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Dental X-rays: The Inside Story

December 10th, 2025

We’re all friends here, so if you sometimes feel a bit nervous before your dental appointment, no judging! Ask us about any worries you might have. We are happy to explain procedures, equipment, and sedation options so you know just how safe and comfortable your 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 patients 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 a number of reasons:

  • 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.
  • Occlusal X-rays, which show the entire arch of teeth in the upper or lower jaw.
  • Panoramic X-rays, which use a special machine to rotate around the head to create a complete two-dimensional picture of teeth and jaws.
  • Cone Beam Computed Tomography, an external device which uses digital images to create a three-dimensional picture of the 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, a decrease in bone density, 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 or under old fillings
  • 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
  • Position and development of wisdom teeth
  • Ideal placement for implants
  • Health and density of the jaw and alveolar bone

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

How Do Dentists Make Sure Your X-rays Are As Safe As They Can Be?

First of all, the amount of radiation you 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, Dr. Mark Goedecke and our team are committed to making sure 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.
  • When treating children, we set exposure times based on each child’s size and age.

And now that we’ve talked about some things you might like to know,

Please Let Us Know If . . .

  • You’re a new patient, with previous X-rays taken during regular exams or for specific procedures. Ask to have your older X-rays sent to our office. With digital X-ray technology, this transfer can be accomplished with e-mail! Having your dental history available lets us notice any changes that have taken place.
  • You’re pregnant, or think you might be pregnant. Even though radiation exposure is very low with dental radiographs, unless there is a dental emergency, dentists and doctors recommend against X-rays for pregnant patients.

X-rays play an important part in helping us make sure your teeth stay their healthiest. If you have any concerns, contact our Mt. Pleasant 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!

Three Surprising Causes of Bad Breath

December 3rd, 2025

Rumor has it that the Queen of England doesn’t allow garlic in the palace. And, even if you have no royal duties in the near future, it might be a good idea to avoid foods like garlic and onion before a big presentation or a first date. But if your diet is filled with mint, fresh apples, and parsley and you still worry about your breath, here are some common causes for bad breath that you might not have considered.

  • A Slip of the Tongue

We brush and floss to remove food particles and bacteria. After all, bacteria that linger in the mouth produce acids that damage tooth enamel and cause bad breath. But there is one important brushing target you might be overlooking—your tongue.

Remove food particles and bacteria on the surface of the tongue with a gentle brushing after you have finished cleaning your teeth. With a dab of toothpaste, brush the top of your tongue gently from back to front. There are also tools called tongue scrapers available that are specifically designed to remove food particles and bacteria from the tongue’s surface. However you choose to clean your tongue, remember to move from the back to the front, and always clean gently.

  • A Dry Spell

We spend the vast majority of our day not brushing our teeth. What helps keep breath fresh even during the hours between brushings? Saliva! As saliva bathes the teeth throughout the day, it not only washes away food particles and bacteria, but also neutralizes the enamel-damaging acids that are produced by bacteria. Yet another benefit? Saliva is not a friendly environment for the oral bacteria that produce volatile sulfur compounds (VSCs). It is these compounds that cause most of the unpleasant odors we know as bad breath.

If you are drinking the recommended amount of water each day, you are helping your body produce saliva and fight bad breath. Sometimes, a medical condition called dry mouth, or xerostomia, interferes with saliva production. Talk to Dr. Mark Goedecke about ways to deal with dry mouth. Solutions as simple as drinking more fluids or chewing sugarless gum can help, or we can suggest over-the-counter products or prescription medications if needed.

  • A Bad Night’s Sleep

We’re all familiar with the concept of morning breath. As we sleep, our saliva production naturally decreases. It’s like a nightly version of dry mouth. Without normal levels of saliva, bacterial growth takes off, VSC’s are produced in greater quantities, and we wake up wondering what on earth happened to that fresh feeling we had after brushing the night before.

Unfortunately for snorers, nighttime brings more problems. Snoring leads to mouth breathing, and mouth breathing creates an even drier environment where oral bacteria increase more quickly. If you find you are consistently waking up with an especially unpleasant case of morning breath, you could be a chronic snorer without even realizing it. If you discover or suspect you have a snoring problem, talk to Dr. Mark Goedecke or your GP. Snoring can have serious health consequences, so let’s discuss possible solutions.

One important note to end on: if you have eliminated all the obvious causes of halitosis but still have persistent bad breath, give our Mt. Pleasant office a call. Chronic bad breath can be a symptom of serious gum disease, oral infections, illnesses such as diabetes or kidney disease, and other medical conditions that should be treated as soon as possible. If the topic is bad breath, let’s make sure garlic is the only thing you have to worry about.

Forget Something? It’s on the Tip of Your Tongue!

November 26th, 2025

Let’s see…

Toothbrush? Check.

Fluoride toothpaste? Check.

Floss? Check.

Two minutes of thorough brushing? Check.

Careful cleaning around your brackets and wires? Check.

Wait… there’s something else… it’s right on the tip of your…

Ah! Your tongue! Whenever you brush, morning, evening, or any time in between, if you want the freshest breath and cleanest teeth, don’t forget your tongue.

Why your tongue? Because the tongue is one of the most common sources of bad breath. Let’s examine just why this occurs.

