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