RAD MIDTERM EXAM QUESTIONS WITH A+ ANSWERS.
2025/2026 EDITION.
Types of imaging that include periapical, interproximal
Intraoral imaging
examination, and occlusal examination.
A clear or white unexposed area on the image resulting from
Cone cut
incorrect positioning of the PID.
Antiseptic A substance that inhibits the growth of bacteria.
Asepsis The absence of pathogens.
Overlapping of teeth Caused by incorrect horizontal angulation in the radiographic image.
Vertical angulation Excessive vertical angulation causes long, distorted teeth to appear on the
image.
For both periapical and bitewing images: Anterior periapical
Recommended exposure sequence
receptors, Posterior periapical receptors, Bitewing exposures.
Maxillary periapicals Best viewed first when mounted, starting with the maxillary right molar image.
Thermionic emission Occurs at the negative cathode.
General radiation Accounts for 70% of all the x-ray energy produced at the anode.
Dental x-rays scatter The type of scatter that occurs most often with dental x-rays.
Critical instruments Examples include scalpel and scaler.
Required for dental assistants and dentists to expose dental
Radiology certificate
radiographs in Pennsylvania.
Elongation of the radiographic Caused by incorrect horizontal angulation.
image
Foreshortening of the radiographic Caused by incorrect horizontal angulation.
image
Compton A type of scattering of x-rays.
photoelectric A phenomenon where x-rays are absorbed by matter.
tungsten target The focal spot in an x-ray tube.
High frequency electromagnetic Has a short wavelength.
radiation
Low frequency electromagnetic Has a long wavelength.
radiation
vertical elongation An error in radiography where the image appears stretched vertically.
vertical foreshortening An error in radiography where the image appears compressed vertically.
vertical angulation of the PID for Downward (positive 10 degrees).
tab bitewings
2025/2026 EDITION.
Types of imaging that include periapical, interproximal
Intraoral imaging
examination, and occlusal examination.
A clear or white unexposed area on the image resulting from
Cone cut
incorrect positioning of the PID.
Antiseptic A substance that inhibits the growth of bacteria.
Asepsis The absence of pathogens.
Overlapping of teeth Caused by incorrect horizontal angulation in the radiographic image.
Vertical angulation Excessive vertical angulation causes long, distorted teeth to appear on the
image.
For both periapical and bitewing images: Anterior periapical
Recommended exposure sequence
receptors, Posterior periapical receptors, Bitewing exposures.
Maxillary periapicals Best viewed first when mounted, starting with the maxillary right molar image.
Thermionic emission Occurs at the negative cathode.
General radiation Accounts for 70% of all the x-ray energy produced at the anode.
Dental x-rays scatter The type of scatter that occurs most often with dental x-rays.
Critical instruments Examples include scalpel and scaler.
Required for dental assistants and dentists to expose dental
Radiology certificate
radiographs in Pennsylvania.
Elongation of the radiographic Caused by incorrect horizontal angulation.
image
Foreshortening of the radiographic Caused by incorrect horizontal angulation.
image
Compton A type of scattering of x-rays.
photoelectric A phenomenon where x-rays are absorbed by matter.
tungsten target The focal spot in an x-ray tube.
High frequency electromagnetic Has a short wavelength.
radiation
Low frequency electromagnetic Has a long wavelength.
radiation
vertical elongation An error in radiography where the image appears stretched vertically.
vertical foreshortening An error in radiography where the image appears compressed vertically.
vertical angulation of the PID for Downward (positive 10 degrees).
tab bitewings
