Legionella Control for Dental Practices

Legionella control in dentistry is a complex subject and requires detailed knowledge of dental procedures and the operation of dental equipment to be effective. The issue is included in Care Quality Commission (CQC) audit checklists and the risk assessment and control scheme needs to take into account the requirements of:

  • ACoP L8 and the associated technical guidance set out in HSG274 Parts 2 and 3
  • HTM 01-05: Decontamination in primary care dental practices and
  • HTM 04-01: The control of legionella, hygiene, "safe" hot water, cold water and drinking water systems

The asessment should include all water services and systems with particular attention paid to the operation of dental chairs and other dental equipment which use water as the greatest risks associated with legionella (and other opportunistic pathogens) are associated with dental procedures.

Biofilm removal from dental unit water lines (DUWL's) and the cleaning and disinfection of distillers and intermediate storage bottles are key issues. Mildew colonisation of surgery outlets requires particular attention.

The requirements of water suppliers for adequate backflow protection of the mains supply must be taken into account and good record keeping is essential.

With more than 600 primary healthcare clients Watertec engineers are acknowledged experts in supplying effective legionella control solutions to the dental sector.