Cone Beam Computed Tomography (CBCT) scans are the latest imaging technology used in dentistry that lets doctors see a 3D image of a patient’s bones, teeth and roots.

Traditional dental X-rays have been used for decades by dental professionals to create treatment plans, but advancements in technology have made CBCT scanners a cost effective investment for many doctors. CBCT scans offer several advantages over conventional X-rays, especially for complex cases or detailed diagnostics. Here’s a comparison between the two technologies:
3D Imaging vs 2D Imaging
- CBCT scans provide three-dimensional images of teeth, bones, soft tissues, and nerve pathways that can be viewed from different angles.
- X-rays appear in two dimensions and only provide a limited view of dental anatomy.
Greater Diagnostic Detail
- CBCT scans can detect subtle abnormalities and provide detailed views of impacted teeth, root positions, jawbone structures, sinuses, and TMJ disorders.
- With X-rays it’s harder to see abnormalities that can be missed due to the limitations and quality of the radiograph.
Improved Treatment Planning
- CBCT offers enhanced detail aids for precise planning for procedures such as custom braces, dental implants, root canals, and wisdom teeth extractions
- X-rays cannot provide this level of detail
Evaluation of Bone Quality and Density
- CBCT can assess bone density, which is crucial for placing implants and evaluating jawbone health.
- X-rays are limited in their ability to show bone density
Assessment of Airway and Sinuses
- CBCT scans can measure airways and evaluate obstructions, which is helpful when diagnosing and managing sleep apnea and other breathing-related issues. Sinus health can also be assessed.
- X-rays cannot measure airways and evaluate obstructions, and only provide a limited view of the sinus cavity.
Accurate Nerve Mapping
- CBCT can precisely map nerves to minimize the risk of causing nerve damage during surgical procedures like extractions or implant placement.
- X-rays cannot map nerves
Reduced Distortion
- CBCT scans eliminate the geometric distortion seen in 2D X-rays, offering accurate spatial relationships and measurements.
Efficient Imaging of Large Areas
- A single CBCT scan can capture the entire maxillofacial region
- Multiple 2D X-rays may be needed to gather similar information.
Advantages of Traditional X-rays
While CBCT scans have many advantages, traditional X-rays still have their place in dental and orthodontic care:
- Lower Radiation Exposure. Conventional X-rays typically expose patients to less radiation compared to CBCT scans.
- Cost-Effectiveness. X-rays are generally more affordable and widely accessible for basic diagnostics, which can result in lower fees charged to the patient for taking records.
- Simplicity and Speed: For routine check-ups and straightforward cases, X-rays are faster.