The tongue is made up of a group of muscles that help us speak and chew and swallow. But there’s more to this remarkable organ than mere muscle. The surface of the tongue is covered with mucous membrane, like the smooth tissue which lines our mouths. But the tongue isn’t completely smooth—it’s textured with thousands of tiny bumps called papillae.

These little elevated surfaces have several shapes and functions. Some make the tongue’s surface a bit rough, which helps move food through your mouth. Some are temperature sensitive, letting you know that your slice of pizza is much too hot. And some are covered with thousands of the taste buds, which make eating that pizza so enjoyable.

All of these papillae with their various functions combine to create a textured surface, filled with miniscule nooks and crannies. And if there’s a nook or a cranny where bacteria can collect, no matter how miniscule, it’s a good bet that they will, and the surface of the tongue is no exception. But bacteria aren’t alone—the tongue’s surface can also hide food particles and dead cells.

How does this unappealing accumulation affect you? These elements work together to cause bad breath, especially the bacteria that break down food particles and cell debris to produce volatile sulfur compounds—compounds which create a particularly unpleasant odor. Including your tongue in your brushing routine helps remove one of the main causes of bad breath.

And that’s not the only benefit! Cleaning the tongue helps eliminate the white coating caused by bacterial film, and might even improve the sense of taste. Most important, studies show that regular cleaning noticeably lowers the levels of decay-causing plaque throughout the mouth.

So, how to get rid of that unwanted, unpleasant, and unhealthy debris?

  • When you’re done brushing your teeth, use your toothbrush to brush your tongue.

Clean your tongue by brushing gently front to back and then side to side. Rinse your mouth when you’re through. Simple as that! And just like a soft-bristled toothbrush helps protect tooth enamel and gum tissue, we also recommend soft bristles when you brush your tongue. Firm bristles can be too hard on tongue tissue.

  • Use a tongue scraper.

Some people find tongue scrapers more effective than brushing. Available in different shapes and materials, these tools are used to gently scrape the surface of the tongue clean of bacteria and debris. Always apply this tool from back to front, and rinse the scraper clean after every stroke. Wash and dry it when you’re through.

  • Add a mouthwash or rinse.

As part of your oral hygiene routine, antibacterial mouthwashes and rinses can assist in preventing bad breath. Ask Dr. Mark Goedecke for a recommendation.

  • Don’t brush or scrape too vigorously.

Your tongue is a sturdy, hard-working organ, but tongue tissue is still delicate enough to be injured with over-vigorous cleaning.

Taking a few extra seconds to clean your tongue helps eliminate the bacteria and food particles which contribute to bad breath and plaque formation. Make this practice part of your daily brushing routine—it’s a healthy habit well worth remembering!

Five Things You Didn't Know About Cavities

November 19th, 2025

Most people know when they have a cavity—they can either see it on their tooth or... ouch! They can feel it! But there are certain things that many of our patients don't know about cavities that could save them a trip to our Mt. Pleasant office!

1. Not all sugars are created equal

It's quite well known that eating dietary sugars in excess along with poor oral hygiene leads to dental decay such as cavities. This is due to the fact that the bacteria in your mouth feed on these sugars and excrete acids as a byproduct of that process, thus causing decay. But xylitol, a sugar alcohol derived from birch or corn, actually prevents the bacteria from converting sugars into acids.

Xylitol is available in the form of gum, mints, toothpaste, and even in a granulated form much like regular cane sugar. You might consider trying some xylitol products between meals to keep your mouth clean and fresh.

2. It's not always what you eat but HOW you eat

Are you a grazer, always snacking between meals and never satisfied? We now know that this kind of eating can contribute to cavities and other oral health problems.

Every time you eat anything with carbohydrates in it, you're feeding the bacteria in your mouth, which in turn produce acids. If you're constantly eating, it doesn't allow your saliva time to bring the pH of your mouth back into a more alkaline, neutral state. It takes your saliva about 20 minutes to neutralize the acids in your mouth after eating.

It's especially easy to harm your teeth in this way with soft drinks, sipping all day long. So, it's best to avoid sugary drinks and junk food, and if you need a snack opt for healthy vegetables or what are known as "detergent foods." If you do decide to drink a soft drink or eat something sugary, have it all at once and not over the course of the day.

3. Flossing is one of the most important oral hygiene techniques

Although most of our patients are aware that they need to brush, sometimes they can get lackadaisical when it comes to flossing. And that's a big mistake. Flossing is one of the most important (and we daresay, easiest) things someone can do to help prevent cavities and tooth decay.

You see, as we've already mentioned, the bacteria in your mouth that cause cavities feed on the food you eat. So if you've got pieces of that food stuck between your teeth all day and night, every day, that's asking for a problem.

Flossing clears that bacteria-feeding food out from between your teeth. Floss daily and whenever you decide to do it, morning or night, just do it!

4. A dry mouth can lead to cavities and tooth decay

Your teeth's best defense against cavities and tooth decay is actually your saliva! We've already talked about the pH neutralizing effect saliva has. So if you find you have a dry mouth often, make sure to have some water to sip on. Or why not try some xylitol mints or gum to get your saliva production kicked into action?

5. Over-brushing can damage your enamel

If you brush like a construction worker with a jackhammer, you should ease up! Brushing too hard can scrape away at your teeth's enamel, which leaves them more susceptible to cavities and decay. Brush lightly, with your brush angled at the gum line for two minutes, twice a day. That's all that is required!