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Educational and Entertaining Enamel Experiments

November 29th, 2023

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. Bates know how your experiments turned out the next time you visit our Colonial Heights office!

Teeth Whitening and Your Smile

November 29th, 2023

The best type of whitening for your smile depends on what you are hoping to accomplish.

Whitening Toothpastes

This is certainly the easiest method of whitening, but will brushing alone produce your whitest smile? Probably not. Whitening toothpastes use chemicals and abrasives to remove some surface stains caused by foods, beverages and smoking. They can also be used to maintain the appearance of your teeth after a professional whitening. However, toothpaste alone cannot change the natural color of your teeth or penetrate the surface of the tooth to remove deeper stains. A whitening toothpaste usually takes several weeks to produce results. Be sure to choose a product with a seal of approval from a reputable dental association and carefully follow the instructions for use.

Whitening Strips and Gel Trays

Whitening gels can be applied at home with strips or tray kits. These peroxide-based gels are stronger than the formulas used in toothpaste.

Strips come coated with the whitening gel and work when pressed to your teeth for a specified amount of time. One difficulty here is making sure each tooth is completely covered by the strip so that even whitening takes place. Tray and gel whitening systems provide a mouthguard-like appliance that is filled with whitening gel and applied to your teeth, again for a specific period of time. Because one size does not fit all, stock trays can be ill fitting and lead to problems with gums and soft tissue. You can talk to our team about a custom-fitted appliance and whether gel whitening is your best option.

Some users find gel products cause tooth and gum sensitivity and even enamel damage. These over-the-counter gel products will not work on caps, veneers, crowns, or bridges, and there might be underlying conditions in your natural teeth that will make the use of these products ineffective. Please talk to us at your next visit to our Colonial Heights office if you are interested in whitening at home, so we can advise you on how to achieve the best and safest outcome.

Office Treatment

Professional whitening makes use of a gel with a higher concentration of peroxide and should only be provided by Dr. Bates or a member of our team at our Colonial Heights office. This process is generally faster, more effective and longer lasting. We take care first to examine your teeth for pre-existing conditions such as cavities and gum disease that could cause problems. We protect your gums when the gel is applied in office and monitor the procedure. We can assess the progress of the whitening and suggest further treatment if needed. Custom mouthpieces can also be an option if you would like to use a whitening gel at home. A personally molded tray will fit your teeth perfectly and allow a more precise application of the peroxide gel.

Some teeth are not good candidates for normal whitening procedures at home or in office. If you have dark stains caused by trauma, drugs such as tetracycline, discoloration due to root canals, or darker dental bonding, crowns, or other prosthetics, please talk to us about other possible solutions. We want to help you achieve your brightest possible smile.

Infant Teething Remedies: What Might Help—And What to Avoid

November 22nd, 2023

Some lucky babies wake one morning displaying a brand new tooth to the complete surprise of their unsuspecting parents! But your happy baby is irritable and drooling. Or your hearty eater doesn’t feel like finishing her food. Perhaps she finds it hard to go to sleep when she’s usually nodded off before you finish the first lullaby. A small number of children suffer little or no discomfort teething, but for the majority of babies who do, here are some helpful ways to ease their teething pain.

  • Massage--Rubbing your baby’s gums with a clean finger or piece of gauze—gentle pressure is all you need. And do be careful of your fingers once those teeth start coming in!
  • Chewing—there are many colorful and easy to grasp teething toys available, including BPA-free models.
  • Cool Relief—Cool a solid teether in the refrigerator to help ease discomfort. Placing a teething ring in the freezer is not recommended, as extreme cold can be damaging to little mouths and gums.
  • Comfort Food—If your baby is eating solid foods, try cold applesauce or other purees.
  • Skin Care—Drooling is often part of the teething process, but try to keep your child’s face free from rash and chaffing by wiping with a clean cloth when necessary.

And while you are trying to keep your baby comfortable, also be sure to keep her safe!

  • Know what your baby is putting into her mouth. All teething items should be non-toxic and free of harmful chemicals. Teethers filled with fluids may break or leak, so a solid toy is best.
  • Make teething items size-appropriate. Avoid anything small or breakable that might present a choking hazard.
  • Over-the-counter gels and liquids containing benzocaine, meant to reduce pain in the gums and mouth, may on rare occasion lead to serious health conditions in small children. Always check with Dr. Bates or your pediatrician before buying an over-the-counter teething medication for your baby.

For many babies, teething can be a long and sometimes difficult process. If there is anything we can do to help you and your baby in this journey, please give our Colonial Heights office a call.

Tooth-Colored Fillings

November 22nd, 2023

Once upon a time, silver fillings ruled in dental offices everywhere. For a long time, they were the only option dentists used to close off the spaces on teeth where bacteria could easily enter.

Most patients did not regard a pearly white and silver smile as something to be super excited about. Luckily, we have a range of more aesthetically pleasing options today. The most common material used for fillings now is composite, also known as tooth-colored fillings.

Composite fillings are made to match the shade of your teeth, so they offer a seamless addition to your smile. They even let light travel through them the same way that natural enamel does. Composite fillings are great because they erase imperfections and can even reshape your teeth by minimizing excessive spacing. If you have a gap between your two front teeth, for example, a composite filling is an easy, non-invasive, and most important, cost-effective way to give you the instant fix you desire.

Overall, tooth-colored fillings make an easy choice all around. Easily placed, readily repaired, and well disguised. In a world where a perfect smile seems to have become standard for everybody, why not get composite fillings for yourself?

You can smile with the confidence of knowing that nobody will spot a shiny silver thing in your mouth. Visit our Colonial Heights office to get a consult or give us a call! We’re always happy to answer your questions.

richard w bates, dds
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