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Perhaps you’ve heard your friends talking about dental sealants, and how well they prevent cavities. And as soon as your child’s permanent molars come in, you absolutely plan to make an appointment at our Creve Coeur or St. Charles office for this treatment. But should you also be concerned with your child’s baby teeth? Could they benefit from sealants too?

Even though those beautiful baby teeth are going to be replaced with permanent teeth, they should still be protected. Primary teeth help with speech development, enable your child to develop proper chewing and eating habits, and serve as place holders so that permanent teeth can erupt in the correct place. That’s why you’ve been so careful to help your child brush and floss twice daily, and make regular visits to our office for exams and cleanings.

But some teeth are just harder to keep clean with regular brushing than others. Primary molars, just like permanent ones, have depressions and grooves on the chewing surfaces. These grooves collect bacteria and food particles that are hard for bristles to reach, providing a perfect opportunity for cavities to develop in those little molars.

Cavities are not the only problem which can affect primary teeth. Because baby teeth have thinner layers of protective enamel, a cavity can actually reach the pulp (the center of the tooth) more quickly, leading to pain and potential infection.

While baby teeth can be treated, with fillings, restorations, and even stainless steel crowns, preventing tooth decay is always our first, best choice. And dental sealants are recommended by the American Academy of Pediatric Dentistry and the American Dental Association as one of the most effective ways to prevent cavities in both baby teeth and adult teeth.

Dental sealants are safe and effective.  Sealants are thin coatings (usually a plastic resin or other dental material) that cover a molar’s grooves and depressions, making it impossible for bacteria and food particles to collect there. Applying them is a simple, pain-free process.

Each tooth will be examined first. If we find any signs of decay starting, we will gently treat that area before applying the sealant. After the tooth is cleaned and dried, an etching solution will be brushed on to the surface area being sealed. This etching roughens the surface so that the sealant will hold to the tooth more effectively. A thin coat of the sealant is then painted on and hardened under a curing light.

That’s all there is to it! Sealants typically last from three to five years, and some last even longer. Keep up your regular careful brushing and flossing, and we will monitor the condition of the sealants at each exam.

Talk to Dr. Varble, Dr. Dill, Dr. Wong, and Dr. Parks about dental sealants. We’ll let you know if your child can benefit from the procedure even before those baby teeth give way to permanent ones. It’s never too early to prevent tooth decay!

Let’s talk about the science of our teeth for a moment. Our enamel has a very high mineral content, making it extremely strong.  In fact, enamel just happens to be the hardest substance in our bodies.  But, unfortunately, it is not indestructible! Certain foods we eat can actually damage the surface of our teeth. Some simple and entertaining experiments can show children how our teeth can be affected by things we eat and drink, and how we can help protect them.

If you have a science-minded student at home, there are many activities you can do together, using educational websites, common household products and lots and lots of eggs. (Why eggs? Eggshells are a great substitute for teeth in these experiments. Not only are they various shades of white--like our own teeth, they are also calcium-rich—like our own teeth.) You can find any number of experiments using uncooked eggs, hardboiled eggs, whole shells with the contents blown out, or eggshells alone, so you can find just the right activity for whichever egg treatment works best for you.

Examine Enamel Erosion

One of the ways we protect our teeth is with healthy eating. The bacteria in plaque use the sugars and starches in our foods to produce acids. These acids are the substances that break down the minerals in our enamel and leave the enamel weaker. Weaker enamel is more easily attacked by bacteria and acids, which leads to cavities.

With eggs or eggshells and some carefully selected food products, you can see just how acidity affects teeth. Different websites suggest a variety of acidic liquids to dunk your eggs in, such as vinegar, soda, or citrus juices, so it’s easy to find an experiment that works with your pantry. Always use a plain water sample when you submerge eggs or shells to act as a control to measure differences against. How do the egg shells soaked in acidic liquids differ from those in plain water? It’s also fun to add simple sugar water as a test liquid to see what happens. Is it sugar or acid that causes more damage? And why might that be?

The Fluoride Fix

Fluoride is well known as a mineral that protects the structure of our teeth and helps prevent cavities. And there are actually experiments out there to test the protection fluoride provides using your egg stand-ins.

In some experiments, a hardboiled egg is coated with fluoride toothpaste or rinse for a specific amount of time and then dunked into vinegar. An untreated egg also gets a vinegar bath. You are asked to observe what is happening to each egg as it sits in its vinegar bath—are there bubbles on one egg and not the other? What do the bubbles mean? Other experiments require longer exposure to fluoride and then to vinegar—what happens to the shells of the treated and untreated eggs? What could this mean for our teeth?

Staining Studies

Our diet can do more than help create cavities. Enamel is very strong, but it is not stain-proof! Dark colored foods and drinks can make our teeth appear darker or more yellow. (And teeth that have suffered enamel erosion can pick up stains more easily.) How does food affect the brightness of our smiles?

