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“What is the strongest substance in the body?” If this question comes up on trivia night, be prepared to impress your team when you confidently answer, “Tooth enamel!”

Tooth enamel? The reason for this surprising answer lies in the biology of our teeth. Minerals make up well over 90% of our enamel, a much higher percentage than is found anywhere else in the body, including our bones. But unlike bone tissue, which can heal and regenerate, tooth enamel cannot. Even though it is extremely strong, enamel can be damaged by a process called demineralization.

Demineralization

Demineralization is a result of acids at work in our mouths. Acids actually break down the minerals in our enamel, making the enamel softer. Over time, bacteria attack deeper into the tooth, eventually leading to decay. Acidic foods like sodas, citrus, pickles, and coffee are obvious culprits in providing an acidic environment, but there are other problem foods as well. We all have bacteria in our mouths, which can be helpful or harmful. The bacteria in plaque use the sugars and starches we eat to produce even more acids.

This process is something that takes place very quickly. In fact, even brushing too soon after eating something acidic can damage the demineralized surface of a tooth. Waiting at least 20 to 30 minutes to brush gives our bodies a chance to restore the enamel surface in a process called remineralization.

Remineralization

Our bodies are actually designed to help protect our enamel, and the most important part of this process is saliva production. Saliva cleanses our teeth and reduces levels of acidity. And our saliva constantly washes important minerals over our teeth. Calcium and phosphate ions rebuild and strengthen molecules where demineralization has taken place. This process is called remineralization.

We have other ways to help the remineralization process along. Fluoride toothpastes and fluoridated water speed up the movement of mineral building blocks back to the surface of the tooth. Fluoride also strengthens our teeth so that they resist acids and demineralization better than teeth without fluoride, making them less vulnerable to cavities.

New products are available for home and professional use that are designed to increase remineralization—talk to Dr. Melissa Dennison Newman at our Plaistow, New Hampshire office if you would like the latest recommendations. In fact, talk to us about tooth-friendly menus, the best toothpastes, brushing techniques, and all the ways to keep your enamel its healthiest. You’ll be answering all those trivia questions with a strong, confident smile!

They’re often mentioned together, and that’s understandable. After all, they’re the strongest parts of the body, they’re made of many of the same elements, they both require a diet rich in vitamins and minerals to stay healthy, a pirate flag wouldn’t be the same without them–so, what makes teeth and bones different? Glad you asked!

It’s Elementary

Teeth and bones are so strong because of their mineral composition. They have the highest concentration of calcium and phosphorus in the body, and these minerals combine to create sturdy structures which support our bodies, protect our organs, and help break down and digest our food. And they work well together—healthy teeth maintain jawbone density, and healthy jaws hold our teeth firmly in place.

But there are important differences in the anatomy of teeth and bones as well. Bones contain living cells, blood vessels, and nerves. They grow larger as we grow. As we age, old bone tissue breaks down and is constantly replaced with new bone tissue. This process enables our bones to stay strong throughout our lives. And bones heal.

When you break a bone, your body begins working right away to protect and heal the damaged area. Blood cells help with clotting around the break. After a few days, collagen proteins work to replace the clotted cells and form a soft callus. Within weeks, calcium phosphate deposits strengthen the collagen framework. Over time, the bone hardens and reshapes.

And while tooth enamel is the hardest substance in our bodies—harder even than bone—it is not indestructible. Our enamel is basically composed of minerals rather than living tissue, so it can’t regenerate. The enamel covering our teeth doesn’t replace cells as they age, and it can’t create new tooth cells if a tooth is injured through damage or decay. This means that a cracked or broken tooth can’t knit itself together, and enamel lost to decay won’t grow back.

Dr. Melissa Dennison Newman can restore your smile with fillings, or crowns, or even implants if necessary, but preventing injury to your teeth is always best.

Protecting Teeth and Bones

You can make sure your teeth and bones are their safest and strongest by being proactive.

External bone injuries can be avoided with the use of proper safety equipment. Helmets, padding, work boots—if your work or play recommends protective gear, use it! Fortunately, there’s also protective gear for teeth.

• Helmets

Helmets not only protect against brain injury and concussion, they are often designed to protect the face, mouth, and jaw as well.

• Mouthguards

Mouthguards protect the teeth, lips, tongue, and jaw from damages caused by physical contact and falls. They’re available over-the-counter, or ask Dr. Melissa Dennison Newman to fabricate a custom guard for the most comfortable and secure fit. A custom guard is an excellent option for people with braces, bridgework, or other dental appliances.

• Night Guards

Grinding and clenching the teeth at night can lead to loose and cracked teeth, headaches, jaw pain, and other unhappy consequences. Protect your teeth from the damage caused by bruxism (tooth grinding) by wearing a night guard.

