BU Dental Radiology final test latest update with all answers

BU Dental Radiology final test latest update
with all answers




What does the x-ray tube contain? - ---✔✔✔ANSWER----cathode anode
and focusing cup



Who discovered what x-rays were? - ---✔✔✔ANSWER----Wilhelm Conrad
Roentgen



In a dental x-ray tube the electrons are emitted from the what? - ---
✔✔✔ANSWER----Cathode


X-ray is produced when electrons moving at a high speed hit the tugstnen target in
a x-ray tube. T or F - ---✔✔✔ANSWER----True



an assistant may hold the film or sensor in place for the pt during exposure - ---
✔✔✔ANSWER----False

, As soon as a film or sensor is placed in a pt's mouth it is considered
contaminated? - ---✔✔✔ANSWER----True



X-rays are ionizing radiation. - ---✔✔✔ANSWER----True



Bitewings show what? - ---✔✔✔ANSWER----Crowns and permant fixtures
are interporximal surfaces of the teeth.


In the paralleling technique the xray is directed perpendicular to the bisecting line
between the angle of the long axis of the tooth and the film/sensor - ---
✔✔✔ANSWER----True, explain.. So when you are parallelling, the angle you
make when you are bisecting is perpendicular to the angle



Pt;s should be drapped with a led apron prior to any radiographic images? - ---
✔✔✔ANSWER----True


Which if not a safety precaution for taking x-rays?
-Always stand behind an appropriate barrier?
-Never stand in the path of primary radiation
-Never stabilize the tube head during radiation

-If neccessary hold the film in the pt's mouth - ---✔✔✔ANSWER----If
neccessary hold the film in the pt's mouth, never hold the film or sensor in the pts
mouth.