Radiology Chapter 38 Exam Questions
100% Correct Answers 2025 Current
Update
The uses of dental images include detection of: - Answer - bone loss in its early stages
exposure to radiation: - Answer - no matter how small, has the potential to cause
harmful biologic changes
the x-ray was discovered on november 8, 1895, by: - Answer - Wilhem Conrad
Roentgen
the dentist who is credited with the first practical use of radiographs in dentistry in 1896
is: - Answer - Edmund Kells
Anything that occupies space and has a form or shape is: - Answer - matter
which of the following statements is true concerning the structure of the atom - Answer -
the orbital path of an electron around the nucleus is called an electron shell.
in dentistry the _______ the wavelength of the x-rays, the greater their energy and their
usefulness. - Answer - shorter
which component of the x-ray machine functions in positioning the tubehead? - Answer
- extension arm
the heart of the x-ray generating system is the: - Answer - x-ray tube
Secondary radiation: - Answer - Refers to 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 restortions
the term_____ is used to describe areas that appear dark on the image; _______ is the
term used to describe areas that appear white or light gray. - Answer - radiolucent;
radiopaque
the range of shades of gray between black and white on an image is called: - Answer -
contrast
The degree of density or blackness on a radiograph is controlled by __________. -
Answer - milliampere seconds
100% Correct Answers 2025 Current
Update
The uses of dental images include detection of: - Answer - bone loss in its early stages
exposure to radiation: - Answer - no matter how small, has the potential to cause
harmful biologic changes
the x-ray was discovered on november 8, 1895, by: - Answer - Wilhem Conrad
Roentgen
the dentist who is credited with the first practical use of radiographs in dentistry in 1896
is: - Answer - Edmund Kells
Anything that occupies space and has a form or shape is: - Answer - matter
which of the following statements is true concerning the structure of the atom - Answer -
the orbital path of an electron around the nucleus is called an electron shell.
in dentistry the _______ the wavelength of the x-rays, the greater their energy and their
usefulness. - Answer - shorter
which component of the x-ray machine functions in positioning the tubehead? - Answer
- extension arm
the heart of the x-ray generating system is the: - Answer - x-ray tube
Secondary radiation: - Answer - Refers to 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 restortions
the term_____ is used to describe areas that appear dark on the image; _______ is the
term used to describe areas that appear white or light gray. - Answer - radiolucent;
radiopaque
the range of shades of gray between black and white on an image is called: - Answer -
contrast
The degree of density or blackness on a radiograph is controlled by __________. -
Answer - milliampere seconds
