Sterilisation and disinfection questions
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Transcript of Sterilisation and disinfection questions
Sterilisation and disinfection questions
Sterilisation is the killing of all...?
bacteria
fungi
spores
virus
Micro organisms
Fungi from distilled water
Streptococci – sore throat & caries
Shapes of micro organisms
Define the term “CROSS INFECTION CONTROL”
Discuss 3 methods used to prevent cross infection
Cross infection control.....
THE PREVENTION OF TRANSFER OF MICRO-ORGANISMS FROM ONE PERSON TO ANOTHER
3 forms of prevention are;
Use of disposable items
Disinfection
Sterilisation
Define each of these forms of prevention
How should a scalpel be disposed of and why?
scalpel
Carefully re-sheathed by dentist
Carefully handled by DN
Place immediately after use into the sharps bin
To prevent sharps injury
A micro-organism capable of producing a disease is known as...
A) bacteriostatic
B) pathogenic
C) autoimmune
D) bactericidal
pathogenic
List five diseases DCP’s must be vaccinated against
Vaccinations for DCP’s
Whooping cough Polio Diphtheria Hepatitis B MMR Influenza
Types of waste in the surgery are:
Non Hazardous
Hazardous
Special waste
identify these
Non hazardous waste
Items used in the surgery which have not been contaminated in the patients mouth
What could these items be?
Hazardous waste
Items which have been contaminated from the patients mouth
What could these be?
Special waste
Materials and equipment which cannot be placed in either non hazardous or hazardous waste
What could these be?
Where would the following items be placed and why?
Lead foil from x-ray film packets?
Special waste
Empty glass local anaesthetic cartridge?
Sharps bin
Stock packaging
Empty box?
Domestic waste
Waste amalgam
Amalgam safe pot/sludge drums
Endodontic hand instruments
Sharps bin
Define the term “DISINFECTION”
disinfection
The destruction of bacteria and fungi but not spores and some viruses
How is this achieved?
Disinfection
Isopropyl alcohol wipes
Ultrasonic bath
Washer disinfector
Disinfection bath
What do we know about these?
Sharps injury
What should we do when this incident occurs?
OUCH!!
Sharps injury
Stop immediately Remove glove Hold finger under running tap and
squeeze wound to encourage bleeding NEVER SUCK THE WOUND Cover with waterproof dressing Check patients medical history Contact Occupational Health for advice
and have patients details to hand Answer questions from occ health nurse
Some dental products are sterilised industrially, how is this done?
What items do we know have been pre-sterilised?
Industrial sterilisation – ethylene oxide gas
Industrial sterilisation – gamma radiation
Pre sterilised materials and equipment
Cotton wool rolls/pellets Needles Disposable scalpels Sutures Local anaesthetic solution Disposable syringes
Disposable items
Expensive Would help in the control of infection Items available for use in the surgery
are .....?
disposashields
offering barrier protection to those awkward handpiece assemblies. Furthermore, avoiding the use of chemical disinfectant may prolong the life of plastic coverings.
T H E E N D