Cone Beam Computed Tomography
Also written as: CBCT — Cone Beam Computed Tomography
A three-dimensional radiographic imaging modality using a cone-shaped X-ray beam to produce volumetric images of the maxillofacial region, abbreviated CBCT. Increasingly used in periodontal and implant assessment.
Full Definition
Cone Beam Computed Tomography (CBCT) is a specialized X-ray imaging technique that rotates around the patient to capture data in a cone-shaped beam, producing three-dimensional volumetric reconstructions of hard tissue. In periodontology, CBCT enables accurate measurement of intrabony defect morphology, furcation bone levels, and alveolar bone architecture that cannot be fully visualised on conventional two-dimensional radiographs. Editors should ensure 'Cone Beam Computed Tomography' is fully expanded on first use, followed by 'CBCT' in parentheses. Note that 'cone-beam' takes a hyphen as a compound modifier before a noun. CBCT should not be confused with medical CT (computed tomography), which uses a fan-beam and delivers higher radiation.
Usage
Usage note: Hyphenate 'cone-beam' as a compound modifier (e.g., 'cone-beam computed tomography'). Expand CBCT on first use. Do not conflate with medical CT scanning.
In Context
- "CBCT imaging revealed a three-wall intrabony defect of 8 mm depth not visible on periapical radiographs." — Periodontal diagnosis and treatment planning
- "The authors justified CBCT use based on the complexity of the furcation defect, in accordance with current selection criteria guidelines." — Research article methods section