Rules of radiation protection for the operator include all of the following except
Each of the following regarding a dental radiographic examination should be documented in a patient's dental record EXCEPT
film speed and size of image receptor
Digital radiographic images that can be accessed only with a password are said to be
encrypted
An overdeveloped film may be caused by which of the following
excessive development time
Rules of radiation protection for the operator include all of the following except
never stand closer than 3 feet from the x-ray unit during an exposure
Each of the following is a limitation of the bisecting technique EXCEPT
may not be used with children
An error in vertical angulation on a bitewing image will result in
unequal distribution of the arches
Directing the central rays perpendicular to the plane of the image receptor and perpendicular to the long axes of the teeth describes which step of the paralleling technique?
vertical angulation
The ___ is an extension of the x-ray tubehead and is used to direct the x-ray beam
PID
The collimator
Restricts the size and shape of the x-ray beam
in which of the following conditions would vertical bitewings be recommended over horizontal bitewings
adult with peridontal disease
Con beam computed tomography plays a valuable role in which of the following
all of the above
which fo the following is a risk management strategy
all the above
Each of the following is an aspect of informed consent prior to a dental radiographic examination except
amount of radiation exposure anticipated (?)
____ films can be used in cassettes
extraoral
With the bisecting technique, what is the effect on the radiographic image if the vertical angualtion is significantly greater than necessary
foreshortening
Which of the following is used to help reduce film fog during exposure of extraoral radiographs
grid
In which of the following situations would using a size 3 image receptor be acceptable
horizontal bitewings on an adult for caries detection
Which of the following statements is true about duplicating films
if more film density is needed, the exposure time is shortended
Cutting off the root apex portion of the image on a periapical radiograph results from
inadequate vertical angualtion
Elongation results from
inadequate vertical angulation
when x-ray exposure time is increased, there is ______ density of the radiograph
increased
The most im portant reason for using an image receptor positioner when utilizing the paralleling technique is to stabalize the image receptor in a position
parallel to the teeth
What term describes the crystals used in the emulsion of intensifying screens
phosphors
Failure to add replenisher as needed each day to an automatic processor will result in?
poor-quality films
Which size image receptor is used, and how is it positioned for exposure of an anterior bitewing radiograph of a small and narrow adult arch?
size 1 placed vertically
Each of the following will assist in maintaining ideal infection control conditions when using an automatic processor with a daylight loader attachment EXCEPT
slide gloved hands through the baffles prior to and after processing
Which of these would appear radiopaque on a radiograph
tooth enamel
in a dental practice where many HIV-positive patients are treated, the film rollers in the automatic processor should be
treated in the usual accepted manner
If the radiographic processing time is too lon , the film will appear
dark
in order to increase the contrast on a radiograph, one should ____ the kilovoltage peak
decrease
Teh overall blackness or darkness of a film is
density
Each of the following may be protected with a plastic barrier to maintain infection during the radiographic procedure EXCEPT
(PSP plate) image receptor holder
A dental xray tube head adn PID are classified for infection control as
(not clinical contact) noncritical objects
Which of the following is the recommended size of the beam at the patient's face
2.75 inches
X-ray film can be removed from the fixer after _____ mintues for a wet reading and _____
3 mintues .....
what is the optimum development time and temperature for radiographic films using manual processing
68 degrees fro 5 mintues
Which of these target-image receptor distances is recommended for use with the bisecting technique?
8 inches
Which of the following types of PIDs do not produce scatter radiation
A & B
_____ is an example of a patient protection technique used before x-ray exposure
Proper prescribing of radiographs
A dentist must receive a signed release from a patient before sharing that patient's radiographs with another healthcare professional because the patient owns his or her radiographs
The statement is correct but the reason is NOT correct
Which of these conditions would NOT be visible on a bitewing radiograph
apical abcess
When utilizing the bisecting technique, the image receptor is placed
as close as possible to the tooth
Radiation caries are most often seen on teeth
at the cervical line circumferentially
which device is used to assist in the position of the PID in relation to the tooth adn film
beam alignment device
After the lead apron is used it hsould be
both a and c are correct
A tissue that lies within the primary dental beam and is very radiosensitive is the
cornea
A bitewing film shows the ____ of both the ___ and ____
crowns, maxilla, mandible
Cephalometric radiographs are primarily indicated to evaluate
jaw relationships
The ____ film provides a wide view of the maxilla and mandible
panoramic
When utilizing the bisecting technique, the central rays of the xray beam are directed
perpendicular to the bisector
Radiographic image receptor holders are classified for infection control as
semicritical instruments
What should be done with an image receptor immediately after removing it from the oral cavity
wipe off excess saliva with guaze or paper towel
When taking a panoramic radiograph, the patient's head should be oriented
with the midsagittal plane perpendicualr to the floor and in the focal trough
Spraying disinfectant directly on which of these should be avoided
xray machine exposure switch
The thyroid collar
both a and c are correct