Radiological Protection in Cone Beam Computed Tomography (CBCT)

Draft document: Radiological Protection in Cone Beam Computed Tomography (CBCT)
Submitted by TOURNIER, RAMIP (association of workers of radiological protection from Midi Pyrénées (France))
Commenting on behalf of the organisation

The rapidly increasing use of CBCT necessitates a document that deals with the radiation protection of patients and worker. This report is indispensable.

The fact that the ways to protect workers was clearly indicated (leave the door …) is a very good tool for the workers of radiological protection.

Put the emphasis on radiosensitive organs (for workers and patient) will help the workers of radiological protection to communicate about the radiological risk.

It is necessary to empower manufacturers but it is also essential to educate users recalling CBCT should provide additional diagnostic (more than a 2D system): thus, patients should be better protected. The protection of the patients should be obtained by Quality Controls.

To protect patient, we need also to know the doses given by the CBCT.


This document recalls many principles of radiological protection but it is fundamental to help professionals of radiological risk to protect the workers.

However, some topics could be expanded; in particular the users. In France, the dentists, users of CBCT, are not enough trained for radiological protection of patients, workers, and do not always want to learn. The situation is better in France since the training to CBCT is obligatory to the radiological acts be paid (French system social).


Often, the technical sales teaches to the dentist to use the CBCT but not how reduce the dose. To empower the manufacturer is not sufficient : the technical must be trained in the radiological protection. French law provides this case but it is not applicate.



Often the assistant dental uses the CBCT without formation while it is not authorized in France. More authority controls could be necessary.

We think that a better training and limiting the use of CBCT in an established list could be considered.