CBCT 3D Imaging in San Francisco
See what traditional X-rays can’t. Our in-office cone beam computed tomography gives your endodontist a complete three-dimensional map of your tooth—before treatment begins.
Beyond the Flat Image
Why Your Endodontist Needs More Than an X-Ray
Standard dental X-rays compress a three-dimensional tooth into a flat, two-dimensional shadow. Hidden root canals, hairline vertical fractures, and early-stage infections at the root tip can all disappear in that compression. When critical anatomy is invisible, treatment decisions are based on incomplete information—and outcomes suffer.
Research consistently shows that conventional periapical radiographs miss pathology that three-dimensional imaging reveals. In the upper jaw especially, overlapping roots and complex canal systems make accurate diagnosis with flat X-rays unreliable. For a specialist treating the most intricate structures in your mouth, that gap between what’s seen and what’s actually there is the difference between predictable success and an avoidable complication.
That’s where cone beam computed tomography (CBCT) changes everything.
The Technology
What Is a CBCT Scan?
CBCT (Cone Beam Computed Tomography) is an advanced imaging system that captures hundreds of images in a single, rapid rotation around your head. Specialized software then reconstructs those images into a detailed three-dimensional model of your teeth, roots, jawbone, nerve pathways, and surrounding anatomy.
Unlike a medical CT scan, our dental CBCT uses a focused cone-shaped X-ray beam and a small field of view—imaging only the area of clinical interest. The result is extraordinary diagnostic detail with a fraction of the radiation exposure of hospital-grade scanners.
~20 sec
Scan time — fast, painless, no preparation required
360°
Complete three-dimensional view of every root and canal
Low dose
Comparable to a few standard dental X-rays
Precision That Matters
How CBCT Transforms Root Canal Treatment
Endodontists work inside the smallest, most complex structures in your mouth—root canals often narrower than a pencil lead, curving in three dimensions through dense bone. CBCT gives Dr. Shuster, Dr. Ko, and Dr. Patel the ability to see your unique anatomy with total clarity before making a single cut. Here’s what that means for your care:
Find Every Canal
Molars frequently harbor extra canals—a second mesiobuccal canal (MB2) is present in up to 90% of upper first molars. Missing even one canal is the leading cause of root canal failure. CBCT maps every canal before treatment begins.
Detect Hidden Fractures
Vertical root fractures are nearly invisible on conventional X-rays yet account for a significant percentage of tooth extractions after endodontic treatment. CBCT reveals fracture lines that determine whether a tooth can be saved—or shouldn’t be treated at all.
Diagnose Earlier
Periapical infections must destroy a substantial amount of bone before they become visible on a flat X-ray. Three-dimensional imaging detects bone loss and infection at far earlier stages, enabling treatment before the problem worsens.
Plan Surgical Precision
For apicoectomy (root-end surgery), CBCT shows the exact relationship between the root tip, the sinus floor, the inferior alveolar nerve, and surrounding bone. This level of pre-surgical mapping reduces risk and improves outcomes.
Evaluate Retreatment Cases
When a previous root canal fails, understanding why is critical. CBCT reveals missed canals, short fills, ledges, perforations, and persistent infection—giving us a clear roadmap for retreatment success.
Assess Dental Trauma
After a dental injury, the extent of root fracture, luxation, and alveolar bone damage is often underestimated by traditional imaging. A CBCT scan shows the full picture, guiding the most conservative and effective treatment plan.
Your Visit
What to Expect During a CBCT Scan
If your referring dentist or our team determines that a CBCT scan will benefit your diagnosis or treatment plan, here’s what the process looks like:
Preparation
No special preparation is needed. You’ll simply remove any metallic jewelry, eyeglasses, or hearing aids near the scan area. No injections, no contrast dye, no fasting.
Positioning
You’ll stand or sit comfortably while a chin rest and head stabilizer keep you in position. The CBCT unit rotates smoothly around your head—there’s no enclosed tube, so patients who experience claustrophobia can typically complete the scan without difficulty.
The Scan
The actual scan takes approximately 10 to 20 seconds. You’ll stay still and breathe normally. It’s completely painless—you won’t feel a thing.
