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What are Dental X-rays?

What most people call X-rays are actually X-ray photographs (also known as radiographs). An image is made using X-rays, which are similar to sunlight, but of a shorter wavelength, and able to show us what's below the surface of a tooth. Even though we call them X-rays, we are actually referring to the image created by X-rays.

Why are Dental X-rays Necessary?

X-rays are often the best way to identify problems that aren't externally visible. X-rays are very essential in doing a complete and thorough dental examination. They are especially important in diagnosing serious conditions early to allow for effective treatment before you experience discomfort. X-rays show bone anatomy and density, decay between the teeth or how extensive the decay is, whether an abscess is present, impacted teeth, or if children have permanent teeth.

x-ray cavity
x-ray prior
Cavities that start between the teeth can't be seen, but they can be detected on an X-ray.

No cavity on previous X-ray

This cavity was detected and filled before the patient felt any discomfort, and before the nerve became infected or the tooth became abscessed.

There is another cavity shown in the X-ray on the left. Can you find it? It's difficult for the untrained eye to spot. If you think you know where it is, send an e-mail to webmaster@stoffdent.com and we will tell you if you're right! (Hint: It's not the left edge of the top left tooth. That's just the edge of the frame around the X-ray).

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How Often Do I Need Dental X-rays?

The number and type of X-rays you will need depends on several factors such as age, current dental health, and external signs that may trigger a cause for concern. We are sensitive, however, to your concerns about exposure to radiation, and we only perform those X-ray procedures that are necessary for your continued dental health.

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Are Dental X-rays Safe?

Dental X-rays are very safe. They are taken at fast speeds with low radiation. A special lead apron is used to further reduce exposure. Everyone is exposed to a certain level of "background" radiation every day. Background radiation comes from many sources, including the sun. The amount of radiation from dental X-ray photographs (two views) is approximately equivalent to only two days of exposure to background radiation. In other words, you receive as much radiation in two days of normal activity as you do from two bite-wing X-ray photographs. If you are curious about panoramic X-ray photographs, they are equivalent to only about eight days of background radiation.*

If you have any questions or concerns about dental X-rays, feel free to discuss them with any of our staff. They are highly trained in the prudent and effective use of dental X-rays and share your concerns about exposure levels.

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*Source: British Journal of Radiology, 56, 511-516, 1983

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© Copyright - Dental WebSmith, Inc. and Mark T. Stoffregen, DDS. All rights reserved. Disclaimer: The information provided within is intended to help you better understand dental conditions and procedures. It is not meant to serve as delivery of medical or dental care. If you have specific questions or concerns, contact your health care provider.

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