DENTAL RADIOLOGY CORE EXAM SET 2026/2027
QUESTIONS AND SOLUTIONS RATED A+
✔✔film speed F - ✔✔Kodak InSight
faster than D
requires less exposure time
✔✔lateral jaw exposure - ✔✔shows either left or right half of the jaw
✔✔latent image - ✔✔image made on film when expose to x-rays
must be processed to turn into a visible image
✔✔coronoid process of the mandible - ✔✔bone seen on films taken in the far back of a
pts mouth
radiopaque
✔✔hamular process - ✔✔spike of bone seen behind the last molar
radiopaque
✔✔maxillary tuberosity - ✔✔rounded portion of bone behind the last tooth
radiopaque
✔✔zygoma - ✔✔portion of the cheek bone
radiopaque
✔✔sinus septum - ✔✔thin bone separating the sinuses
radiopaque
✔✔floor of the sinus - ✔✔lower border of the sinuses
radiopaque
✔✔nasal fossa - ✔✔nasal cavity
radiolucent
✔✔median suture - ✔✔"crack" between roots of maxillary central incisors
area of incomplete fusion
radiolucent
✔✔incisive foramen - ✔✔hole in the bone of the maxilla and between roots of incisors
radiolucent
✔✔external oblique ridge - ✔✔dense white line distal to the last molar and moving
across root of molars
, ✔✔internal oblique ridge - ✔✔located below the external oblique ridge
less dense
ridge of bone that extends across roots
✔✔mandibular canal - ✔✔border on top and bottom by a white line
passageway for nerves and blood vessels
✔✔submandibular gland fossa - ✔✔rounded area of bone
less dense
space for submandibular salivary gland
✔✔mental foramen - ✔✔hole between roots of premolars
✔✔mental ridge - ✔✔runs from the premolar region to the midline of the mandible
prominence in bone forming chin
✔✔genial tubercles - ✔✔bone spikes on the inner surface of the mandible
appear as a circle in images
✔✔lingual foramen - ✔✔located within genial tubercles
✔✔inferior border of the mandible - ✔✔rounded edge/border of the mandible
✔✔cephalostat - ✔✔standardizes and stabilizes head positioning with a cephalometric
machine
films used by ortho, oral surg, and prostho
✔✔charged-coupled device (CCD) - ✔✔sensor used in place of film for digital imaging
✔✔edentulous - ✔✔areas of the jaw with no teeth
✔✔bent film - ✔✔
✔✔scratched emulsion - ✔✔
✔✔slanted occlusal plane - ✔✔
✔✔herringbone - ✔✔film placed backwards (concave instead of convex)
✔✔overlapping - ✔✔crowns appear to be on top of each other
✔✔cone cut - ✔✔PID not centered over film
✔✔elongation - ✔✔insufficient vertical angulation
QUESTIONS AND SOLUTIONS RATED A+
✔✔film speed F - ✔✔Kodak InSight
faster than D
requires less exposure time
✔✔lateral jaw exposure - ✔✔shows either left or right half of the jaw
✔✔latent image - ✔✔image made on film when expose to x-rays
must be processed to turn into a visible image
✔✔coronoid process of the mandible - ✔✔bone seen on films taken in the far back of a
pts mouth
radiopaque
✔✔hamular process - ✔✔spike of bone seen behind the last molar
radiopaque
✔✔maxillary tuberosity - ✔✔rounded portion of bone behind the last tooth
radiopaque
✔✔zygoma - ✔✔portion of the cheek bone
radiopaque
✔✔sinus septum - ✔✔thin bone separating the sinuses
radiopaque
✔✔floor of the sinus - ✔✔lower border of the sinuses
radiopaque
✔✔nasal fossa - ✔✔nasal cavity
radiolucent
✔✔median suture - ✔✔"crack" between roots of maxillary central incisors
area of incomplete fusion
radiolucent
✔✔incisive foramen - ✔✔hole in the bone of the maxilla and between roots of incisors
radiolucent
✔✔external oblique ridge - ✔✔dense white line distal to the last molar and moving
across root of molars
, ✔✔internal oblique ridge - ✔✔located below the external oblique ridge
less dense
ridge of bone that extends across roots
✔✔mandibular canal - ✔✔border on top and bottom by a white line
passageway for nerves and blood vessels
✔✔submandibular gland fossa - ✔✔rounded area of bone
less dense
space for submandibular salivary gland
✔✔mental foramen - ✔✔hole between roots of premolars
✔✔mental ridge - ✔✔runs from the premolar region to the midline of the mandible
prominence in bone forming chin
✔✔genial tubercles - ✔✔bone spikes on the inner surface of the mandible
appear as a circle in images
✔✔lingual foramen - ✔✔located within genial tubercles
✔✔inferior border of the mandible - ✔✔rounded edge/border of the mandible
✔✔cephalostat - ✔✔standardizes and stabilizes head positioning with a cephalometric
machine
films used by ortho, oral surg, and prostho
✔✔charged-coupled device (CCD) - ✔✔sensor used in place of film for digital imaging
✔✔edentulous - ✔✔areas of the jaw with no teeth
✔✔bent film - ✔✔
✔✔scratched emulsion - ✔✔
✔✔slanted occlusal plane - ✔✔
✔✔herringbone - ✔✔film placed backwards (concave instead of convex)
✔✔overlapping - ✔✔crowns appear to be on top of each other
✔✔cone cut - ✔✔PID not centered over film
✔✔elongation - ✔✔insufficient vertical angulation
