Contamination within the Dental Surgery Flashcards
on which surfaces might blood be found on in the dental surgery?
- 3 in 1 syringe button
- tap handles
- light handle
- operating cast handles
what is the Spaulding Classification?
the Spaulding Classification puts medical devices into categories, depending on the risk associated
what is meant by critical classification? (spaulding)
- high risk
- items in contact with normally sterile body sites
- require sterilisation
what is meant by semi-critical classification? (Spaulding)
- medium risk
- items in contact with intact mucous membranes
- require high level disinfectant
what is meant by non-critical classification? (Spaulding)
- low risk
- items in contact with intact skin
- low level disinfection
what is meant by minimal risk medical devices?
items not normally in contact with intact skin
what are examples of critical classification devices used in the dental surgery?
- forceps
- periodontal scaler
what are examples of semi-critical classification devices used in the dental surgery?
- dental hand piece
- dental mirror
- dental impression trays
what is an example of a non-critical classification device that is used in the dental surgery?
light curing device
what equipment would classify as minimal risk within the dental surgery?
dental chair
what is meant by Housekeeping Surfaces/Non-clinical surfaces within the dental surgery?
Surfaces not directly touched during dental treatment & these carry the lowest risk of disease transmission
what are examples of non-clinical/housekeeping surfaces found within the dental surgery?
- walls
- floor
- sink
what is meant by clinical contact surfaces found within the dental surgery?
Surfaces contaminated from patient materials, either by direct spray or splatted generated during dental procedures or by contact with gloved hands of dental health care professional
what are examples of clinical contact surfaces found within the dental surgery?
- dental light handles
- bracket table
- handles of cupboards/drawers
how long do the Influenza A/B viruses survive on steel & plastic?
24-48 hours
how long do the Influenza A/B viruses survive on cloth, paper & tissues for?
<8-12 hours
how long can transmission of Influenza A/B viruses occur between virus on:
- steel to hands
- paper tissue to hands
- hand to hand
Steel to hands = over 24 hours
Paper tissue to hands = 15 mins
Hand to hand = approx. 5 mins
what are the EU detergent regulations in place?
- wipes must be biodegradable
- specific labelling requirements
- provision of data
- restriction on phosphates
what are required for the physical removal of contamination?
- time
- water
- mechanical action
- temperature
- detergency
