What Is a CT Scan in Odontology?

Modern dentistry has advanced far beyond simple X-rays. Today, dental professionals use a wide range of imaging technologies to diagnose and plan treatments more accurately. One of the most important innovations in this field is the CT scan, also known as Cone Beam Computed Tomography (CBCT) in odontology.

What Is a CT Scan in Dentistry?

A CT scan in odontology is a special type of 3D imaging that provides highly detailed pictures of your teeth, jawbone, nerves, and surrounding structures. Unlike traditional dental X-rays that only show flat, two-dimensional images, a dental CT scan creates a complete 3D model of the mouth.

This technology uses a cone-shaped X-ray beam that rotates around your head to capture hundreds of images, which are then combined into a single 3D view. Dentists and specialists use this information to diagnose problems, plan treatments, and perform procedures with more accuracy.

When Is a Dental CT Scan Recommended?

Not every dental patient needs a CT scan, but it is often recommended in situations where more detailed imaging is required, such as:

• Dental implant planning – to evaluate bone structure, density, and location of nerves.
• Wisdom teeth extraction – to see how close teeth are to nerves or sinuses.
• Orthodontic treatment – to study tooth position and jaw relationships.
• Endodontics (root canal treatment) – to identify hidden canals, fractures, or infections.
• Jaw problems (TMJ disorders) – to analyze bone structure and joint function.
• Pathology detection – to check for cysts, tumors, or other abnormalities.

Benefits of a CT Scan in Odontology

Dental CT scans provide several advantages over traditional imaging techniques:

• 3D accuracy – Dentists can see the exact position of teeth, nerves, and bone.
• Better treatment planning – Especially for implants, surgeries, and orthodontics.
• Early detection of problems – Such as infections or abnormalities not visible on X-rays.
• Safety – Uses lower radiation compared to a medical CT scan.
• Quick and painless – The scan usually takes less than a minute.

How Does the Procedure Work?

A dental CT scan is simple, fast, and non-invasive. Here’s what typically happens:

1. You will be asked to sit or stand still inside the CBCT machine.
2. The scanner rotates around your head, capturing images from different angles.
3. The process takes 20–40 seconds, depending on the machine.
4. The dentist receives a 3D model of your oral structures almost immediately.

There’s no pain or discomfort, and you can return to normal activities right away.

Are Dental CT Scans Safe?

Yes, dental CT scans are generally considered safe. They use much less radiation than a full medical CT scan of the body, and dentists only recommend them when necessary for diagnosis or treatment.

However, like all imaging that involves radiation, they are not recommended unless there’s a clear benefit. For pregnant patients, special precautions are taken.