Immediate Results
Your 3D images are available within moments. Your endodontist will review them with you, often right on the screen, walking you through exactly what’s happening inside your tooth and what treatment plan makes the most sense.
Technology Comparison
CBCT 3D Imaging vs. Traditional Dental X-Rays
| Traditional X-Ray | CBCT 3D Scan | |
|---|---|---|
| Image type | Flat, 2D | Full 3D volume |
| Hidden canal detection | Limited — canals often overlap | Excellent — every canal visible |
| Fracture detection | Often missed | Significantly improved |
| Early infection detection | Requires significant bone loss | Detects earlier-stage lesions |
| Surgical planning | Estimated anatomy | Precise spatial relationships |
| Scan time | Seconds | ~10–20 seconds |
Clinical Applications
When We Recommend a CBCT Scan
Following the joint position statement from the American Association of Endodontists (AAE) and the American Academy of Oral and Maxillofacial Radiology, we use CBCT selectively—when the diagnostic benefit clearly outweighs the minimal radiation exposure. Common scenarios include:
Complex root canal anatomy — teeth with suspected extra canals, severe curvature, or calcified canal systems
Endodontic retreatment — evaluating why a previous root canal failed and planning a corrective approach
Apicoectomy planning — pre-surgical assessment of root-tip anatomy relative to the sinus, nerve, and adjacent teeth
Suspected root fracture — differentiating a fracture from other pathology when symptoms are inconclusive
Dental trauma evaluation — assessing the full extent of root and alveolar bone damage after an injury
Resorption diagnosis — identifying internal or external root resorption and determining the extent of tooth structure involved
Common Questions
CBCT Scan FAQ
What is a CBCT scan?
A CBCT (Cone Beam Computed Tomography) scan is an advanced 3D imaging technology that captures detailed, three-dimensional views of your teeth, roots, jawbone, and surrounding structures. Unlike traditional dental X-rays, which produce flat two-dimensional images, a CBCT scan gives your endodontist a complete 360-degree view of the treatment area—revealing anatomy that flat images simply cannot show.
Is a CBCT scan safe?
Yes. A CBCT scan delivers significantly less radiation than a traditional medical CT scan—often comparable to just a few standard dental X-rays. At Endodontic Arts of San Francisco, we use a focused, small field-of-view scan that limits radiation exposure to only the area of clinical interest. We follow AAE and AAOMR guidelines and only recommend CBCT when the diagnostic benefit clearly justifies the exposure.
How long does a CBCT scan take?
The scan itself takes approximately 10 to 20 seconds. Including positioning and preparation, the entire process is completed in under 10 minutes. Results are available immediately—your endodontist will review the 3D images with you during your appointment.
Does dental insurance cover CBCT scans?
Many dental insurance plans cover CBCT imaging when it is determined to be medically necessary for diagnosis or treatment planning. Common procedure codes include D0380 (cone beam image capture) and D0364 (cone beam interpretation). Our front office team will verify your specific benefits and explain any out-of-pocket costs before your scan.
Why does my endodontist need a CBCT scan for a root canal?
Traditional X-rays can miss hidden canals, hairline fractures, and early-stage infections. A CBCT scan reveals the full three-dimensional anatomy of your tooth—including the number, shape, and curvature of every root canal—so your endodontist can plan a more precise and thorough treatment. The result is fewer surprises during the procedure and higher long-term success rates.
Do I need to do anything to prepare for a CBCT scan?
No preparation is required. Simply remove any metallic objects near the scan area—jewelry, eyeglasses, hearing aids, or removable dental appliances. No injections, contrast dye, or fasting is necessary. You can eat, drink, and take your regular medications before your appointment.
Advanced Diagnosis. Better Outcomes.
Whether you’ve been referred for a root canal, retreatment, or a second opinion, our in-office CBCT technology ensures your endodontist has the clearest possible picture of your tooth. Two convenient San Francisco locations.
490 Post St #311, San Francisco 94102 | 3113 Geary Blvd, San Francisco 94118 | Mon–Fri 8:30am–5:30pm