Cone beam computed tomography (CBCT) is a specialized imaging technology that produces detailed three-dimensional views of the teeth, jaw, bone, nerves, sinuses, and surrounding structures in a single scan. Unlike conventional two-dimensional dental X-rays, CBCT allows the dental team to examine anatomy from any angle and in any cross-section, providing a level of diagnostic precision that is simply not possible with flat radiographic images. At Cameron Park Dental Care, CBCT imaging is used to support accurate diagnosis and precise treatment planning for complex cases.
Conventional dental X-rays project a flat, two-dimensional shadow of three-dimensional structures onto film or a sensor. Important anatomical features can be overlapping, obscured, or distorted. CBCT uses a cone-shaped X-ray beam that rotates around the patient to capture hundreds of images from multiple angles, which are reconstructed by software into a detailed three-dimensional volumetric dataset. This dataset can be reviewed in any plane—axial, sagittal, or coronal—and from any angle, giving clinicians a complete picture of the anatomy involved.
The radiation dose from a dental CBCT scan is significantly lower than a medical CT scan, though higher than conventional dental X-rays. We use CBCT imaging selectively and only when the diagnostic information it provides is expected to meaningfully impact treatment planning.
CBCT is particularly valuable for dental implant planning—allowing precise measurement of bone volume, density, and the location of vital structures such as the inferior alveolar nerve and sinus floor before implant placement. It is also used to evaluate impacted teeth (particularly wisdom teeth), assess root canal anatomy before complex endodontic treatment, diagnose jaw joint (TMJ) pathology, evaluate bone structure before orthognathic surgery, and detect cysts, tumors, or other pathology not visible on conventional X-rays.
CBCT imaging is quick and non-invasive. The patient sits or stands in the machine while the scanner rotates around the head, capturing the scan in 10 to 40 seconds. No injections or preparation are required. The resulting dataset is available for review immediately and can be shared with specialists as needed.
At Cameron Park Dental Care, CBCT imaging supports the highest standard of diagnosis and treatment planning for complex cases. To learn whether CBCT imaging is part of your treatment plan, call us at (530) 676-0400 or contact us online.
Cone beam computed tomography (CBCT) is a three-dimensional imaging technology that produces detailed volumetric views of the teeth, jaws, bone, nerves, and sinuses. It is used in dentistry when two-dimensional X-rays do not provide sufficient diagnostic information—such as for implant planning, evaluation of impacted teeth, complex root canal anatomy, TMJ assessment, and detection of pathology not visible on flat radiographs.
CBCT allows the dental team to examine anatomy from any angle and cross-section, significantly improving diagnostic accuracy and the precision of treatment planning compared to conventional imaging. It is used selectively for cases where the three-dimensional data will meaningfully improve clinical decision-making.
CBCT is safe when used appropriately. The radiation dose from a dental CBCT scan is substantially lower than a medical CT scan—typically in the range of 40 to 600 microsieverts depending on the field of view and scan parameters, compared to thousands of microsieverts for a medical chest CT. The dose is higher than a single periapical X-ray but well within ranges considered acceptable for diagnostic imaging when clinically indicated.
We use CBCT selectively—only when the three-dimensional information is expected to improve diagnosis or treatment planning in a meaningful way. We do not use CBCT as a routine screening tool. Lead protective aprons are used during imaging. Pregnant patients should inform us before any imaging procedure.
CBCT is the standard of care for pre-implant assessment because it provides precise measurements of bone height, width, and density at the proposed implant site. It also reveals the exact location of critical anatomical structures—the inferior alveolar nerve, sinus floor, and adjacent tooth roots—that must be avoided during implant placement. This three-dimensional roadmap allows the clinician to plan implant position, angulation, and depth with accuracy that is not possible from two-dimensional X-rays.
In complex cases, the CBCT data can be used with planning software to virtually place the implants before surgery, and surgical guides can be fabricated from the digital plan to transfer the planned positions to the patient’s mouth with precision. This computer-guided approach reduces surgical risk and improves the predictability of outcomes.
