BU Dental Radiology final test questions
|| || || || || || ||
with answers ||
What does the x-ray tube contain? - CORRECT ANSWERS ✔✔cathode anode
|| || || || || || || || || || ||
and focusing cup
|| ||
Who discovered what x-rays were? - CORRECT ANSWERS ✔✔Wilhelm
|| || || || || || || || ||
Conrad Roentgen ||
In a dental x-ray tube the electrons are emitted from the what? - CORRECT
|| || || || || || || || || || || || || ||
ANSWERS ✔✔Cathode ||
X-ray is produced when electrons moving at a high speed hit the tugstnen
|| || || || || || || || || || || || ||
target in a x-ray tube. T or F - CORRECT ANSWERS ✔✔True
|| || || || || || || || || || ||
an assistant may hold the film or sensor in place for the pt during exposure -
|| || || || || || || || || || || || || || || ||
CORRECT ANSWERS ✔✔False || ||
As soon as a film or sensor is placed in a pt's mouth it is considered
|| || || || || || || || || || || || || || || ||
contaminated? - CORRECT ANSWERS ✔✔True || || || ||
X-rays are ionizing radiation. - CORRECT ANSWERS ✔✔True
|| || || || || || ||
, Bitewings show what? - CORRECT ANSWERS ✔✔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 -
|| || || || || || || || || || || || || || || ||
CORRECT ANSWERS ✔✔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? -
|| || || || || || || || || || || || || ||
CORRECT ANSWERS ✔✔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 - CORRECT ANSWERS ✔✔If
|| || || || || || || || || || || || ||
neccessary hold the film in the pt's mouth, never hold the film or sensor in
|| || || || || || || || || || || || || || ||
the pts mouth.
|| ||
X-rays travel at the speed of light? - CORRECT ANSWERS ✔✔True
|| || || || || || || || || ||
Nerve cells can be regennerated? - CORRECT ANSWERS ✔✔False, No-
|| || || || || || || || || ||
Dense things like bone can and perm fixtures, restorations.
|| || || || || || || ||
Which of these have an infulence on radiation protection?
|| || || || || || || ||
|| || || || || || ||
with answers ||
What does the x-ray tube contain? - CORRECT ANSWERS ✔✔cathode anode
|| || || || || || || || || || ||
and focusing cup
|| ||
Who discovered what x-rays were? - CORRECT ANSWERS ✔✔Wilhelm
|| || || || || || || || ||
Conrad Roentgen ||
In a dental x-ray tube the electrons are emitted from the what? - CORRECT
|| || || || || || || || || || || || || ||
ANSWERS ✔✔Cathode ||
X-ray is produced when electrons moving at a high speed hit the tugstnen
|| || || || || || || || || || || || ||
target in a x-ray tube. T or F - CORRECT ANSWERS ✔✔True
|| || || || || || || || || || ||
an assistant may hold the film or sensor in place for the pt during exposure -
|| || || || || || || || || || || || || || || ||
CORRECT ANSWERS ✔✔False || ||
As soon as a film or sensor is placed in a pt's mouth it is considered
|| || || || || || || || || || || || || || || ||
contaminated? - CORRECT ANSWERS ✔✔True || || || ||
X-rays are ionizing radiation. - CORRECT ANSWERS ✔✔True
|| || || || || || ||
, Bitewings show what? - CORRECT ANSWERS ✔✔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 -
|| || || || || || || || || || || || || || || ||
CORRECT ANSWERS ✔✔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? -
|| || || || || || || || || || || || || ||
CORRECT ANSWERS ✔✔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 - CORRECT ANSWERS ✔✔If
|| || || || || || || || || || || || ||
neccessary hold the film in the pt's mouth, never hold the film or sensor in
|| || || || || || || || || || || || || || ||
the pts mouth.
|| ||
X-rays travel at the speed of light? - CORRECT ANSWERS ✔✔True
|| || || || || || || || || ||
Nerve cells can be regennerated? - CORRECT ANSWERS ✔✔False, No-
|| || || || || || || || || ||
Dense things like bone can and perm fixtures, restorations.
|| || || || || || || ||
Which of these have an infulence on radiation protection?
|| || || || || || || ||