If this question interests you, find experiments that use favorite beverages as a soak for your eggs. Choose liquids with a range of color, such as coffee, soda, and apple juice. Or choose an experiment that uses different varieties of soft drinks. Will foods the same color cause the same amount of discoloration in your egg volunteers? Do you want shorter or longer soaks in each liquid? Do you want to make use of a recycled toothbrush to see if brushing that discolored shell makes a difference? With toothpaste or without?

Even though these activities are designed for older children, they still require adult supervision. You can find detailed instructions for any of these experiments at many science and educational sites online. With some household supplies, plenty of extra cups, and a quantity of eggs, you and your child can demonstrate some of the basic effects our food choices have on the health and appearance of our teeth. It’s a wonderful way to promote healthy eating and brushing habits, scientific curiosity, and shared experiences!

Don’t forget to let Dr. Varble, Dr. Dill, Dr. Wong, and Dr. Parks know how your experiments turned out the next time you visit our Creve Coeur or St. Charles office!

Part of the charm of your child’s smile is those delicate, diminutive baby teeth. We enjoy those smiles while we can, because soon enough, primary teeth make way for the adult teeth that will last your child a lifetime. So you might be surprised if Dr. Varble, Dr. Dill, Dr. Wong, and Dr. Parks and our team recommend a crown for your child’s baby tooth. Is this procedure necessary when the tooth is going to fall out eventually anyway?

Yes, it really is. If a primary tooth is lost before its normal lifespan, several problems can arise.

• Biting and chewing—a full set of baby teeth is best for proper chewing and digestion. And chewing also helps develop face and jaw muscles.
• Speech development—primary teeth help guide speech production and pronunciation.
• Spacing—a baby tooth serves as a place holder for the adult tooth waiting to replace it. If a primary tooth is lost too early, teeth may drift from their correct location and cause overcrowding or misalignment.

When is a Crown Necessary?

The enamel in a baby tooth is thinner than the enamel found in adult teeth, and a cavity can spread quickly throughout a tooth. Within a short period, the tooth’s structure might be too weak for a regular filling. Sometimes the pulp inside the tooth becomes injured or infected and an endodontic treatment is necessary to remove pulp tissue from inside the tooth. The interior will be filled, but the delicate enamel surrounding it will be fragile. Or an accident can leave a tooth fractured or broken, but still vital.

In each of these cases, a crown will protect the tooth from further decay or damage, and will allow the tooth to function normally until an adult tooth is ready to replace it.

What Types of Crowns are Available?

By far the most common choice for a primary tooth is a stainless steel crown. These crowns are prefabricated and can be fitted snugly to your child’s individual tooth. They are easy to place, less expensive than other crown alternatives, and will last until the tooth is ready to fall out in its proper time. If your child suffers from a metal allergy, or a more natural looking crown is necessary, talk to us about other possible options during your appointment at our Creve Coeur or St. Charles office.

Sure, preserving a baby tooth that was never designed to be permanent seems contradictory. But saving a tooth that helps your child develop proper eating habits, speech production, and correct adult tooth alignment? Those are benefits that will last a lifetime.

Dr. Varble, Dr. Dill, Dr. Wong, and Dr. Parks and our staff rely on digital X-rays to help us diagnose oral conditions and process images at incredibly high speeds. You can also view digital X-rays in real time while we examine your mouth with an intraoral camera and upload the images to a software program. A chairside computer monitor lets you see these images as we refine areas of concern to ensure an accurate diagnosis.

But are dental X-rays safe?

Yes! They emit 80 percent less radiation than exposure-type X-rays and provide detailed images to improve diagnosis and treatment. We can now detect dental problems in their earliest stages without subjecting you to unnecessary radiation. The amount of radiation released by digital X-rays is “negligible,” which means the amount is so small, that it can be safely disregarded.

Safe enough for children and pregnant women, digital X-rays detect microscopic pitting in tooth enamel and other abnormalities in the oral tissues that might have remained undetected with traditional X-rays. When Dr. Varble, Dr. Dill, Dr. Wong, and Dr. Parks and our staff discover dental caries in their earliest stages, we can initiate treatment measures that will effectively prevent cavity development, tooth decay, and potential tooth loss.

Patient appointment lengths are shortened with digital X-rays as well, because images are immediately viewable and do not require the exposure time associated with old-style X-rays.

How Digital X-Rays Differ from Traditional X-Rays

Instead of using cardboard-contained film, we insert a small sensing device about the size of a pen in your mouth and engage the digital X-ray machine by manually manipulating control buttons. Within seconds, images appear on the monitor that can later be stored in your file or sent to another doctor for further examination.

The increased resolution afforded by digital X-rays means that patients are able to understand the seriousness of their dental issues better, and are more inclined to follow through with procedures recommended by Dr. Varble, Dr. Dill, Dr. Wong, and Dr. Parks.

Safer, Better and Faster

For detection of cancerous tumors in their early states, digital X-ray technology offers vast improvements over film X-rays because of its cutting-edge image processing capability. Early detection of oral cancer and dental caries is the best way to prevent any type of oral health problem from exceeding the treatable stage.