X-Rays

Do I really need X-Rays? Yes, X-Rays are necessary for proper diagnosis and treatment planning.  They are needed for diagnosing:

  • Abscesses and infection
  • Decay between the teeth and under existing restorations
  • Periodontal (gum) disease
  • Cysts & tumors
  • Root Canal treatment
  • Dental Implant placement

The tables below give dose estimates in millirems (mrem) for typical diagnostic radiology exams.  The annual maximum allowable radiation dosage for healthcare workers is 5000 millirems.  Dental x-rays are at the lowest end when it comes to effective dose.

Doses Received Undergoing an Entire Procedure

Complete Exams

Effective Dose, mrem

PTCA (heart study)

Coronary angiogram

CT (head and chest)

CT abdomen

Mammography: breast examination

Barium enema (10 images, 137 sec fluoroscopy)

Intravenous Pyelogram (kidneys, 6 films)

Lumbar spine series

Thoracic spine series

750-5,700

460-1,580

1,110

1,000

1000

700

250

180

140


Plain Film X-Rays

Single Radiographs

Effective Dose, mrem

Pelvis or hips

Lumbar spine (AP)

Abdomen

Thoracic spine (AP)

Thoracic spine (lateral)

Lumbar spine (lateral)

83

70

53

40

30

30

Finally, here is the dosage received for dental x-rays.  As you can see, dental x-rays have the lowest dosage, by far, when compared to the above tables.

Dental Film X-Rays

Radiographs

Effective Dose, mrem

Dental (full mouth series)

9

Dental (panorex)

1

Dental (bitewing)

0.5

A few other facts on random sources of radiation include:

  • The average U.S. resident receives 360 millirems every year from background sources.
  • If you live in a brick house instead of a wood house, you receive an extra 10 millirems per year due to radioactive materials in the masonry.
  • Flying cross country in an airplane exposes you to 5 millirems due to increased altitude.

Dr. Eric Meeker gains valuable information from x-rays to aid in keeping your mouth healthy.  It is not in your best interest to refuse dental x-rays due to the very small amount of radiation you receive from them.