3D CBCT scans

How does a CBCT scan work?

CBCT scanners send lots of X-ray beams from different angles to capture different images of the mouth and jaw. As they pass through the body, the strength of the beams are measured to determine the density of bone or tissue. A computer then uses this information to process the results and display them as detailed 3D images of the jaw.

Are CBCT scans safe?

CBCT scans are non-invasive and completely painless. They use more radiation than a normal X-ray, but considerably less than a conventional CT scan. The amount of radiation is very small and is unlikely to cause any long-term harm. Your dentist may not recommend you have a CBCT scan if you’re pregnant.

Why are CBCT scans used for dental implants?

A normal X-ray can’t measure bone depth, thickness or density. 3D CBCT scans measure all three, plus the depth of bone near your nerve canals and sinus cavities. All of this information is presented to your dentist in a 3D view.

Using a 3D dental CBCT scan and examining the images from every direction helps your dentist to accurately plan the placement of your dental implants. It’s also an effective way to establish whether you’re suitable for dental implants. This is because it shows your dentist the exact bone depth, width, density and condition of your jawbone.

What happens when you have a CBCT scan?

The scanner is either shaped a bit like a large doughnut or a square. Unlike an MRI scanner, you don’t have to lie inside a tunnel. You’ll either sit or lay still on a bed or chair, depending on the machine, and the machine rotates around your head. The scan itself takes less than a minute, and your appointment will probably last around 10 minutes.

You don’t need to prepare anything before you have your CBCT scan. When you arrive for your appointment, you’ll be asked to take off anything that may interfere with the imaging process, such as jewellery, glasses, hair grips or hearing aids. If you wear dentures, you may need to remove these during the procedure.

If you’re claustrophobic or anxious, speak to your dentist. They will offer you the support and advice you need, and they’ll help put you at ease during the procedure.