Ch. 38
Regulations state that an x-ray unit operating above 70kVp must have a total filtration of:
2.5mm
Which component of the film packet reduces secondary radiation?
Lead foil
What type of consent is necessary before a patient is exposed for dental images?
Informed consent
What is the # of the mandibular right 1st premolar?
#28
The dentist says that the image does not have enough contrast; she would like to see more areas of black and white. Would you increase or decrease the mA or would you increase or decrease the kVp?
decrease kvP
One of the earliest signs of overexposure of the skin to radiation may be:
Erythema
How often should processing solutions be replenished?
Daily
The Consumer-Patient Radiation Health and Safety Act is a federal law that _____.
Requires all persons who take dental radiographs to be properly trained and certified
What is the name of #14?
Max L 1st molar
The maximum permissible dose of radiation for an operator is:
5.0 REMS or 0.05 Sv per year
Which function of the x-ray tube removes the long low penetrating wavelengths?
Aluminum filter
Indirect digital imaging involves the use of:
Phosphor storage plates (PSP)
Key areas of __________ include consent, patient needs, and liability issues.
Risk management
If my RINN is assembled for a PA of #31 which area can I also radiograph without having to reassemble to holder?
UL quadrant
What causes reticulation?
a sudden temperature change in the film from the developer to the water bath
Areas that appear dark on a radiograph are called:
Radiolucent
Failure to fix films long enough will result in a radiograph with
A brown tint
What is a plan to ensure that the dental office produces consistent, high-quality images with a minimum of exposure to patients and personnel called?
Quality assurance
Which color RINN would I use for a PA of #26?
Blue
What is the 2rd step in manual processing?
Rinsing
What exposure factor controls contrast?
kVp
Fixer cut off will result in:
A straight black border
The process of informing the patient about the nature and purpose of dental radiographs is termed?
Disclosure
What is the # of the mandibular left 2nd premolar?
#20
Which step in processing hardens the emulsion?
Fixing