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Educational and Entertaining Enamel Experiments

March 7th, 2024

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. Gregory Weaver know how your experiments turned out the next time you visit our Raleigh, NC office!

HPV and Oral Cancer

February 29th, 2024

Human papillomavirus, or HPV, is best known as a sexually transmitted infection. In the United States, HPV is the most common sexually transmitted disease, with 79 million Americans currently infected, according to the Centers for Disease Control and Prevention. In addition to increasing risk for cervical cancer, HPV is a contributing factor in some cases of oral cancer. Each year an estimated 1,700 women and 6,700 men develop oropharyngeal cancer, which affects the tongue and throat.

Connection between HPV and oral cancer

There are more than 40 strains of HPV that live in the skin and mucosal areas. Some of these affect the genitalia, while others are found in the mouth and throat. Of the strains of oral HPV, only one, called HPV16, increases the risk of oral cancer, the Oral Cancer Foundation reports. A retrospective study conducted found that oral cancer developed an average of 15 years after exposure to HPV, making it a relatively slow-growing form of cancer.

In general, 80% of Americans will have an HPV infection at some point in their lifetimes, while 99% develop no ill effects. Getting oral HPV is associated with multiple sexual partners and engaging in oral sex; however, even some individuals who have been with only one partner may contract the infection. Although overall risk of oral cancer from HPV infection is low, it is essential to be proactive about oral health.

How to prevent HPV-related oral cancer

Scientists continue to study how HPV infections lead to oral cancer, so little is known about the progression of the disease. However, one recent study found that poor oral health, including gum disease and poor oral hygiene, is associated with oral cancer risk. Thus, being vigilant about brushing and flossing your teeth regularly may reduce HPV-related oral cancer. Getting the HPV vaccine also protects against the oral form of the virus.

Another key way to reduce mortality from oral cancer is to have regularly scheduled appointments with at Weaver Dentistry. Having Dr. Gregory Weaver examine your mouth at least two times a year increases the likelihood that a sign of oral cancer, such as a sore or patch, will be detected. If you’re concerned about HPV-related oral cancer, please give us a call at our Raleigh, NC office for advice about oral hygiene and disease prevention.

How can veneers improve my smile?

February 29th, 2024

Dr. Gregory Weaver and our team at Weaver Dentistry know your smile is an important part of your appearance; it can be a source of pride or embarrassment. Everyone deserves beautiful, straight teeth that complement their features, but few are born with natural dental perfection. Fortunately, cosmetic dentistry has come a long way in recent years, with veneers making it possible to make over your smile completely.

With dental veneers, the smile of your dreams can become a reality. These thin, wafer-like shells are crafted of porcelain and completely customized to fit your smile. Once your tooth size, shape, and color have been determined, veneers are adhered to the surface of your natural tooth, instantly transforming your appearance. What used to be a secret of the rich and famous is now highly accessible to dental patients around the world.

Benefits of dental veneers

Appearance

Dental veneers are very natural in appearance and virtually undetectable to other people. Their non-porous surfaces make them resistant to staining, which ensures they do not change color over time.

Improvements

Dental veneers can be used to improve the appearance of many kinds of imperfections. In fact, an entirely new smile can be crafted from veneers, to cover up chipped teeth, discoloration, and gaps between teeth.

Durability

Veneers are long-lasting cosmetic enhancements that can survive many years with appropriate care and maintenance. They are specially fabricated to be resistant to scratches and chipping, which makes them a practical solution for the average person.

Flexibility

Dental veneers are highly adaptable. You can opt for only a single veneer to repair a chipped or cracked tooth, or you can modify multiple teeth at once for a smile makeover.

Considerations

Keep in mind that cosmetic treatments like dental veneers are secondary to primary dental care. You must have healthy teeth and disease-free gums to be a candidate for cosmetic procedures. An initial consultation at our convenient Raleigh, NC office will reveal any underlying decay or other problems that must be addressed prior to getting veneers. Give us a call today!

Foods can Wreak Havoc on Your Enamel

February 22nd, 2024

It’s possible to develop tooth decay even when you take great care of your teeth. Brushing and flossing may not be enough to keep your teeth healthy, depending on your diet. Cavities, discoloration, and decay are still possible when certain foods feature in your daily intake. Keep an eye out for foods that will damage your enamel and cause the very issues you’ve been trying to avoid.

What causes enamel damage?

Tooth enamel is the hard outer layer of your teeth that is made of various minerals. Tooth decay results when the acids in your food react with the minerals in your enamel. Strongly pigmented foods may also cause unsightly discoloration on the surface of your teeth. Avoid wreaking havoc on your beautiful smile by identifying the foods that can harm your enamel.

Acid

Acidic food is your teeth’s worst nightmare! This is the greatest cause of enamel damage, even if you brush and floss regularly. To avoid damaging your teeth, make sure you can determine whether a food is acidic or not.

The pH levels are a way to determine acidity on a one-to-seven scale. This defines the relative acidity or alkalinity of a food or substance. Foods with high pH levels are not as likely to harm your enamel.

It’s wise to avoid or minimize foods that are high in acids. Highly acidic food can include fruits such as lemons, grapefruit, strawberries, grapes, and apples. Moderately acid foods may surprise you; they include tomatoes, maple syrup, pickles, and honey.

Not surprisingly, eggs and dairy products such as milk and cheese contain the least amount of acid. Red wine and coffee can also discolor your enamel if they’re drunk in excessive amounts.

What can I do to prevent enamel damage?

There are plenty of ways to avoid discoloration and decay of your enamel. The best thing to do is limit the amount of high-acid foods, including sugary juices and soda, in your diet.

Another way is to brush and floss regularly, an hour after each meal. If you can’t make time to brush, an easy solution is to swish your mouth with water or mouthwash to rinse away any leftover acidic particles.

Damaged tooth enamel may be common, but is avoidable when you know which foods to stay away from and the steps to take after you do eat highly acidic foods. Take our advice and you’ll be sure to slow down any future discoloration and decay that happens in your mouth.

For more advice on protecting your enamel, give our Raleigh, NC a call to learn more!

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