Radiology study Guide dental assisting Questions All Solved Correct.

Exposure to radiation: - Answer Exposure no matter how small has the potential to cause harmful changes in the operator and patient Secondary radiation: - Answer X-radiation that is created when the primary beam interacts with matter Which of the following structures will appear radiopaque on dental x-ray film? - Answer Metal restorations One of the rules of radiation protection is to never stand closer than ___ feet from the xray unit during exposure unless you are behind a barrier - Answer 6ft. Primary radiation is: - Answer X-rays that come from the target called useful beam The fuzzy or blurred area around an image is the ____. It can be reduced by... - Answer Penumbra, limiting movement Which council determines the radiation effects and levels tolerable for humans? - Answer NCRP (national council on radiation protection) A good technique for reducing the radiation exposure to both patient and the operator is the use of - Answer Fast film or digital imaging A radiograph that has an overall gray appearance is generally preferred. This x-ray is said to have: - Answer Low contrast How well the image reproduces fine detail or distinct outlines of an image is called - Answer Sharpness The location where images are produced in the xray tube is the called the: - Answer Focal spot ___ speed film is the newest and tastes film currently available - Answer F