INFECTION CONTROL - managing AGPs Flashcards
how many covid cases were asymptomatic?
20%
what is an aerosol?
suspension of a solid or a liquid within a gas
what is a splatter defined by?
droplets >5um (travel up to 1m)
what is an aerosol defined by?
droplet nuclei <5um - can stay airborne for long periods of time
what is an AGP?
procedure that results in the production of airborne particles <5um (aerosol) which can remain suspended in the air, travel over a distance and may cause infection if they are inhaled
what is bioaerodol?
contaminated air with use of high speed air turbine and USS
what are the SDCEP groups of aerosols?
group A - produce aerosol particles <5um
group B - aerosol particles <5um with the amount depending on instrument use
group c - produce splatter but unlikely to produce aerosol particles <5um
what dental instruments are classed as group a?
USS
high speed
piezo surgical handpieces
air polishers
3-in-1
what dental instruments are classed as group b?
3-in-1 air only/ water only
slow speed
prophylaxis with pumice
surgical handpiece
what dental instruments are classed as group c?
extraction
hand scale
inhalation sedation
imps
IO radiographs
LA
what group of instruments need fallow time?
group a
what drill speed has been found to produce minimal aerosol?
<60000rpm
why can red rings be used to minimise aerosol?
water irrigation without air
can control speed of rotation of bur
