HIGHLIGHTS
Cone-beam computed tomography (CBCT) is an advanced imaging modality that has high clinical applications in the field of dentistry. CBCT proved to be a successful investigative modality that has been used for dental and maxillofacial imaging. Radiation exposure dose from CBCT is 10 times less than from conventional CT scans during maxillofacial exposure. Furthermore, CBCT is highly accurate and can provide a three-dimensional volumetric data in axial, sagittal and coronal planes. This article describes the basic technique, difference in CBCT from CT and main clinical applications of CBCT.
CBCT is an important investigative tool in diagnosing apical lesions supported by a few research studies that have shown that contrast-enhanced CBCT images can be used to differentiate between apical granulomas and apical cysts by measuring the lesion density.13 It has applications in cases of differentiating the lesions of endodontic and non-endodontic origin. Inconspicuous cases of vertical root fractures are best diagnosed with CBCT.14
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