs. Sheena Allen, Mark Margolin, and Moein Sadrkhani and our team love hearing what our patients think about our practice and the services we provide, and now we want to know, what do you think we should blog about?

Perhaps there’s a treatment you’ve always wanted to know about, or you’d like to learn about a specific way to improve your health and smile. Whatever your idea, we’d love to hear about it! You can let us know by posting here or on our Facebook page!