What is a cone beam CT scan?

A cone beam CT (CBCT) scan is a specialized 3D imaging device that creates detailed cross-sectional pictures of your jaw, teeth, and bone structure. Unlike a standard dental X-ray, which produces a flat 2D image, CBCT captures a series of images from different angles and reconstructs them into a three-dimensional model that clinicians can examine from every direction.

CBCT technology uses a rotating cone-shaped X-ray beam that circles your head once while you remain still. The scan takes 10 to 40 seconds, depending on the field of view and machine settings. The resulting images show bone density, height, width, and anatomy in precise detail, making it invaluable for implant planning.

For dental implant cases, CBCT allows practitioners to measure available bone volume before placing an implant, identify the position of the inferior alveolar nerve, assess sinus cavity proximity, and plan implant angle and depth accurately. This three-dimensional view reduces guesswork and helps prevent complications. CBCT also detects bone loss, evaluates jaw fractures, and aids in surgical planning for more complex cases.

The radiation dose is higher than a single periapical X-ray but comparable to a full mouth series of traditional films. Most dental practices in Greenville offering implant placement have CBCT equipment on-site, though some refer patients to specialty imaging centers.