DMD DMD - Doctor of Medicine in Dentistry Dental Radiology and Imaging Questions and Answers

Question 1

Which radiographic technique uses a film or sensor placed parallel to the long axis of the tooth with a beam directed perpendicular to both?

Accepted Answer

Paralleling technique

Answer

Bisecting angle technique

Answer

Panoramic technique

Answer

Occlusal technique

Question 2

What is the ALARA principle in dental radiography?

Accepted Answer

As Low As Reasonably Achievable

Answer

Automatic Lateral Angle Radiation Adjustment

Answer

Adjusted Long Axis Radiographic Analysis

Answer

Advanced Low-kV Radiation Alignment

Question 3

Which type of dental X-ray provides the most comprehensive single-image view of both dental arches, TMJ, and surrounding structures?

Accepted Answer

Panoramic radiograph

Answer

Full mouth series

Answer

Bitewing radiograph

Answer

Cone beam CT (CBCT)

Question 4

Bitewing radiographs are primarily used to detect which type of dental lesion?

Accepted Answer

Interproximal caries and crestal alveolar bone loss

Answer

Periapical pathology and root fractures

Answer

Impacted third molars

Answer

Sinus abnormalities

Question 5

A radiolucent halo surrounding the apex of a non-vital tooth on a periapical radiograph is most consistent with which diagnosis?

Accepted Answer

Periapical abscess or granuloma

Answer

Condensing osteitis

Answer

Cementoblastoma

Answer

Dentigerous cyst

Question 6

Which lead apron position is required when taking dental radiographs on a pregnant patient?

Accepted Answer

Thyroid collar plus full-body lead apron covering abdomen

Answer

No lead apron needed with digital X-ray

Answer

Thyroid collar only

Answer

Full-body apron without thyroid collar