Finally, one big difference between tooth and bone design: bones are safely hidden away inside the body, while our teeth are exposed to harmful plaque, bacteria, sugars, and acidic foods every day. Give your teeth the preventive care they deserve with twice-daily brushing, flossing, and regular visits to our Plaistow, New Hampshire office. After all, your beautiful, healthy smile was never designed to be hidden!

Quick trivia question: define “mamelon.” Some kind of warm blooded animal? No, not a member of the mammal clan, but good guess. A fruit of the gourd family? Nope! There are watermelons, and honeydew melons, and even canary melons, but no ma-melons. Those little rounded bumps you notice on the edge of your child’s permanent incisors when they first emerge? We have a winning answer!

• Why Do We Have Mamelons?

We have eight incisors, or biting teeth, in the front of our mouths—four on top and four on bottom. Mamelons are actually a clue as to how these incisors were formed. Even before a baby is born, the permanent teeth begin to take shape. Three different groups of cells develop to form the incisal edge of these front teeth. As they fuse together, they create three lobes of enamel on the erupting edge of the tooth. It’s these lobes, or bumps, that give the teeth a serrated appearance.

Whether your child’s mamelons are quite prominent or barely noticeable, if you are worried about them, relax! They are almost always a temporary part of your child’s smile, and disappear over time with chewing and normal wear. But what if the mamelons overstay their welcome?

• Cosmetic Concerns

Because mamelons are composed of enamel, without the underlying dentin layer found in the body of the tooth, they can appear translucent or a bit different in color. They might wear away unevenly, leaving the tooth edges looking misaligned. Or, they might not wear away at all if your child’s tooth eruption is delayed. Talk to Dr. Melissa Dennison Newman if mamelons are a cosmetic concern for you or your child. You might discover that they are wearing away naturally, or we can discuss ways to polish or smooth them down if needed. This is a painless procedure that doesn’t require an anesthetic. Generally, however, this is a matter where time will resolve the issue for you.

• Orthodontic Implications

Occasionally, mamelons might become a topic of discussion for orthodontic reasons. Sometimes, mamelons do not wear away over time because of a malocclusion (misaligned bite). Your orthodontist will let you know your child has a bite problem and can explain treatment options. Your orthodontist might also suggest smoothing away the mamelons to ensure that the edges of the incisors align correctly and symmetrically while the teeth are in the process of straightening. Again, this is not always considered a necessity, so weigh your options with your dental care provider.

So, if you notice that your child’s beautiful new teeth are bumpy or serrated as they erupt, don’t be concerned! If you have any questions about mamelons, talk to Dr. Melissa Dennison Newman at your next visit to our Plaistow, New Hampshire office. This is a natural occurrence and most likely just a temporary “bump” in the road. Soon enough, mamelons will be a memory—and the answer to a pretty difficult trivia question.

Happily for all of us who like to celebrate with friends and family, there’s no need to be Irish to enjoy St. Patrick’s Day. Every March 17^th, many of us take the opportunity to display a bit of Gaelic spirit.

• Green Clothing (it’s tradition!)
• Green Hat (for a jaunty look)
• Green Shamrock (always the perfect accessory)
• Green Hair (for the adventurous among us)
• Green Grins?

Here’s where we draw the line. Emerald Isle? Delightful! Emerald smile? Not so beguiling.

That traditional St. Patrick’s party fare—green-frosted sweet treats and green-colored pastries and green-foamed beers—is full of green-tinted food dyes, which can leave us with teeth in subtle shamrock shades. Luckily, most of us will have only a very temporary tinge to remind us of our dietary shenanigans, and there are simple ways to rid yourself of the green sheen:

• Indulge sparingly in colorful cuisine, and drink water afterwards to rinse away green-dyed foods and beverages.
• Use a straw for green drinks.
• Brush your teeth. (Not only will you brush away the green, but you’ll brush away the sugars from sweet green desserts and the acids from sour green brews.)
• Try a whitening toothpaste.

One special note: if you’ve just whitened your smile, best to eliminate strong food dyes from your diet for a few days. Teeth are more sensitive to staining after whitening, because the whitening process temporarily makes them more porous. Give yourself a few days, and your enamel will be back to (stain)fighting strength.

So, celebrate on the 17^th and feel secure that on the 18^th, your smile won’t be “wearing the green” any longer. But if you find that you’re not happy with the appearance of your smile anytime during the year, if you have more permanent staining caused by natural darkening over time, or workdays fueled by black coffee, or a diet filled with tomato sauce, dark berries, red wine, and other tasty (but discoloring) food, you’re still in luck.

Ask Dr. Melissa Dennison Newman about professional whitening procedures at our Plaistow, New Hampshire office for a brighter, more confident smile. And with a bright, confident smile, every day’s a reason to celebrate!