X-Rays
How do dental X-rays work?
When X-rays pass through
your mouth during a dental exam, more X-rays are absorbed by the denser
parts (such as teeth and bone) than by soft tissues (such as cheeks and
gums) before striking the film. This creates an image on the radiograph.
Teeth appear lighter because fewer X-rays penetrate to reach the film.
Tooth decay, infections and signs of gum disease, including changes in
the bone and ligaments holding teeth in place, appear darker because of
more X-ray penetration. Dental restorations (fillings, crowns) may
appear lighter or darker, depending on the type of material used for the
restoration. The interpretation of these X-rays allows the dentist to
safely and accurately detect hidden abnormalities.
What are the benefits of a dental X-ray examination?
What are the benefits of a dental X-ray examination?
Many diseases of the teeth and surrounding tissues cannot be seen when
your dentist examines your mouth. An X-ray examination may reveal:
small areas of decay between the teeth or below existing restorations
(fillings)
infections in the bone
periodontal (gum) disease
abscesses or cysts
developmental abnormalities
some types of tumors
Finding and treating dental problems at an early stage can save time,
money and unnecessary discomfort. It can detect damage to oral
structures not visible during a regular exam. If you have a hidden
tumor, radiographs may even help save your life.
What if I'm pregnant and need a dental X-ray?
An X-ray may be needed for dental treatment or a dental emergency that
cant wait until after the baby is born. Untreated dental infections can
pose a risk to the fetus, and dental treatment may be necessary to
maintain the health of the mother and child. Radiation from dental
X-rays is extremely low. However, every precaution is taken to minimize
radiation exposure. A leaded apron minimizes exposure to the abdomen and
should be used when any dental X-ray is taken. A leaded thyroid collar
can protect the thyroid from radiation, and should be used whenever
possible. The use of a leaded thyroid collar is strongly recommended for
women of childbearing age, pregnant women and children. Dental
radiographs are not contraindicated if one is trying to become pregnant
or is breast feeding.