CBCT
Also written as: CBCT — Cone Beam Computed Tomography
Abbreviation for Cone Beam Computed Tomography, a three-dimensional dental and maxillofacial imaging modality using a cone-shaped X-ray beam.
Full Definition
Cone Beam Computed Tomography (CBCT) is a radiographic technique that uses a cone-shaped beam of X-rays to produce three-dimensional volumetric images of the dentition, jaw, skull base, and airways in a single rotation. It delivers a lower radiation dose than conventional medical CT and is widely used in implant planning, endodontics, orthodontics, and oral surgery. Editors should use 'CBCT' after first-use expansion and should not equate it with 'CT' or 'CAT scan', which refer to fan-beam computed tomography used in general medicine. Reporting guidelines such as the SEDENTEXCT guidelines govern its use in dentistry.
Usage
Usage note: Expand to 'Cone Beam Computed Tomography (CBCT)' on first use. Do not use 'CT' or 'CAT scan' as synonyms; they denote a different imaging technology.
In Context
- "CBCT imaging was indicated to assess the three-dimensional relationship of the impacted canine to the adjacent incisor roots." — Orthodontic referral letter
- "The CBCT report identified a missed mesio-buccal second canal in the upper first molar that had not been visualised on the periapical radiograph." — Endodontic case report