What type of imaging technique uses a higher dose of radiation and is only used when diagnostically warranted?

Cone beam computed tomography (CBCT) is an advanced imaging technique that utilizes a higher dose of radiation compared to other modalities such as standard X-rays or panoramic radiography. This technique generates three-dimensional images of dental structures, soft tissues, nerve pathways, and bone in a single scan.

The higher radiation dose is justified because CBCT provides critical diagnostic information that is not possible to obtain through traditional two-dimensional imaging. It is particularly useful in complex cases like implant planning, evaluating temporomandibular joint disorders, and assessing jaw pathology. Consequently, its use is typically limited to specific clinical situations where the benefits of the detailed visualization outweigh the risks associated with increased radiation exposure.

In contrast, imaging methods like standard X-rays and panoramic radiography usually involve lower doses of radiation and are more routinely used for general diagnostic purposes. Cephalometric radiography, while important in orthodontics for evaluating skeletal and dental relationships, also involves lower radiation doses. Therefore, the elevated radiation dose of CBCT is only warranted in particular diagnostic scenarios, making it a specialized tool in dental imaging.