What is CBCT and how is it different from a regular dental X-ray?
A standard dental X-ray, whether a small intraoral film or a panoramic image, flattens the mouth into two dimensions. Structures overlap, and depth is hard to judge. Cone-beam computed tomography rotates around the head once, capturing many images that software reconstructs into a three-dimensional model. The dentist can then scroll through slices of the jaw from any angle.
That third dimension answers questions a flat image cannot: how wide the bone is, how close a root lies to a nerve, or whether a small infection sits at the tip of one root rather than another.
Why "low-dose" matters
Any X-ray involves some radiation, so imaging should be used only when it adds useful information. The CBCT unit at Seoul E&D Dental Clinic is a low-dose system, designed to obtain diagnostic 3D images with reduced exposure compared with conventional medical CT. We take a scan when it will genuinely change a decision, not as a routine add-on.
When do we use 3D CBCT at E&D Dental?
Implant planning
Every implant plan at the clinic starts with CBCT. The scan shows bone height and width, the position of the nerve in the lower jaw and the sinus in the upper jaw. For digital guided implants, this data is used to design a custom surgical guide so the implant is placed according to the 3D plan. It also helps show whether bone grafting may be needed first.
Wisdom teeth
Lower wisdom teeth often sit near the inferior alveolar nerve. A 3D view helps the dentist judge that relationship before impacted wisdom tooth removal and plan the safest approach.
Root canal problems
Extra canals, hidden infections and some root fractures are difficult to see on a flat X-ray. CBCT can help clarify why a treated tooth is still sore.
Jaw joint assessment
For selected TMJ cases, CBCT shows the bony parts of the joint, supporting diagnosis alongside a clinical examination.
What is the scan like for the patient?
- You remove metal items such as earrings, glasses and removable dentures.
- You stand or sit still with your chin on a rest while the arm rotates around your head.
- The scan itself is brief and does not hurt.
- The dentist reviews the 3D images with you on screen and explains what they show.
Limitations
CBCT is excellent for bone and teeth but shows soft tissues such as gums and muscles less clearly. It does not replace a clinical examination, and it is not needed for every visit. If you are or may be pregnant, tell us before any X-ray.
See the images for yourself
We believe patients decide better when they can see what the dentist sees. Ask to look through your scan during the consultation. To learn about the rest of our equipment, visit the technology overview, or contact the clinic to book an implant or wisdom tooth consultation.