Article: Volume 48 Number 6 Page 443 - June 2021

  Dent Update 2021; 48: 443-448  Read article

Radiography:  An Update on Radiation Protection and the Ionizing Radiation Regulations

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Abstract: In this article, the risks associated with dental X-ray examinations, the doses from different types of dental x-ray examinations, the principles of radiation protection and the key points set out in the IRR 17 and IRMER 17 legislation, with emphasis on the relevant changes between these new sets of legislation and the preceding IRR 99 and IRMER 2000 legislation, are considered.

Clinical relevance: An update and overview for the dental team on radiation protection and the relevant legislation.

Author notes: Lee W Feinberg, BDS (Hons), MFDS RCS, DDMFR RCR, PGCLTHE, Consultant in Dental and Maxillofacial Radiology, Kings College Dental Hospital. Paul P Nixon, BDS, FDSRCS(Eng), DDRRCR, Consultant in Dental and Maxillofacial Radiology, Liverpool University Dental Hospital. email:

Objective: To understand the risks, doses and principles of radiation protection associated with dental X-ray examinations and highlight changes in new legislation.