Radiation
_______ is a form of energy carries by waves or a stream of particles
radiation
Is the dental x-ray tubehead a semi-critical or non-critical instrument?
non-critical
The receptor is placed in the mouth ______ to the long axis of the tooth being radiographed
parallel
A ____ is a negative electrode that consists of a tungsten wire filament in a cup-shaped holder made of molybdenum
cathode
How many retakes do you get in a FMX?
4
What did early pioneers in dental radiography die from?
Overexposure
What is the vertical angulation used for bitewings?
+10 degrees
With vertical angulation, the central ray is _______ to the receptor and long axis of the tooth
perpendicular
A ______ ______ serves as a focal spot and converts bombarding electrons into x-ray photons
tungsten target
Is enamel radiopaque or radiolucent?
Radiopaque
Who discovered x-rays?
Roentgen
What is the most important thing to avoid as an operator?
primary beam
What type of collimator does the ADA recommend?
Rectangular
If you increase the kVp, the radiographs will be _____
darker
How many mm of bone should be around each apex?
2-3mm
When did Roentgen discover x-rays?
1895
What PPE is required when exposing dental images?
Gloves and mask
The _____ technique can be used to expose PA images
bisecting
______ is the number of wavelengths that pass a certain point in a given length of time
frequency
Sharpness is increased if the tungsten target is ____
small
Who is credited with the first practical use of radiography?
C. Edmund Kells
A substance that inhibits the growth of bacteria
Antiseptic
If a patient has a shallow palate, vertical angulation is increased by __-__ degrees
5-15
______ describes the number of electrons flowing through the conductor
Amperage
unsharpness