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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.
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Cavities
that start between the teeth can't be seen, but they can be
detected on an X-ray.
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No cavity
on previous X-ray
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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@UtahPediatricDental.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 Does My Child Need Dental X-rays?
The number and
type of X-rays your child 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 their 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, your child receives as
much radiation in two days of normal activity as they 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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