Radiographic Interpretation Flashcards
7 cards from real ADEX practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Radiographic Interpretation flashcards as text
What is the primary purpose of using the paralleling technique in periapical radiography?
Answer: To minimize geometric distortion by aligning the film/sensor parallel to the long axis of the tooth
The paralleling technique places the receptor parallel to the tooth's long axis and directs the central beam perpendicular to both, minimizing elongation and foreshortening.
A radiopaque structure that appears to move in the same direction as the x-ray tube shift during SLOB technique is located:
Answer: Lingually
With the SLOB rule (Same = Lingual, Opposite = Buccal), an object moving with the tube shift is on the lingual side.
Which radiographic finding is most consistent with a diagnosis of condensing osteitis?
Answer: A diffuse radiopaque mass surrounding the apex of a tooth with a history of pulpitis
Condensing osteitis appears as a diffuse radiopacity at the apex of a tooth with pulpal inflammation, representing a bony reaction to low-grade infection.
Furcation involvement in a maxillary molar is best evaluated radiographically using which projection?
Answer: Periapical radiograph with correct horizontal angulation through the furcation
A periapical radiograph with proper horizontal angulation directed through the furcation area provides the best view of furcation bone loss in maxillary molars.
A patient presents with a large, multilocular radiolucency crossing the midline of the mandible with a 'soap bubble' appearance. What is the most likely diagnosis?
Answer: Ameloblastoma
A multilocular 'soap bubble' radiolucency in the mandible is a classic radiographic presentation of ameloblastoma.
What does 'cervical burnout' refer to in radiographic interpretation?
Answer: A false radiolucency at the cervical margin of a tooth due to decreased x-ray absorption
Cervical burnout is a radiographic artifact appearing as a false radiolucency at the cervical region of a tooth due to the relative thinness of tooth structure there.
On a panoramic radiograph, which anatomical landmark appears as a radiopaque band running horizontally across the maxillary sinus region?
Answer: Zygomatic arch
The zygomatic arch frequently appears as a horizontal radiopaque band superimposed over the maxillary sinus on panoramic radiographs.