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What is a crown?

October 22nd, 2025

If you have never had a crown before, you might be wondering why crown treatment is best, what the procedure involves, and which type of crown to choose. Let’s get down to the basics of crowns!

A crown is the best way to treat many dental conditions, either to strengthen and save the tooth or to improve its appearance. We might suggest a crown if you have any of the following conditions:

  • A filling that needs to be replaced, without enough tooth structure left to fill properly
  • A tooth that is fractured or broken, or so weak that it might fracture
  • A recent root canal
  • An implant
  • A bridge which needs a crown to serve as the base for attachment
  • A tooth that is discolored or irregularly shaped

On your first visit to our Creve Coeur or St. Charles office, Dr. Varble, Dr. Dill, and Dr. Wong will prepare the tooth that will be receiving a crown. A tooth might have to be built up if there isn’t enough of the original tooth left, or the top and sides of the tooth will be shaped down so that the crown fits smoothly and evenly with your other teeth. An impression will be made and sent to a dental lab so that a crown with the perfect fit for your tooth and mouth can be created. A temporary crown will be put in place to protect your tooth while the final crown is fabricated.

 The permanent crown is a cap which covers your tooth. It can be made of various materials, which all offer different advantages:

  • Metal Crowns—made of gold, platinum or base metal alloys, these are the longest lasting. Because of their metallic color, they are often chosen for back molars where they are less visible.
  • Porcelain Over Metal—because the color of the porcelain is matched to your natural teeth, these crowns look very realistic. Porcelain is more fragile than metal, so there is the possibility that they won’t be as durable.
  • Resin—less expensive than other options, but these crowns are more fragile and do not wear as well.
  • All Porcelain/All Ceramic—the most realistic looking option, especially for front teeth, and also suitable for anyone with a metal allergy. They are, again, not as strong as metal crowns, and can be subject to damage.
  • Stainless Steel—often used for baby teeth or as a temporary crown for adult teeth.

We’ll discuss your options and help you decide on the best type of crown for you. When the crown is finished at the dental lab, you will have one more visit where the crown will be secured in place. We will make sure your bite is comfortable and the color and appearance of the crown are satisfactory. We will also give you instructions for the next few days following the procedure, and can make adjustments if needed.

A crown is a perfect example of form and function working together: a crown maintains the beauty of your smile and preserves the health of your tooth. If you need a crown, we will be happy to talk to you about your best options for a strong, long-lasting, and natural smile.

Interproximal Cavities: The Inside Story

October 17th, 2025

Time to brush! So, you make sure you gently brush the plaque off the outside surfaces of your teeth. You want to present a gleaming smile to the world, after all. And you make sure to brush the inside surfaces as well, because who wants to feel a fuzzy patch of plaque every time their tongue hits their teeth? And, naturally, you remember to clean the tops of your molars, because those crevices make them more cavity-prone than any other surface.

Done? Not quite!

You might be surprised to learn that no matter how well you’ve brushed all the visible surfaces of your teeth, you’ve left quite a bit of enamel untouched—the adjoining, or touching, surfaces of the teeth which sit next to each other.

You’ve probably noticed that your bristles can’t . . . quite . . . reach all the enamel between your teeth (especially between your molars!) when you’re brushing. This means that food particles and plaque have an easier time sticking around. And when the bacteria in plaque are left undisturbed, especially with a banquet of food particles available, they produce acids which gradually eat away at the enamel covering our teeth, creating a cavity.

Here’s where we work in some specific dental vocabulary. “Interproximal” means between the adjoining, or touching, surfaces of the teeth. And an interproximal cavity is a cavity which develops on one of those side surfaces of your teeth.

  • Discovering Interproximal Cavities

Clearly, a cavity between the teeth won’t be as obvious as other cavities. How will you know if a dental appointment is in order?

There are typical symptoms which can show up when you have a cavity. Chewing might be painful. You might feel pain or sensitivity when you eat or drink something which is hot, or cold, or sweet. But pain and/or sensitivity aren’t always present, especially when a cavity is just beginning to develop.

Regular exams are important so you can catch small cavities before they become more serious. That’s why, at your regular dental exams, Dr. Varble, Dr. Dill, Dr. Wong, and Dr. Parks will always check for any signs of decay on every surface of each tooth, including those places which aren’t easily visible. And that’s why X-rays can be an important tool for locating these tricky cavities.

  • Treating Interproximal Cavities

If Dr. Varble, Dr. Dill, Dr. Wong, and Dr. Parks and our team finds a cavity between your teeth, there are different treatment options available depending on the size of the cavity:

  • A typical cavity will require a filling. The decay will be removed, and then the area will be cleaned and filled. You’ll probably choose a filling material which can be matched to your enamel color if the restoration will be noticeable.
  • If decay has spread to the pulp chamber inside the tooth, a root canal is often the best treatment option, with a crown applied afterward to protect the tooth.
  • A tooth so decayed or infected that it cannot be saved might require extraction.

