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What needs to happen when exposing a full mouth set of radiographs?
The exposure button should be covered with a plastic barrier
What Radiographic tech. records accurate images of crowns, roots, and supporting structures of a selected area of the oral cavity?
what landmarks do you look for if the patient has no teeth?
Tuberosity and near the outer corner of the eye
while taking a panoramic extra oral x-ray where should the assistant instruct the patient to place tounge?
on roof of the mouth
what is it called when a lead disc is used for the elimination of the peripheral portion of the x-ray beam?>
in dental radiography, what infection control procedures are included?
sterilization and disinfection
what does immersing the contaminated exposed film packet in a disinfecting solution do?
What is the primary diagnostic use of bitewing radiograph?
check for interproximal decay and crestal bone level
which of the following is a helpful hint for mounting a full- mouth set of radiographs?
The overall appearance of the radiographic survey will hace an upward curve like a smile
if a patient is positioned in a panoramic unit with his or her chin too low,which of the following images might be seen on the resultant radiograph?
exaggerated curve of spee
what technique is best when exposing intraoral films prior to placing an implant?
Characteristic of x-ray beams?
Invisible and undetectable by sense, no mass, no charge, travel at speed of light, travel in short and high frequency waves, travel in straight line & can be deflected or scattered, absorbed by matter, causes ionization, can cause certain substance to fluoresce, can produce image on photographic film, cause changes in living cells
It occurs when an x-ray bean has been deflected from its path by interaction with matter
What does the aluminum filter remove?
Harmful low energy, long-wavelength sand least penetrating x-rays frin the beam
Inverse square law is?
The intensity of the radiation become weaker as it spreads out over a larger area
What is acute radiation exposure?
When a large does of radiation is absorbed in a short period of time
Where is intraoral film placed?
It is used inside the mouth and used to examine the teeth and supporting structures
Extraoral film is placed?
it is placed outside of the mouth and used to examine the large areas of the head and jaw
What will happen if you place the white side of film away from the PID?
you will get the Herringbone pattern
If streaks show up on film what happened?
YOur rollers need to be cleaned in the automatic processor
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