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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. Meuselbach know how your experiments turned out the next time you visit our West Chester office!

At Robert Scott Meuselbach DDS, we have patients coming in asking us why a taste of ice cream or a sip of coffee becomes a painful experience, or why brushing or flossing makes them wince or cringe. The answer, usually, is sensitive teeth. Tooth sensitivity typically occurs when the underlying dentin layer of the tooth is exposed in the oral cavity, and most people experience tooth sensitivity at some point in their lives.

So, why do people experience sensitivity and how do you know if tooth sensitivity is something to be worried about? The most common cause of the sensitivity is exposure of the dentin, which is the layer surrounding the tooth’s nerve. Contributors to tooth sensitivity include teeth whitening and dental work such as fillings, periodontal treatment, and the placement or adjustment of braces. These are temporary and should be of no concern.

Permanent hypersensitivity, however, may require treatment at Robert Scott Meuselbach DDS. The first step is to determine the cause, and that begins with a visit to our West Chester office.

The reasons your teeth may become sensitive vary, but possible causes include:

• Tooth decay (cavities) near the gum line
• Cracked or fractured teeth
• Fillings that are worn
• Gum (periodontal) disease, or recession of the gums
• Worn tooth enamel
• Brushing too hard
• Consuming acidic foods

Dr. Meuselbach and our team at Robert Scott Meuselbach DDS want you to know that sensitive teeth can be treated, and the type of treatment will depend on what is causing the sensitivity. Dr. Meuselbach may suggest one the following treatments:

• Desensitizing toothpaste, which contains ingredients that seal off the microtubules inside the exposed dentin to reduce tooth sensitivity
• Fluoride gel, which strengthens compromised tooth enamel, helps prevent tooth decay, and decreases hypersensitivity of the teeth
• A crown, inlay, or bonding, which is used to treat tooth decay and prevents sensitivity
• A surgical gum graft. If gum tissue has been lost from the root, this procedure will protect the root and reduce sensitivity.
• Root canal: If you are experiencing severe and persistent sensitivity which cannot be treated by other means, Dr. Meuselbach may recommend you undergo a root canal to eliminate the problem.

If you are experiencing tooth sensitivity, give us a call today so that Dr. Meuselbach can provide you with some much-needed relief!

The wisdom teeth are the last of the permanent molars to emerge from the gums. This can occur as early as age 17 or as late as 21. Though some teens and young adults experience a completely normal tooth eruption with ideally aligned molars that pose no health threat, this is not the case for everyone.

According to the American Association of Oral and Maxillofacial Surgeons (AAOMS), wisdom teeth must meet specific criteria to avoid a required extraction. These guidelines include:

• Completely erupted and non-impacted
• Completely functional
• Painless
• Free of decay
• Disease-free
• Capable of being properly cleaned

If one or more of your child’s wisdom teeth do not meet these conditions, we recommend scheduling an appointment with Dr. Meuselbach; an extraction may be necessary.

Impacted wisdom teeth

One of the most common reasons for extracting a wisdom tooth is due to impaction. An impacted wisdom tooth is one that has not erupted and will not fully erupt from the gums. Usually this occurs because there is not enough room for the tooth to emerge. Impaction can be painful and can also lead to infection if left untreated. According to the AAOMS, roughly 90 percent of the teen and adult population has at least one impacted tooth. Extracting an impacted wisdom tooth early can help prevent future complications, such as periodontal disease, infections, and damage to neighboring teeth.

Extracting fully erupted wisdom teeth

Even if your child’s wisdom teeth are fully erupted, Dr. Meuselbach and our team at Robert Scott Meuselbach DDS may recommend removing them as a preventive measure. Fully-erupted third molars often interfere with a healthy bite. This can lead to problems with tooth and jaw alignment and may also contribute to the development of headaches. Your child’s wisdom teeth may also be more prone to tooth decay and gum disease, because their location in the back of the mouth makes them more difficult to reach for brushing and flossing.

To learn more about wisdom teeth, or to schedule an appointment with Dr. Meuselbach, please give us a call at our convenient West Chester office!

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 West Chester 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. Meuselbach 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!