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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 Drs. Don and Mindy know how your experiments turned out the next time you visit our Charleston office!

Come say hello twice a year. The American Dental Association says two times is the charm. Multiple visits a year lets us keep an eye out for any developing issues. It’s important to remember that this goes for the whole family. Children over one year old should be seeing Drs. Don and Mindy!

Stay fresh. At Kanawha City Pediatric Dentistry, we have a virtually unlimited stock of toothbrushes and floss, which means you have no excuse to be using a sad, ineffective toothbrush. As soon as bristles begin to fray, pick up a new one or stop by our Charleston office and we’ll replace yours. On average, you should be opening a new one every two to three months.

For goodness sake, floss! Flossing is an efficient way to keep your whole mouth healthy. It not only protects your teeth by removing aggregated plaque, it keeps your gums happy, too.

And brush. Practicing regular healthy habits is essential to keeping your mouth—and us—happy! When it comes to brushing that means two minutes, two times a day. If your kids need some encouragement, try making a calendar or playing a song like this.

Tell a friend. One way you can help us is by spreading the love. Tell your friends about what a good thing we’ve got going here. The more the merrier. And the healthier.

An article was released to the public stating that dental X-rays contribute to a type of brain cancer. After reading an article like this, your first thought may be to avoid dental X-rays, but you may want to hold off on that quick judgment. As with any treatment we offer at Kanawha City Pediatric Dentistry, education is your most valuable tool in deciding what is best for you.

How often dental X-rays are taken is based on risk for infection, physical symptoms, and clinical findings. The American Dental Association (ADA) is a governing body over the dental profession. The ADA states, “ . . . healthy adults receive routine mouth X-rays every two to three years. Dental X-rays are recommended every one to two years for children and every 1.5 to three years for teens. Children often require more X-rays than adults because of their developing teeth and jaws and increased likelihood for cavities.”

A "caries risk category" often determines how often dental X-rays are taken. The most recent documented resource to determine a caries risk is Caries Management by Risk Assessment (CAMBRA). This was adopted by the ADA and is used by dental professionals giving interval recommendations for X-rays.

With knowledge of your risk for dental infection, you will be informed by Drs. Don and Mindy of the interval at which dental X-rays should be taken. You can rest assured that the standards published by the ADA have been researched extensively and are there to protect your personal health and safety.

Dental X-rays are most commonly digital, which significantly reduces exposure. There is more radiation exposure from the sun or in an airplane than in a dental X-ray. It is common practice to use a lead apron with a thyroid collar for protection during X-ray exposure.

Having a cavity means having an active, potentially harmful infection. Diagnosing such infection with minimal exposure through digital dental X-rays at our Charleston office does more good than harm.

At Kanawha City Pediatric Dentistry, we love to celebrate the holidays with vigor! Drs. Don and Mindy would love to share some unique ways of celebrating Thanksgiving from beyond the Charleston area to the national level!

When Americans sit down to dinner on the last Thursday of November, the day that Abraham Lincoln designated as the day on which Thanksgiving would be celebrated, they do so thinking that the first Thanksgiving feast was held at Plymouth in 1621. According to National Geographic, the Spanish explorer Francisco Vásquez Coronado and his men celebrated a feast of Thanksgiving in Texas in 1541, giving Texas the distinction of being the first place where Thanksgiving was celebrated.

Different Types of Celebrations

Native Americans had rituals around which they celebrated in hopes of ensuring a bountiful harvest. The Cherokees had a Green Corn Dance that they did for this very purpose. The Pilgrims (not to be confused with the Puritans,) rejected any type of public religious display. They held a three-day long non-religious Thanksgiving feast. Although they said grace, the focus of their celebration was on feasting, drinking alcohol (they did have beer,) and playing games.

The Pilgrims at the Plymouth Plantation celebrated a different day of Thanksgiving in 1623. Plagued by a crop-destroying drought, the settlers prayed for relief. They even fasted. A few days later, they got the rain they so desperately needed. Soon thereafter, they received another blessing when Captain Miles Standish came with staples they couldn't otherwise get. He also told them that a Dutch supply ship was en route. In gratitude for the abundance of good fortune, the Plymouth settlers celebrated a day of prayer and Thanksgiving on June 30, 1623.

The Story of Squanto

No discussion of Thanksgiving is complete without a discussion of Squanto, or Tisquantum, as he was known among his people, the Patuxet Indians. It is believed that he was born sometime around 1580. As he returned to his village after a long journey, he and several other Native Americans were kidnapped by Jamestown colonist, Thomas Hunt. Hunt put them on a ship heading to Spain where they were to be sold into slavery.

As fate would have it, some local friars rescued him and many of the other kidnapped natives. Squanto was educated by the friars. Eventually, after asking for freedom so he could return to North America, he ended up in London where he spent time working as a ship builder. By 1619, he was finally able to get passage on a ship headed to New England with other Pilgrims.

Upon arriving at Plymouth Rock, he learned that his entire tribe was wiped out by diseases that accompanied earlier settlers from Europe. In gratitude for passage on their ship, he helped them set up a settlement on the very land where his people once lived. They called the settlement Plymouth. Since they knew nothing about how to survive, let alone how to find food, Squanto taught them everything, from how to plant corn and other crops, how to fertilize them, how and where to get fish and eels and much more.

After a devastating winter during which many settlers died, thanks to Squanto's teaching, they had an abundant harvest. After that harvest, they honored him with a feast. It is this feast of 1621 which was celebrated between the Pilgrims and Wampanoag Indians that is widely considered the first Thanksgiving celebration.

About the Meal of the Plymouth Settlers

Surviving journals of Edward Winslow that are housed at Plymouth Plantation indicate that the first Thanksgiving feast was nothing like what Americans eat today. The meal consisted of venison, various types of wild fowl (including wild turkey,) and Indian corn. There were no cranberries, stuffing, pumpkin pie, potatoes, or any of the other “traditional” foods that appear on modern menus.

Today, Thanksgiving is celebrated on the fourth Thursday of November, the day that Abraham Lincoln designated as the holiday. It is still a day of feasting, and for some, a day of prayer and thanksgiving. For others, it is a celebration of gathering, especially for families. Still others may celebrate in entirely different ways, including watching college football bowl games, or by playing family games.

If you ever wonder why you're so tired after the Thanksgiving meal, it's because turkey contains an amino acid, tryptophan, and it sets off chemicals whose chain reaction combine to make people sleepy.