Definitions
Structures that appear black in a dental image are called this.
What is radiolucent
Radiation wavelength that is more harmful to tissue
What is long wavelength
The first dentist to use dental x-rays in practice on live patients.
Who was Edmund C Kells
Two lines that will never cross
What is parallel
A process or ridge will appear in an image as:
What is radiopaque
Structures that appear white in a dental image are called this:
What is radiopaque
Radiation frequency that is more harmful to tissue
What is low frequency
This physicist is credited with the discovery of X-rays.
Who is Wilhelm Conrad Roentgen?
When two structures meet at a 90o angle
What is perpendicular
A meatus or a suture will appear this way on a dental image:
What is radiolucent
A unit of information in a digital image
What is a pixel
Used to align S O F and comply with ALARA
What is a film holder with a beam alignment device (or XCP RINN)
Edmund Kells first introduced this exposure technique
What is paralelling
negative angles point this way
What is up
This is the only factor that can be adjusted on a modern x-ray machine
What is time
Digital image detail or resolution is measured using this term:
What is line pairs per millimeter (lp/mm)
This type of radiography provides 50% to 90% less time:
What is digital radiography
In 1923, the Victor Corporation introduced this inherent filtration that cools the x-ray tube
What is the insulating oil?
This line splits a triangle into two equal parts
What is a bisector
This landmark is the lateral wall of the nasal cavity, and the medial wall of the maxillary sinus
What is the Inverted Y
This is the active part of the digital sensor (that contains the silicon chip):
What is CCD or Charge Coupled Device
Diagnosis is based on contrast. How many shades of gray are visible on a digital image?
What is 256
Howard Riley Raper introduced this technique, also called the interproximal technique.
What are BWX
This word describes the side to side orientation of the tubehead or sensor
What is horizontal
The S in S O F stands for
What is the source, or focal spot, in the x-ray tube