Dental Radiography Module 5

Question 1

when did ionising radiation regulation get updated?

Answer 1

The Ionising Radiations Regulations 1999 updated 1st

January 2018 now IRR17

Question 2

What does IRR17 regulation cover?

Answer 2

Concerned principally with the safety of workers and the general public but
also addresses the equipment aspects of patient protection

Question 3

what is the five-step approach is recommended by the HSE?

Answer 3

1. Identify the hazards (i.e. routine and accidental exposure to X-rays).
2. Decide who might be harmed and how they might be affected.
3. Evaluate the risks and decide whether existing precautions are adequate or whether
   more precautions need to be taken, Implement additional precautions, if needed.
4. Record the findings of the risk assessment.
5. Review the risk assessment and revise it, if necessary.

Question 4

Restriction of exposure should always be….?

Answer 4

As low as reasonably practicable (ALARP)

Question 5

What is the radiation protection advisor responsible for RPA?

Answer 5

Implementation of Controlled and Supervised Areas (e.g. signage)
Prior examination of plans for installations and the acceptance into service of new or
modified sources of radiation in relation to safety and warning features
Regular calibration of equipment provided for monitoring levels of ionising radiation
Regular checking of systems of work provided to restrict exposure to ionising radiation
Employermust consult RPA on the following matters
Risk assessment
Designation of controlled areas
Conduct of investigations
Drawing up of contingency plans
Quality Assurance programs

Question 6

Radiation Protection supervisor RPS is responsible for?

Answer 6

Must have a knowledge of regulations and Local Rules
• Understanding of precautions required and extent to which these will restrict
exposures
• Assess risks
• Supervises all aspects of radiography within the practice
• Ensures precautions for minimising
• Normally the dentist but could be
• Registered dental nurse
• Hygienist
• Therapist
Must have radiography certificate

Question 7

Radiography is required for CPD as is a core subject, how many hours?

Answer 7

5 hours every 5 years