No—CBCT imaging is completely painless and non-invasive. The patient sits or stands in the scanner while it rotates around the head, capturing the full scan in approximately 10 to 40 seconds depending on the machine and the field of view selected. There are no injections, no preparation, and no physical contact between the scanner and the patient beyond positioning aids used to keep the head still during imaging.
Some patients with claustrophobia may find the closeness of the scanner briefly uncomfortable, but because the scan is so fast, this is rarely a significant issue. If you have concerns about the imaging experience, let us know and we will do our best to make it comfortable.
The scan itself takes only 10 to 40 seconds. The total appointment time, including positioning and review of the images, is typically 15 to 20 minutes. The resulting three-dimensional dataset is available for review immediately after the scan and can be analyzed in detail during the same appointment or shared with specialists electronically.
The speed and convenience of CBCT make it practical to incorporate into treatment planning appointments without significantly extending their duration. Results are available immediately, avoiding the delays associated with external imaging referrals.
CBCT can reveal structures and conditions that are either not visible or difficult to assess accurately with conventional two-dimensional X-rays. These include the precise three-dimensional position and anatomy of impacted teeth, the exact location of the inferior alveolar nerve and sinus floor relative to planned implant sites, root canal morphology in complex multi-canal systems, the extent and location of bony pathology such as cysts or tumors, subtle fractures in roots or bone, and the detailed anatomy of the temporomandibular joints.
Because CBCT eliminates the overlap and distortion inherent in two-dimensional projection radiography, it allows a level of anatomical clarity and measurement precision that flat X-rays cannot provide—making it invaluable for specific complex clinical situations.
Coverage for CBCT varies by insurance plan. Some plans cover CBCT imaging when it is deemed clinically necessary—such as for implant planning, evaluation of pathology, or surgical planning. Other plans exclude it or cover it only under medical rather than dental benefits. The specific clinical indication and documentation of necessity are important for insurance consideration.
We verify coverage and provide the documentation needed to support insurance claims when CBCT is used as part of a covered treatment plan. If CBCT is an out-of-pocket expense, we will discuss the cost and its clinical value clearly before recommending it.
CBCT is strongly recommended and widely considered the standard of care for implant treatment planning because the three-dimensional information it provides is essential for safe and precise implant placement. Knowing the exact bone dimensions and the location of nerves, sinuses, and adjacent roots before surgery is critical for avoiding complications and achieving the planned result.
In straightforward single-tooth implant cases in areas with clearly adequate bone and no anatomical concerns on conventional X-rays, the decision may vary by clinician. However, we generally recommend CBCT for all implant cases where the anatomy warrants it, which is the majority of implant situations. The cost of imaging is modest relative to the value of the information it provides.
CBCT can be used for children when the clinical indication is strong enough to justify the imaging and no lower-radiation alternative will provide equivalent diagnostic information. Common pediatric indications include evaluation of impacted or supernumerary teeth, assessment of skeletal development for orthodontic planning, and evaluation of trauma involving the jaws. The decision to use CBCT in a child is made with extra care given that developing tissues are more radiation-sensitive.
When CBCT is indicated for a child, the smallest field of view appropriate for the clinical question is selected to minimize radiation exposure. We discuss the clinical necessity and radiation considerations with parents before proceeding with CBCT imaging for a young patient.
At Cameron Park Dental Care, CBCT is used thoughtfully—only when the three-dimensional data it provides is expected to meaningfully improve diagnosis or treatment planning for a specific patient. We apply clinical judgment about when CBCT is truly indicated rather than using it as a routine screening tool. When it is used, the data informs precise, well-planned treatment that benefits from the detailed anatomical picture CBCT provides.
If you have questions about whether CBCT imaging is part of your treatment plan or want to learn more about advanced dental imaging, call us at (530) 676-0400 or contact us online.
