Cone-beam computed tomography is an innovative imaging technique that provides endodontists with three-dimensional views inside of the patient’s tooth. A CBCT greatly enhances the endodontist’s ability to diagnose, evaluate and treat complex canal anatomy, canal pathology and get a clearer idea of the internal anatomy of a patient’s tooth before treatment is initiated.
During a CBCT scan, the machine rotates around the patient, capturing images using a cone-shaped X-ray beam. These images are then used to construct a 3-D representation of the patient’s teeth and oral and maxillofacial region (teeth, jaw bone, and the temporomandibular joint). For endodontic treatment, we use a limited volume CBCT that shows exceptional detail but is focused only on a few teeth.
CBCT images are taken when there are complex endodontic conditions, such as:
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Root Canal system anomalies & to determine root curvature
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Diagnosis of dental root infections in patients who present with nonspecific clinical signs and symptoms or no evidence of disease visible in conventional imaging.
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To assess prior treatment complications, such as overextended root canal obturation material, separated endodontic instruments, calcified canal identification, and localization of perforations.
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Diagnosis and management of dental trauma, especially root fractures, luxation and/or displacement of teeth, and alveolar fractures.
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Presurgical case planning to determine the exact location of root apex/apices and to evaluate the proximity of adjacent anatomical structures, such as nerves.
CBCT images are also taken prior to placement of dental implants to:
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Perform presurgical case planning for implant placement
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To determine the location of important anatomical structures including the roots of teeth that will be adjacent to the implant and the location of nerves.