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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 an orthodontic 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 raise concerns about tooth misalignment, especially when those extra teeth are molars. If double molars are causing crowding, it’s a good time for your child to have an orthodontic examination at our Richardson or Carrollton office to make sure the permanent teeth are properly positioned.

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 Drs. Hutcheson, Train, Goodall, Lewis for expert advice.

Crooked teeth, more correctly called malocclusions, have reached epidemic proportions in the late 20th and early 21st centuries. According to the American Association of Orthodontists, approximately 80 percent of American teenagers are currently undergoing orthodontic treatment. Although advances in orthodontic devices and increased availability of such devices explain part of this increase, it still means there are a lot of crooked teeth in the world.

The theories about what is causing so many crooked teeth range from the ridiculous to the scientific. For years, oral health professionals believed that crooked teeth were an evolutionary result of the change in Western diets from raw, wild foods to soft, processed foods. That theory has since been debunked.

The truth is that crooked teeth can be caused by a number of things. Crooked teeth can be an inherited trait. Parents with crooked teeth and malformed jaws are more likely to have children with malocclusions. Ill-fitting or poorly-executed dental restorations, such as fillings and crowns, can also cause teeth to become crooked. Baby teeth that fall out early, gingivitis, and even a jaw that is too small to accommodate all of a person’s adult teeth are additional causes of crooked teeth. In addition, thumb sucking and the use of a pacifier for too long can contribute to crooked teeth.

What to do about crooked teeth

Fortunately, modern orthodontics offers a number of solutions for crooked teeth. Traditional metal braces are the most popular, though our Richardson or Carrollton office provides a number of clear, aesthetic options as well. If you’re tired of hiding your smile because of crooked teeth, contact Drs. Hutcheson, Train, Goodall, Lewis and our team at Children's Dental Specialists and set up an appointment. We’ll have you showing off your straight pearly whites in no time!

It’s common for toddlers to be wary of strangers, but their first experience at the dentist shouldn’t be a scary one. Drs. Hutcheson, Train, Goodall, Lewis and our team have five tips for you to make your child’s first visit to Children's Dental Specialists easy as pie!

1. Bringing your child to one of your own appointments before his or her first dental visit can calm your little one’s nerves. This gives your son or daughter the opportunity to get familiar with our office and see a cleaning isn’t very scary.
2. Our big dental chair can be fun! Toddlers love games, and seeing the chair go up and down can make it seem like an amusement ride rather than sitting down for an exam.
3. Drs. Hutcheson, Train, Goodall, Lewis and our team hand out cool toothbrushes and stickers to kids after their appointment. Your child will love the fun-colored toothbrush and can look forward to a post-appointment prize at the next visit.
4. Schedule your appointment for a time that sets you up for success. Bringing your child to our Richardson or Carrollton office an hour before he or she is due for a nap may be a tantrum just waiting to happen.
5. Kids love books! Try reading your toddler bedtime stories about what happens at the dentist before you come in for the appointment. We recommend Dora the Explorer’s Show Me Your Smile, written by Christine Ricci.

Pediatric dentists strive to make your children’s visits welcoming and worry-free, and, we want the same for you! Ask us about any questions you might have. We are happy to explain procedures, equipment, and sedation options so you know just how safe and comfortable your child’s experience can be. And if X-rays are a concern, we can put your mind at ease here as well.

What Exactly Are X-rays?

Sometimes parents feel reluctant about the process of imaging because X-rays are a kind of radiation. But the fact is, radiation is all around us. We are exposed to radiation naturally from our soil and water, sun and air, as well as from modern inventions such as cell phones, Wi-Fi, and air travel.

Why is radiation so common? Because matter throughout the universe constantly gives off energy, and the energy that is emitted is termed radiation. This radiation takes two forms—as particles (which we don’t need to consider!) and as traveling rays. This second type is known as electromagnetic radiation, created by photons traveling in regular waves at the speed of light.

We are exposed to electromagnetic radiation every day, because, whether we can see them or not, these different wavelengths and frequencies create various forms of light. Radio waves, microwaves, infrared, visible, and ultraviolet light, X-rays, and gamma rays are all part of the electromagnetic light spectrum.

Different types of radiation on this spectrum have different wavelengths and different frequencies, and produce different amounts of energy. Longer wavelengths mean lower frequencies and less energy. Because X-rays have shorter wavelengths and higher frequencies than, for example, radio waves and visible light, they have more energy.

How Do Dental X-rays Work?

An X-ray machine produces a very narrow beam of X-ray photons. This beam passes through the body and captures images of our teeth and jaws on special film or digital sensors inside the mouth (intraoral X-rays), or on film or sensors located outside the mouth (extraoral X-rays). These X-ray images are also known as radiographs.

Why are X-rays able to take pictures inside our bodies? Remember that higher energy we talked about earlier? This energy enables X-rays to pass through the softer, less dense parts of our bodies, which are seen as gray background in a radiograph. But some substances in our bodies absorb X-rays, such as the calcium found in our bones and teeth. This is why they show up as sharp white images in radiographs. 

There are different types of common dental X-rays which are used for pediatric exams, including:

• Bitewing X-rays, which are used to check on the health of the back teeth.
• Periapical X-rays, which allow us to look at one or two specific teeth from crown to root.
• Panoramic X-rays, which use a special machine to rotate around the head to create a complete two-dimensional picture of teeth and jaws.

Why Do We Need X-rays?

If all of our dental conditions were visible on the surface, there would be no need for X-rays. But there are many conditions that can only be discovered with the use of imaging—infection, decay, or injuries, for example, can show up as darker areas in the teeth or jaws. Among their many diagnostic uses, X-rays can help us find:

• Cavities between teeth
• Damage to the tooth’s pulp which might require root canal treatment
• Injuries to teeth or roots after trauma
• Abscesses, tumors, or other conditions that might be causing swelling or pain
• Unusual position or development of the teeth before and as they erupt
• Alignment and development of wisdom teeth

X-rays can also serve an important preventative role, by discovering small problems before they become major ones.

How Do Dentists Make Sure Your Child’s X-rays Are as Safe as They Can Be?

First of all, the amount of radiation patients are exposed to with a dental X-ray is very small. In fact, a set of bitewing X-rays exposes us to slightly less than the amount of radiation we are exposed to through our natural surroundings in just one day. Even so, Drs. Hutcheson, Train, Goodall, Lewis and our team are committed to making sure young patients are exposed to as little radiation as possible.

Radiologists, the physicians who specialize in imaging procedures and diagnoses, recommend that all dentists and doctors follow the safety principal known as ALARA: “As Low As Reasonably Achievable.” This means using the lowest X-ray exposure necessary to achieve precise diagnostic results for all dental and medical patients.

The guidelines recommended for X-rays and other imaging have been designed to make sure all patients have the safest experience possible whenever they visit the dentist or the doctor. We ensure that imaging is safe and effective in a number of ways:

• We take X-rays only when they are necessary.
• We provide protective gear, such as apron shields and thyroid collars, whenever needed.
• We make use of modern X-ray equipment, for both traditional X-rays and digital X-rays, which exposes patients to a lower amount of radiation than ever before.
• We set exposure times based on each child’s size and age.

X-rays play an important part in helping us make sure your child’s teeth stay their healthiest. If you have any concerns, contact our Richardson or Carrollton office. When it comes to making sure you’re comfortable with all of our procedures, including any X-rays that might be necessary, we’re happy to give you all the inside information!