Radiology · single question
The SLOB rule is used for which purpose in radiography?
Show answer and explanation
Correct answer: D. Determining the location of objects at different angles
- A. Radiation dose calculation uses other methods — SLOB is purely a 3D localization technique.
- B. Bone density is measured by DEXA scans — not the SLOB rule.
- C. Interproximal caries detection uses bitewing radiographs — not the SLOB rule.
- D. SLOB = Same Lingual, Opposite Buccal. When two radiographs are taken with the tube shifted horizontally, the object that moves in the SAME direction as the tube shift is LINGUAL; the object moving in the OPPOSITE direction is BUCCAL. Used to localize impacted teeth, extra roots, and foreign bodies in three dimensions using 2D radiographs.