Dealing with any weakness in a tooth as quickly as possible is always better than waiting until a more complicated treatment option is needed. Of course, the best treatment is prevention, and, luckily for us, it’s not a complicated process at all.

  • Preventing Interproximal Cavities

In fact, it’s about as basic as it can be—brush and floss effectively. We recommend brushing for two minutes at least twice a day and flossing once each day. While most of us are good about keeping up with brushing, sometimes that daily flossing is more a goal than a reality.

But it’s flossing which really does the trick when it comes to interproximal cleaning. If you floss correctly, food particles and plaque are removed from between the teeth and around the gumline—places where bristles just can’t reach. The next time you get your teeth cleaned at our Creve Coeur or St. Charles office, ask for tips on how to perfect your technique. And, if you have difficulty flossing, ask about alternatives such as water flossers and interproximal brushes.

Preventing cavities on the exterior surfaces of your teeth is probably pretty much automatic by now, but don’t forget the potential for stealth decay! If Dr. Varble, Dr. Dill, Dr. Wong, and Dr. Parks and our team find signs of erosion on the sides of your teeth, or if your hygienist lets you know that you’ve got a lot of interproximal plaque buildup, work with us to make sure “interproximal cavity” doesn’t become a working part of your dental vocabulary.

Are you a tooth grinder?

October 17th, 2025

Perhaps you had a particularly irritating commute home from work, and you realize at the end that your jaw was clenched tight the entire time. Or maybe you grind your teeth when you are nervous or anxious about an upcoming business meeting. Most people grind their teeth from time to time, but it’s important to recognize the signs and symptoms of chronic tooth grinding. Known as bruxism, this condition can lead to oral health problems and dental issues later.

Signs and symptoms of bruxism

  • Your partner might complain about the fact that you grind your teeth while you sleep. People who grind their teeth on a regular basis often do so during the night, and aren’t necessarily aware it is happening. However, your partner will more than likely notice if you develop this condition. If he or she mentions that it happens often, you might want to contact our team at Dentistry for Children.
  • You may experience a persistent and unexplained headache if you grind your teeth too often. You may not realize why you have this headache, because you are not aware of the fact that you have been grinding your teeth. Take note of any headaches you have, and if you cannot attribute them to another source, please give us a call to set up an appointment with Dr. Varble, Dr. Dill, Dr. Wong, and Dr. Parks.
  • Your jaw will more than likely become sore if you suffer from bruxism. If you wake up in the morning and have any discomfort in your jaw, you might have spent the night grinding your teeth. Our team can give you tips and advice for managing bruxism.

While many people associate their teeth grinding with stress, it actually is caused more often by crooked teeth, an overbite, or an under bite. If left untreated, bruxism can lead to a variety of complications, including dental injuries, hearing loss, and the onset of TMD. If you think that you might be a chronic tooth grinder, it might be time to set up an appointment at our Creve Coeur or St. Charles office in order to find out which treatment options are available to you.

October is National Dental Hygiene Month: A simple oral health routine for your busy lifestyle

October 16th, 2025

Adults are no strangers to feeling like there is never enough time in the day to get everything done. Your alarm clock rings and within minutes you ping pong around trying to spread peanut butter on sandwiches, answer your cell phone, remove the dog hair from your clothes, and make sure your child has completed his or her science fair project. Brushing your teeth can easily fall to the wayside. That is why our office promotes a simple, daily oral health regimen that you can easily incorporate into your busy lifestyle.

The American Dental Hygienists' Association (ADHA), in partnership with the Wrigley Jr. Company, is celebrating National Dental Hygiene Month (NDHM) during October. The ADHA encourages people to "Brush. Floss. Rinse. Chew...Keep it Clean, Keep it Healthy!" and offers some great tips for a quick and effective home oral health routine, below:

Oral Health Routine at Home

  • Brushing your teeth twice daily is the most important thing you can do to diminish the accumulation of plaque and the potential for other oral problems such as cavities and gingivitis.
  • Flossing once daily removes plaque and food from beneath the gums and between teeth that brushing alone cannot remove. Tooth decay and gum disease often begin in these areas.
  • Rinsing your mouth with an antibacterial, non-alcohol based mouthwash kills plaque and gingivitis germs that brushing and flossing do not catch. We recommend using a mouthwash with the ADA Seal of Acceptance.
  • Chewing sugar-free gum helps produce saliva, which battles cavities. The gum also neutralizes plaque, strengthens enamel, and removes remaining food. It is especially important to chew gum after eating or drinking.

It's easy to put the toothbrush down in order to take care of matters you feel are more urgent, but remember, a good oral health routine at home is the best way to prevent periodontal disease. "Periodontal disease is the most common cause of tooth loss in adults. An estimated 75 percent of Americans reportedly have some form of periodontal disease," said the ADHA. Periodontal disease also is linked to more serious illnesses such as diabetes and stroke.

Also, remember to keep regular visits with our office. Dr. Varble, Dr. Dill, Dr. Wong, and Dr. Parks can help you learn more about proper care for your teeth and gums.