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Educational and Entertaining Enamel Experiments

December 3rd, 2025

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. Irwin Seidman know how your experiments turned out the next time you visit our Palatine, IL office!

Smile! It’s Time for Arts & Crafts!

November 26th, 2025

If you have a child who loves arts and crafts, try some of these creative projects with a dental twist. One of these activities is sure to give your child something to smile about!

Toothbrush Art

Why throw away that used toothbrush when you can help your young child make art with it? Give it one more cleaning and a second life. The easy-to-grip handle and the wide bristles make a toothbrush easy for young hands to hold and paint with. If you are in an adventurous mood, use the brush to make splatter art. Your child can splatter an entire sheet of paper for an abstract effect, make a sky full of stars with a flick of the brush, or add splatter leaves to a tree scene. Cut out a stencil with a favorite shape (an animal, a flower, a toy), place it on a sheet of paper, splatter around it, remove the cutout, and—instant silhouette!

Paper Crafts

If your child is an origami enthusiast, there are some challenging dental-themed examples available online. These might be too advanced for beginners, but more experienced origami fans can make molars with roots and even molars lined with pink paper to symbolize the interior pulp. Younger paper artists might enjoy making construction paper models of an actual tooth, with white enamel, yellow dentin, and pink pulp layered in their proper order.

Sculpting Fun

For the scientifically minded young artist, clay can be used to make a 3D model of a tooth, with different colored clays representing the different layers of the tooth. Younger children learning about their teeth might enjoy fitting little white clay teeth into a pink clay crescent to show how baby (or adult) teeth fit into the gums. And for non-dental inspiration, old, clean toothbrushes can once again help out if your child likes sculpting art work with modeling clay. Add interesting texture by using the brush bristles on damp clay to create grooves, lines, or indentations.

Welcome the Tooth Fairy

If the Tooth Fairy is a regular visitor, make her welcome with a box decorated with paint or fabric to hold that special baby tooth. Or craft a pouch or a bag with fabrics scraps, and add a fabric tooth so that the Tooth Fairy will know she has come to the right spot. If you use felt and fabric glue, no sewing necessary! If your Tooth Fairy is an under-the-pillow traditionalist, decorate an envelope with a letter to the Tooth Fairy inside.

If some of these projects sound just right for your child, check out online craft sites for even more ideas. And, please be sure to have your children show and tell the next time they visit our Palatine, IL office. That will put a smile on our faces!

Are thumb sucking and pacifier habits harmful for a child’s teeth?

November 19th, 2025

Depending on how long the thumb sucking or constant pacifier use continues, and how aggressively the child sucks a thumb or the pacifier, it can indeed be an oral health issue. Generally speaking, most children outgrow these behaviors or are able to be weaned off them successfully sometime between ages two and four. When children wean off the behaviors in this age range, long-term damage is unlikely.

Why Kids Suck Their Thumb or Pacifier

Both of these habits are actually a form of self soothing that your child likely uses when he or she is very upset, or feeling stressed, confused, frustrated, or unable to properly express the emotions. If your son or daughters is a regular thumb sucker, or the child wants to use the pacifier almost constantly, it is best to try to taper off these habits at a young age.

If your child continues to suck a thumb or request a pacifier consistently after leaving toddler-hood, this could be a source of concern, and it should be addressed with Dr. Irwin Seidman and our staff. We will be able to evaluate your child's mouth to look for any signs of damage such as palate changes or teeth shifting.

Say Goodbye to Old Habits

In the event that your child is quite reluctant to give up a pacifier or thumb-sucking habit, there are a few things you can do to discourage these behaviors.

  • When you notice that your child is not using a pacifier or sucking a thumb, offer effusive praise. This type of positive reinforcement can be much more effective than scolding the child.
  • Consider instituting a reward system for giving up the habit. If the child goes a certain amount of time without this behavior, award him or her for being such a “big kid.”
  • Employ the help of older siblings or relatives that your child admires. When a child’s role model says that he or she stopped sucking thumbs at a certain age, your child is likely to try to emulate that.

Healthy Teeth and Healthy Gums Make a Great Team

November 12th, 2025

You know a lot about taking care of your teeth. You brush carefully twice each day, you floss, you (mostly!) eat healthy foods, and you see Dr. Irwin Seidman for checkups and cleanings. Good for you! These are some of the very best ways to make sure you don’t get cavities.

But it takes more than taking care of your teeth for good oral health. It also means taking care of your gums, because your teeth and gums are a team.

Clean and healthy gums and teeth work together. Our gums fit snugly around our teeth to help protect them from bacteria and other germs. And clean, plaque-free teeth are important for healthy gums. How? Let’s take a look.

Plaque forms all day long, and sticks to our teeth unless we brush and floss it away. The bacteria in plaque create acids. These acids make our tooth enamel weaker, which can lead to cavities. We don’t want cavities, and so we brush and floss to get rid of plaque.

But that’s not the only reason we clean our teeth well. Plaque is double trouble, because the bacteria in plaque also irritate our gums.

How do our gums react when they’re irritated? They turn darker pink or red, or they get swollen or sore, or they even bleed a bit when you brush. All these signs are symptoms of gingivitis, which is how gum disease begins. (And sometimes people can have gingivitis without any big symptoms at all.)

So, how do you make sure you keep your gums healthy? Just remember to include your gums while you’re doing all the things you already do to take care of your teeth!

  • Brush Well

Lots of people, including kids, get gingivitis, because it doesn’t take long for plaque to build up when we don’t brush often enough or carefully enough. Make sure to brush twice each day, and don’t forget to angle your toothbrush to gently brush along the gum line where your teeth and gums meet.

Gentle brushing is all you need for daily tooth cleaning. Rough brushing and hard bristles can hurt even tough tooth enamel, so you know they’re not good for your gums!

  • Floss Well

Flossing gets plaque that your toothbrush can miss. After all, it’s hard for bristles to squeeze in between those tight teeth. And flossing is especially important for your gums, because it removes plaque that is hiding near the gum line.

But figuring out the best way to floss teeth can be hard even for adults! Luckily, you have an expert to help you find out just how to use floss and just the right floss to use—your dental hygienist. When you have your teeth cleaned at our Palatine, IL office, ask about the easiest and best ways to floss for your own special teeth and gums.

  • Eat Well

All of the foods which are good for your teeth—milk, cheese, yogurt, fruits, vegetables—are good for your gums, too! And the foods which aren’t so great for your teeth—sticky, sugary foods—aren’t great for your gums, either. Sugar feeds the bacteria in plaque, and plaque irritates gums.

This doesn’t mean no treats ever. It does mean that it’s important to brush well after enjoying desserts, or chips, or candy, or any food that sticks around your teeth and gums after eating. And if you can’t brush, a drink of water helps wash away bits of food which are still hanging around.

  • See Your Dentist Regularly

Regular visits to Palatine Pediatric Dentistry can catch any gum problems before they become more serious. And, if you’ve been missing any spots when you brush and floss, your dentist or hygienist will let you know.

If you notice any signs of gingivitis—puffiness, redness, bleeding, or pain—tell a grownup right away. One of the fantastic things about the way our gums work is the fact that careful brushing and flossing are often all you need to make them healthy again! If you need more help, your dentist is the person who can treat gum problems to keep your smile feeling and looking great.

Work together with Dr. Irwin Seidman to make sure your teeth and gums are their healthiest. Just like healthy teeth and gums are a great team, you and your dentist make a great team, too!