The radiation exposure for digital imaging systems is 50% to 60% less than that required for film used in conventional radiography.  The aluminum filters in the tubehead help to protect patients from excessive radiation exposure by removing the high energy photons from the primary beam.  

An interproximal examination has been prescribed for your 7-year-old patient.  What receptor will likely be most appropriate for this exam?

(1) If a patient refuses to have necessary dental images exposed, the dentist may refuse to treat the patient.   (2) A patient may sign a waiver to release the dentist from liability resulting from their refusal to have prescribed dental images exposed. 

Which of the following changes describes the development of cataracts in a patient that has been exposed to excessive radiation?

Use the images, initial image on the left and second image on the right, to apply the Buccal Object Rule and determine the location of the root canal filling indicated by the blue arrow in #12. The root canal filling material indicated by the blue arrow in tooth #12 is located ____________ to the other canal in tooth #12.

Describe the 5 basic principles of the paralleling technique.  

Use of a lead apron is the most effective method of reducing a patient’s radiation exposure.  Compared to circular collimation, use of rectangular collimation can reduce the area of radiation exposure by 80%.

What is occurring inside the x-ray tube when the kV setting is increased on the exposure control panel?

Which of the following PPE items should the radiographer wear when exposing dental images on a patient with a negative medical history?

A male client is undergoing chemotherapy for acute myeloid leukemia. Which laboratory finding will the nurse report to the healthcare provider?