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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.

While CBCT scans provide a comprehensive, 3D view that is invaluable for advanced diagnostics and precise treatment planning, traditional X-rays remain a practical and cost-effective tool for everyday dental care.