What is a disadvantage associated with CBCT?

• A. High-resolution imaging
• B. Limited scanning ability to head and neck
• C. Low patient capacity
• D. Longer exposure times

Answer: (B)

The disadvantage associated with Cone Beam Computed Tomography (CBCT) is its limited scanning ability primarily to the head and neck regions. CBCT technology is specifically designed for applications involving dentistry, oral and maxillofacial surgery, and certain ENT (Ear, Nose, and Throat) scenarios, which restricts its utility compared to traditional CT scans that can image a broader range of anatomical regions in the body. This limitation can be significant in clinical settings where comprehensive imaging of areas beyond the head and neck is required.

High-resolution imaging is a characteristic of CBCT, which allows for detailed visualization of structures, especially those related to dental and orthodontic assessments. Low patient capacity does not accurately reflect a fundamental disadvantage of CBCT since it can often be used effectively in various patient settings depending on operational protocols. Longer exposure times may vary based on the specific equipment and protocols used, but they are not universally applicable limitations of CBCT, especially when it offers competitive exposure times compared to other imaging modalities.