Intro to Dental Radiography
_______ is the production of radiographs of teeth and adjacent structures through x-ray exposure
What is dental radiography?
_____ is the process where an atom gains or loses an electron, becoming an ion with a negative or positive charge
What is ionization?
_____ contains the x-ray tube where x-rays are produced
What is the tubehead?
_____ or "As Low As Reasonably Achievable." All possible methods to reduce radiation exposure should be employed
What is the ALARA protocol?
To prevent disease transmission
What is the purpose of infection control?
_____ discovered x-rays in 1895
Who was Wilhelm Conrad Roentgen?
This type of radiation is created when the primary beam interacts with matter and is deflected
What is secondary/scatter radiation?
_____ suspends the tubehead, houses electrical wires, and allows for movement and positioning
What is the extension arm?
_____ is the measurement of ionization in air; traditional unit is the roentgen
What is the radiation exposure measurement?
_____ come into contact with mucous membranes and require sterilization after each use
What are critical instruments?
_____ is energy carried by waves or streams of particles
What is radiation?
_____ is the overall darkness or blackness of an image
What is density?
_____ allows the radiographer to regulate the x-ray beam
What is the control panel?
_____ is the amount of energy absorbed by tissue; traditional unit is the radiation absorbed dose (rad)
What is a dose?
_____ do not come in contact with mucous membranes
What are noncritical instruments?
_____ is a beam of energy with the power to penetrate substances and record image shadows
What is an x-ray?
_____ is the difference in degrees of blackness between adjacent areas on an image
What is contrast?
_____ are hand-held devices that allow exposures outside the dental office
What is a portable unit or NOMAD?
_____ compares the biologic effects of different radiation types.; traditional unit is the roentgen equivalent man (rem)
What is a dose equivalent?
_____ provides multiple protocols specifically protecting the employee
What is OSHA (Occupational Safety and Health Administration)?
_____ is a high-energy radiation produced by electron collision with a metal target
What is x-radiation?
_____ is the duration x-rays are produced, also affecting the quantity of x-rays and image density
What is exposure time?
_____ stabilizes the receptor and reduce the chance of movement, thereby minimizing patient exposure
What is a beam alignment device or position indicating device?
_____ is the dose limits set by the National Council on Radiation Protection and Measurements for occupationally exposed individuals (5.0 rems/year or 0.05 Sv/year) and non-occupationally exposed individuals (0.1 rems/year or 0.001 Sv/year)
What is the maximum permissible dose (MPD)?
_____ works to advance the profession of dentistry and improve public oral health through various activities, including advocacy, education, research, and standard-setting
What is the ADA (American Dental Association)?