decribe cone cutting.
when the x-ray beam is not lined up right and the radiation does not hit the film causing it not to develop.
if dental films continue to turn out lighter than the one before then you should.
replinish the developer
what setting on a control panel should you increase for more penetrating power?
kilovoltage
direct digital imaging uses _____ instead of film?
sensors
what PPE is needed to take an X-ray?
mask, gloves, and a scrub jacket.
what causes overlap?
improper horizontal angulation
if the developer temp is higher than normal the X-ray will appear?
dark
minimum distance to place a 7-watt safe light?
4ft
true or false: digital radiography has less radiation than normal film mounting.
true
what should lead aprons be inspected for annually?
cracks
what causes a blurred X-ray image.
movement of the tube head, patient, or the film during exposure.
what would happen to the film if it was left in Fixer overnight?
it would turn completely clear
The four types of radiation are?
true or false: phosphor plates cannot be used in indirect digital imaging.
false
you should not take X-rays on pregnant women because?
a fetus is more sensitive due to rapidly reproducing cells
when teeth on an X-ray are smaller than normal, you need to decrease the ______?
verticle angulation
If the duplicating film was exposed to light it would?
appear light
what needs to be affixed on an extraoral radiograph?
patient name, date of exposure, R and L orientation
what does MRI stand for?
magnetic resonance imaging
the lead apron has a cervical collar to protect what?
the thyroid
what causes squiggly lines on an X-ray film after processing?
static electricity
What scent is produced when the fixer gets in with the developer?
ammonia
Who invented the first dental x-ray unit?
Dr. William Rollins
what are the 2 types of sensors used in digital dental radiology?
CCD and CMOS
pregnant women can only have _______ sieverts of radiation per year.
.005 SV