136 E Broadway Bel Air, MD 21014 (410) 838-6222

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Posts for: January, 2015

By Broadway Oral and Maxillofacial Surgery
January 30, 2015
Category: Oral Health
Tags: x-rays   CAT scans  
HighTechDentistryHowDoWeUseaCATScan

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.

Contact us today to schedule an appointment or to discuss your questions about 3-D scans in dentistry. You can also learn more by reading the Dear Doctor article, “CAT Scans in Dentistry.”


By Broadway Oral and Maxillofacial Surgery
January 15, 2015
Category: Oral Health
MichaelDouglasPleaGetScreenedforOralCancer

Actor Michael Douglas shocked TV audiences across the country when he announced on the David Letterman Show in 2010 that he has stage IV oral cancer. Fortunately, the cancer had not spread and his radiation and chemotherapy treatments were successful. This year, Douglas teamed up with the Oral Cancer Foundation to warn others about the dangers of the disease and the importance of early detection. In particular, he wants younger people to know that even if they don't smoke and drink a lot, as he admitted to Letterman that he did, they are still at risk.

As Douglas states in a PSA he made with the foundation, “the fastest growing segment of the people developing oral cancers are young, non smokers.” That's due to a strain of the Human Papilloma Virus known as HPV16 that can be transmitted through oral sex. So it's important to avoid risky sexual behaviors and to be screened regularly for this devastating disease that claims one life every hour in the U.S., according to the Oral Cancer Foundation.

An oral cancer screening is a simple visual and tactile exam done right here at the dental office. We will feel your neck for lumps and inspect your lips and all inside surfaces of the mouth, including the back of your throat, for any suspicious signs. If any are found, a biopsy (laboratory analysis of a tissue sample) can be ordered.

Most oral cancers are “squamous” (small scale-shaped) cell carcinomas that occur in the lining of the mouth and are often preceded by recognizable changes (lesions) of the oral membranes. White or red patches begin to form in the pre-cancerous stage, and as the cancer develops, a non-healing ulcer may appear. If you notice any such changes in your mouth, please let us know.

Michael Douglas ends his PSA with the following plea: “So please, the next time you visit your dentist or your medical doctor, ask for this simple screening. Finding oral cancer in its earliest stages may save your life.” We agree, which is why we always perform this screening during your regular dental check-up. If it's been a while since your last appointment, please come in and see us.

If you would like more information about oral cancer, please contact us or schedule an appointment for a consultation. You can learn more about the disease in the Dear Doctor magazine article “Oral Cancer.”