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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. Venetia Laganis know how your experiments turned out the next time you visit our Maple Grove office!

It seems like sharks are everywhere these days—on land, sea, and air(waves). A halftime show meme gone viral. A week of summer TV devoted to our favorite apex predators. And who doesn’t have “Baby Shark” playing in their heads all day once they’ve heard it? But are we jumping the shark to discuss this topic in a dental blog?

Not at all! Because today, we’re going to talk about shark teeth—just not the ones you might be expecting.

One of the expected sights when a shark opens its mouth are those rows and rows of shiny shark teeth. Sharks can grow from two to 15 rows of teeth at any one time (and some sharks have even more). This means sharp new teeth are always ready to replace any shark tooth which is lost, broken, or worn out.

An unexpected sight? When children point to their new adult tooth or teeth coming in—right behind their still-firmly rooted baby teeth! This double set of teeth is called “shark teeth,” and, while it certainly might come as a surprise, it’s not all that uncommon. But why do children develop shark teeth at all?

After all, baby, or primary, teeth have small roots, and are designed to come out easily when the adult teeth start arriving. When a permanent tooth starts to erupt, it pushes against the root of the baby tooth above it. This pressure gradually dissolves the root of the primary tooth, and with nothing to anchor it, it’s now loose, wiggly, and ready to fall out. That’s why baby teeth often look like they have no roots at all when they eventually wiggle free.

Sometimes, though, the roots of a primary tooth don’t break down, which means baby teeth stay right where they are. It also means that the permanent teeth have to erupt somewhere else—usually behind those stubborn little baby teeth.

Shark teeth can first appear around the ages of five to seven when the permanent front teeth start arriving, or several years later, when the adult molars begin to come in. Any extra teeth in one small jaw naturally cause concerns about crowding and misalignment, especially when those extra teeth are molars. Fortunately, treatment is generally uncomplicated.

If the baby tooth is loose, time (and wiggling) might take care of the problem. But if the primary tooth or teeth just won’t budge, even after several weeks, it’s a good idea to schedule a visit with Dr. Venetia Laganis—especially if your child is experiencing pain or discomfort.

An extraction is often suggested when a baby tooth has overstayed its welcome. Because of its smaller root, extracting a primary tooth is usually a straightforward procedure. Dr. Venetia Laganis can let you know all the details, and can discuss sedation options if they’re appropriate for your child.

Whether baby teeth are left to fall out on their own, or given some assistance, most often your child’s permanent tooth will start moving to its proper position as soon as the space is available.

Unlike sharks, we don’t have an endless supply of replacement teeth, so it’s understandable to worry when you see anything unexpected. If you want to know more about shark teeth, or if you have any concerns, don’t hesitate to call our Maple Grove office for expert advice.

Dr. Venetia Laganis and our team at Laganis Pediatric Dentistry know that periodontal disease isn't something exclusive to adults. It can affect adolescents as well. Gingivitis, which is a milder form of periodontitis, is a form of periodontal disease, and a warning that more serious problems may arise. Untreated gingivitis can develop into full-blown periodontitis.

The American Academy of Periodontology (AAP) explains that research proves that younger people may develop more severe forms of gingivitis. Gingivitis is linked to periodontal disease. Children and adolescents who have type 1 diabetes or immune deficiencies are more likely to suffer from periodontal disease.

There are three types of periodontal diseases Dr. Venetia Laganis and our team see in children and adolescents.

Chronic gingivitis

Parents may suspect that their adolescent has chronic gingivitis if he or she shows or complains of symptoms such as redness, swelling, or bleeding gums. Early treatment may prevent gingivitis from developing into a more severe form of periodontal disease.

Aggressive and/or chronic periodontitis

Once called adult periodontitis, the term chronic replaces “adult” because periodontitis can occur in people in their early teenage years, and progress throughout their teens. Chronic and aggressive periodontitis primarily affects incisors and first molars. One of its distinguishing characteristics is bone loss. Curiously, patients who suffer from this form of the disease have minimal dental plaque on examination.

Generalized aggressive and chronic periodontal disease

This form of periodontal disease has many of the same characteristics of the chronic and aggressive form, but this more severe type of the disease affects the entire mouth. Symptoms include major plaque and calculus accumulation, and inflamed gums.

In both forms of more severe periodontal disease, the overall gum structure may change. The severity of these changes may alter gum strength enough to loosen teeth, or even worse, cause them to fall out.

The success of any treatment is largely contingent on early diagnosis. Dr. Venetia Laganis should conduct a thorough periodontal exam as part of an adolescent’s twice-yearly complete dental examinations.

The mouth is full of bacteria. Some of it is necessary for food digestion. Diseases are more likely to develop if bacteria travel to open places in the mouth, such as exposed gum pockets or cavities. Proper dental hygiene is essential for a healthy mouth, and a healthy mouth offers greater protection against painful dental diseases.

Be sure every member of your family has a complete dental exam and cleaning twice a year, and contact Dr. Venetia Laganis when you or your young kids or adolescents complain of pain, sensitivity, or other oral problems. Early detection at our Maple Grove office leads to treatment of oral problems and prevents them from turning into serious periodontal disease and potentially irreversible problems.

Our team at Laganis Pediatric Dentistry would like to offer some tips regarding the sometimes dreaded task of brushing a toddler’s teeth.

Much of the trick lies in the positioning. Before you begin, make sure you are in a position of control. This protects both you and your child from injury. Consider how well you can see. If you cannot see clearly, the quality of brushing drops significantly. For instance, if your child is standing, you are likely to see only the bottom teeth well.

Our team finds that the best position for brushing and flossing a toddler is when your child is calm. Have your child lie down on his or her back with arms out to make a T. Sit down just above the head and lightly place your legs over your child’s arms. Using a circular motion, brush all sides of the teeth.

It may sound odd, but approaching the routine this way can make brushing time a cinch! After you’re done, give your child the toothbrush and let him or her have a turn. The benefit of doing the brushing and flossing first is that it gives an example, which your child is more likely to repeat when you’re done.

Different methods work best for different families and children. These practices need to be performed with kindness and care. Be gentle and make this time a happy learning time. Don’t forget to bring your child to our Maple Grove office for regular dental checkups and cleanings. Dr. Venetia Laganis can advise you on ways to implement portions of these tips in a way that may work bests for you and your child.