Dental Radiology Exam Study Guide
with Complete Solutions
Radiology - Answer✔️✔️-Science of radiation as used in medicine.
Radiation - Answer✔️✔️-Electromagnetic rays that travel as waves of energy
through space.
Radiograph - Answer✔️✔️-Image produced on photosensitive film by
exposing film to x-rays and processing.
X-Radiation "X-Ray" - Answer✔️✔️-High energy ionizing electromagnetic
radiation.
Primary Radiation - Answer✔️✔️-Made up of the x-rays that come from the
target of the X-Ray tube. AKA: Primary beam or useful beam.
Scatter Radiation - Answer✔️✔️-Form of radiation produced from any
substance being struck by primary radiation.
Seconday Radiation - Answer✔️✔️-Form of radiation produced from any
substance being struck by primary radiation.
Dose - Answer✔️✔️-Amount of energy absorbed by tissue.
Genetic Effects - Answer✔️✔️-Radiation effects passed on to future
generations through genetic cells.
Somatic Effects (Somatic - "Greek" body illness) - Answer✔️✔️-Effecs of
radiation causeing illness and responsible for poor health.
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Bitewing Radiograph (BWX) - Answer✔️✔️-Radiographic film that show the
interproximal areas, crowns of the maxillary and mandibular teeth on the
same film.
Central Beam - Answer✔️✔️-Central portion of the primary beam of
radiation.
Cylinder - Answer✔️✔️-Component affixed to the tube head that helps align
the patient and film when positioning film.
Cone Cut - Answer✔️✔️-The central beam misses the center of the film and
produces a blank area cutting off the edge of the film.
Electromagnetic Radiation - Answer✔️✔️-Series of electromagnetic waves.
Elongation - Answer✔️✔️-Describes distortion of image; appears longer than
actuality.
Extraoral - Answer✔️✔️-X-ray film packet placed outside the oral cavity
during exposure.
Foreshortening - Answer✔️✔️-Distortion of image; appears shorter than
actuality.
Horizontal - Answer✔️✔️-Side to side motion.
Intraoral - Answer✔️✔️-Film packet placed inside oral cavity during
exposure.
Ionizing Radiation - Answer✔️✔️-Radiation that produces ionization,
resulting in harmful effects.
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