Posts for: May, 2018
The CAT scan is a relatively recent technique in dentistry, used to get an image of what’s happening deep within your jaws. You may be wondering what a CAT scan tells us that a conventional x-ray picture does not, and whether it is worth the extra expense to get one. And how does a CAT scan compare with a conventional x-ray in terms of radiation exposure?
CAT stands for “computer assisted tomography.” Often it’s just called a CT scan, for “computerized tomography.” The word “tomography” comes from roots meaning “slice” and “write.” Tomographic techniques take repeated two dimensional pictures, similar to repeatedly slicing through an object, and then assembles them with a computer to produce a three dimensional (3-D) image.
The latest type of CT scan used in dentistry is called CBCT, or Cone Beam Computed Tomography. The Cone Beam refers to a spiral beam of x-rays, which is used to create a series of two dimensional images from which a computer creates a 3-D image. Such an image is of great value in assessing problems and planning treatment.
Here are just a few examples of how a CBCT scan can be used. Orthodontists can see skeletal structures and developing teeth that are still inside the jawbone while planning strategies for directing the teeth in order to arrive at a better bite. Oral surgeons can find impacted or missing teeth, see their locations, and view their proximity to nerves and sinuses, assisting them in planning surgeries. These scans are particularly useful for root canal specialists because they show root canals that are less than a millimeter wide and even reveal accessory canals that may not be visible on conventional x-rays. In cases of sleep disorders such as sleep apnea, a CBCT during sleep can be used to view a person’s airway and how it may be blocked by the tongue and other soft tissues in a person’s throat during sleep.
Compared to background radiation, the amount of radiation delivered in dental x-rays is minimal. A CBCT delivers a dose of radiation that is less than a typical full mouth x-ray series but more than a typical two dimensional panoramic radiograph. Generally CBCT scanners deliver lower doses than medical CT scanners.
With one low-dose CBCT scan, we can get an accurate idea of the internal structure of your bones and teeth and how they are situated in relation to each other. Prior to the availability of such images, many of these relationships had to be discovered in the course of a surgery or other treatment. Thus such a scan can aid greatly in the quality of treatment you will receive.
What’s the first thing that comes to mind when you think of the month of May? Balmy breezes? Sweet-smelling flowers? How about root canal treatment?
The last item might seem out of place…but for the last ten years, Root Canal Awareness week has been celebrated in May. So let’s take a closer look at this important—and often misunderstood—dental procedure.
What we commonly call a “root canal” is a special treatment that can save diseased teeth which might otherwise be lost. But the root canal itself is actually a set of hollow, branching passages deep inside the hard outer tissue of the tooth. The tiny “canals” contain the tooth’s soft pulp, including nerves, blood vessels and connective tissue. These tissues help teeth grow during childhood but aren’t necessary in healthy adult teeth—and, what’s worse, they can become infected via deep cavity or a crack in the tooth’s outer layers.
When bacteria infect the pulp tissue, the inflammation often causes intense discomfort. In time, the harmful microorganisms can also pass through the tooth’s root and into the tissue of the jaw, resulting in a painful abscess. Eventually, if it isn’t treated, the tooth will likely be lost.
Root canal treatment is designed to remove the infection, relieve the pain…and save the tooth. It is usually performed under anesthesia for your comfort. To begin the procedure, a small hole is made in the tooth’s enamel to give access to the pulp; then, tiny instruments are used to remove the diseased tissue and disinfect the tooth. Finally, it is sealed up against re-infection. Following treatment, a cap (or crown) is often needed to restore the tooth’s full function and appearance.
Despite some rumors you may have heard, root canal treatment is neither very painful nor likely to cause other health problems. So if you come across these discredited ideas, remember that dentists and dental specialists called endodontists perform some 25 million root canal procedures every year—and this treatment method has been validated for decades.
Of course, like any medical procedure, root canal treatment is not 100% successful. While the procedure has a very high success rate, it’s possible that additional treatments will be needed in some cases. However, the alternative—extracting the tooth—has similar potential downsides; plus a replacement tooth will be needed to avoid the health and lifestyle troubles caused by missing teeth. But one thing is certain: Ignoring disease in the tooth’s soft tissues isn’t a good move, because the infection won’t go away on its own—and down the road it will only get worse.
So this May, while you’re taking time to smell the flowers, spare a thought for the often-misunderstood root canal. If you’d like more information on root canal treatment, please contact us or schedule a consultation. You can also learn more by reading the Dear Doctor magazine articles “A Step-By-Step Guide to Root Canal Treatment” and “Root Canal Treatment: What You Need to Know.”
Pregnancy creates enormous changes in your physical body. These changes, especially on the hormonal level, can impact many aspects of your health including teeth and gums.
While it’s easy to let dental care take a back seat to other health concerns, you should actually pay close attention to it while you’re expecting. Here are 4 things to focus on during pregnancy to avoid problems with your dental health.
Don’t avoid dental work unless otherwise advised. You may be concerned about undergoing dental procedures during pregnancy, especially those that involve anesthesia. But both the American Congress of Obstetricians and Gynecologists (ACOG) and the American Dental Association (ADA) encourage pregnant women to continue regular dental visits for cleanings and checkups. And unless your obstetrician advises otherwise, it’s usually safe to undergo dental work that can’t wait.
Be on the lookout for pregnancy gingivitis (gum disease). Because of the hormonal changes that occur during pregnancy, your gums could be more susceptible to gum disease caused by plaque buildup. That’s why you should be on alert for signs of a gum infection like swollen, reddened or bleeding gums. And be sure to practice diligent, daily brushing and flossing to remove disease-causing plaque, as well as regularly visiting your dentist for professional cleanings.
Make sure your diet is “tooth” friendly. Because of the changes in your body, you may experience food cravings that alter your normal dietary habits. So as much as possible, try to keep your food choices in line with what’s best for your teeth and gums: minimize your sugar intake (a prime food source for disease-causing bacteria); and focus on nutritiously balanced meals and snacks.
Keep your entire healthcare team informed. When you make your next dental appointment, tell your dentist you’re pregnant and how far along, any medications and supplements you’re taking, or any complications you may be experiencing. This information could have a bearing on how your dentist approaches any treatment. Likewise, let your obstetrician know about any issues with your teeth and gums, as well as any suggested dental work you may need.
If you would like more information on dental care during pregnancy, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Dental Care during Pregnancy.”