Radiation *** a form of energy carried by waves or a stream of particles
X-Radiation *** a high energy radiation produced by the collision of a beam of
electrons with a metal target in an x-ray tube
X-ray *** a beam of energy that has the power to penetrate substances and record
image shadows on receptors (digital sensors)
Radiology *** the science or study of radiation used as medicine; a branch of medical
science that deals with the therapeutic use of x-rays, radioactive substances and other
forms of radiant energy
Radiograph *** an image or picture produced on a receptor by exposure to ionizing
radiation; a two-dimensional representation of a 3D object
Dental radiograph *** a photographic image produced on a receptor by the passage of
x-rays through teeth and related structures
Radiography *** The art and science of making radiographs by the exposure of a
receptor to x-rays
Dental radiography *** The production of radiographs of the teeth and adjacent
structures by the exposure of an image receptor to x-rays
Dental radiographer *** any person who positions, exposes, and processes dental x-
ray image receptors
Image *** a picture or likeness of an object
, Image receptor *** a recording medium; examples include x-ray film, phosphor plate,
or digital sensor
Image, dental *** The creation of digital, print, or film representations of anatomic
structures for the purpose of diagnoses
Wilhelm Conrad Roentgen *** discovered x-ray on November 8, 1895
Otto Walkhoff *** made the first dental radiograph
F. Gordon Fitzgerald *** the "father of modern dental radiography"
Cone-beam computed tomography *** introduced in 1999, allows for viewing of the
oral and maxillofacial complex in three dimensions
American Dental Association *** recognized oral and maxillofacial radiology as a
specialty field of dentistry in 1999
Before 1974 *** no federal standards existed for the manufacture of dental x-ray
machines
After 1974 *** all dental x-ray machines must meet specific guidelines regulating
diagnostic equipment performance standards
Tubehead *** contains the x-ray tube that produces dental x-rays
Positioning-indicating device (PID) *** extends from the tubehead opening and helps
in positioning the x-ray tube