Which technique is used to properly visualize root canals during therapy?

The technique used to properly visualize root canals during therapy is radiographic imaging. This method involves taking X-rays to provide a clear view of the internal structure of the tooth and its roots. Radiographs help clinicians assess the size, shape, and number of root canals, identify any infections or abnormalities, and plan effective treatment. They are essential during root canal therapy as they offer a detailed representation of the tooth anatomy, allowing for precise interventions.

Intraoral photography can be useful for documentation and patient education but does not provide the internal details necessary for root canal therapy. Digital scanning, while beneficial for capturing external tooth surfaces and for creating models for prosthodontics, lacks the capability to visualize internal root canal systems. Clinical examination, although important for assessing the overall oral environment, does not provide the detailed internal view that radiographic imaging offers. Thus, radiographic imaging is the most appropriate and effective technique for visualizing root canals during therapy.