What is the potential risk?

CBCT systems are a method of radiography used in dentistry when traditional X-ray methods are not expected to provide sufficient clinical data. CBCT emits a higher dose of radiation than tradi- tional X-rays used in dentistry, which may put workers at risk of illness due to radiation exposure.

CBCT emits a cone-shaped X-ray beam, which may scatter when it hits the patient. Workers may be exposed to X-ray radiation when operating the machine if proper controls are not used.

The use of CBCT technology in dental applications is increasing in B.C.

Workers at risk include dental assistants, X-ray technicians, dentists, or others working near operating CBCT equipment.

Which industries may be at risk?

• Dentistry

How can I reduce the risk in my workplace?

As an employer, you need to know if there is the potential for the risk identified in this advisory to be present in your workplace. It’s your responsibility to regularly inspect your workplace, and to ensure that your safety procedures and practices control the risk. The following information highlights some of the sections of the Occupational Health and Safety (OHS) Regulation and Guidelines that are most relevant to this risk.

Section 7.20 of the OHS Regulation deals with exposure to ionizing radiation. This section requires the employer to implement an exposure control plan (ECP) in accordance with section 5.54 of the regulation.

In addition, sections 7.22–7.24 require additional measures that the employer is required to take to ensure the safety of its workers.