CBCT Imaging

Cone beam computed tomography, commonly called CBCT, is a three-dimensional imaging technology that produces detailed cross-sectional views of the teeth, roots, surrounding bone, and adjacent anatomical structures. Unlike conventional two-dimensional dental radiographs, which compress overlapping structures into a single flat image, CBCT captures the same area as a volume that can be examined from any angle and at any depth. In endodontics, this distinction is significant, since root canal anatomy, periapical lesions, resorptive defects, and vertical root fractures are often obscured on standard radiographs by the surrounding bone and adjacent teeth.

At Tri-City Endodontics, CBCT is used selectively rather than routinely, in keeping with the principle of obtaining the lowest radiation dose consistent with an accurate diagnosis. Typical indications include the evaluation of teeth with complex or calcified canal anatomy, the assessment of previously treated teeth where symptoms persist, the diagnosis of suspected cracks and resorptive lesions, the planning of apicoectomy and other surgical procedures where the proximity of the sinus or inferior alveolar nerve is relevant, and the evaluation of traumatic dental injuries where root and bone integrity cannot be fully assessed on two-dimensional images. Scans are performed using a small field of view limited to the area of interest, which reduces radiation exposure compared with larger medical CT scans.

Dr. Malhan and the Tri-City Endodontics team have practiced in Pasco for more than 25 years and use CBCT imaging as part of the diagnostic and treatment planning process for cases referred from general dentists throughout the Tri-Cities region. Findings from the scan are reviewed with the patient and the referring dentist when relevant, so the additional information contributes to a clear understanding of the condition of the tooth and the realistic prognosis of the treatment options under consideration