When it comes to dental imaging, a dental CBCT (Cone Beam Computed Tomography) scan can offer far more than a three-dimensional view of the teeth. By providing detailed visualisation of the teeth, jaws and surrounding anatomical structures, CBCT imaging can support clinical assessment and treatment planning across a range of dental and maxillofacial applications.

But what can a dental CBCT scan actually reveal, and why is understanding the wider field of view so important?

1. A clearer picture of complex anatomy

One of the key advantages of CBCT imaging is its ability to display anatomical structures in three dimensions. Unlike conventional two-dimensional radiographs, a CBCT scan allows clinicians to examine an area from multiple perspectives, helping to clarify anatomical relationships that may be difficult to assess on a single projection.

This can be particularly useful when evaluating impacted teeth, assessing the relationship between tooth roots and adjacent structures, or investigating complex anatomy before treatment.

By providing a more detailed understanding of the area being examined, CBCT imaging can help clinicians answer specific clinical questions and plan appropriate next steps.

2. The relationship between teeth and the inferior dental nerve

The inferior dental nerve is an important anatomical structure to consider during certain dental procedures, particularly implant placement and the removal of lower wisdom teeth.

CBCT imaging can help visualise the course of the mandibular canal and its relationship to tooth roots, available bone and proposed implant positions.

Understanding these anatomical relationships can support preoperative assessment and help clinicians identify relevant considerations before proceeding with treatment. Careful interpretation remains essential, as the visibility of the canal and nerve anatomy can vary between patients and scans.

3. Bone volume and dental implant planning

Successful implant planning involves more than identifying a suitable position for an implant. Clinicians must also assess the available bone, surrounding anatomy and proximity to important structures.

CBCT imaging provides cross-sectional views of the jaw, allowing the height, width and morphology of the available bone to be assessed in three dimensions.

This information can help clinicians evaluate potential implant positions, identify anatomical limitations and determine whether further assessment or alternative treatment planning may be appropriate.

4. Impacted teeth and their surrounding structures

Impacted teeth, including unerupted canines and wisdom teeth, can present complex assessment challenges.

A CBCT scan may help clarify the position and orientation of an impacted tooth, its relationship to neighbouring teeth, and its proximity to surrounding anatomical structures.

This additional information can be particularly valuable when conventional imaging does not adequately answer the clinical question or when a more detailed understanding of the anatomy could influence treatment planning.

As with all dental imaging, the decision to use CBCT should be based on individual clinical need and whether the additional information is likely to affect patient management.

5. The temporomandibular joints and bony structures

CBCT imaging can provide detailed visualisation of the bony components of the temporomandibular joints (TMJs), which connect the lower jaw to the skull.

When imaging is clinically indicated, it can help assess osseous features such as joint surface changes, remodelling and other bony abnormalities.

However, CBCT has limitations when it comes to soft tissues, including the articular disc. Other imaging methods, such as MRI, may be more appropriate when the clinical question concerns soft-tissue structures.

Choosing the right imaging modality depends on the symptoms, clinical findings and information required.

6. Incidental findings beyond the original area of interest

Sometimes, dental imaging reveals features that were not the primary reason for the scan. These are known as incidental findings.

Depending on the scan coverage and image quality, these may include findings involving the paranasal sinuses, surrounding bone or other visible anatomical structures.

Recognising and appropriately managing incidental findings is an important part of radiological assessment. Some findings may be of no clinical significance, while others may require further investigation or referral.

The entire acquired volume should be assessed and reported in accordance with the applicable clinical and professional requirements, rather than focusing solely on the original area of interest.

7. Supporting a more informed treatment plan

The real value of CBCT imaging lies not simply in the amount of anatomical detail it provides, but in how that information can help answer a specific clinical question.

From assessing the position of impacted teeth to evaluating bone anatomy for implant planning, three-dimensional imaging can support a more comprehensive understanding of selected cases.

However, a CBCT scan is not required for every dental assessment. The decision to request one should always be justified by the individual clinical circumstances, with consideration given to radiation exposure, the expected diagnostic benefit and whether an alternative imaging method would be sufficient.

Making the most of dental CBCT imaging

CBCT imaging has an important role in modern dentistry when detailed three-dimensional information is needed to support diagnosis, assessment or treatment planning.

Understanding the anatomy visible within a scan, recognising the limitations of the imaging method and ensuring that findings are appropriately assessed are all essential parts of the process.

At Cavendish Imaging, we provide dental imaging services to support clinicians in obtaining the information needed for appropriate patient care.

Considering a dental CBCT scan for a patient? Contact Cavendish Imaging to discuss our imaging services and referral process.

Clinical note: The appropriate use of CBCT depends on individual clinical justification, the area requiring assessment and applicable radiation-protection guidance. This article is intended for general educational purposes and does not replace individual clinical judgement.