Advanced imaging: CT, CBCT, MRI in dentistry
Oral Medicine and Radiology · Dental (BDS)
Study notes
An impacted canine threatens an incisor root. Why CBCT over OPG? OPG superimposes - it can't show buccal-palatal position or true root contact; CBCT's 3D slices reveal exactly where the canine sits against the root. Students learn the 3D indication: when 2D superimposition hides the answer (impaction position, implant bone width, pathology extent), CBCT earns its higher dose - never as routine.
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