INFECTION CONTROL IN DENTAL LAB

PRESENTED BY:ANKIT PRABHAKARGENESIS INSTITUE OF DENTAL SCIENCES AND RESEARCH,FEROZEPURPUNJAB

CONTENTS1

4

2

3

Introduction

Scope and objectives

Transmission of infection

Clinical and laboratory disinfection

5 CDC dental guidelines for sterilization of instruments

INTRODUCTION

• A study has found that 67% of materials sent from dental office to laboratories were

contaminated with bacteria of varying degree of pathogencity.`

Why do we need to know about infection control?

Scope of this presentation

Dental care health personnel

Dental assitants

Dental technicians

Dental Students

Dental camps patients

Occupational Risks

Direct conta

ctAirborn

e infectio

n

• From microbial

laden aerosols

spatter

• During lab procedures

• When using knives and other sharp items

• Infected saliva or blood

CHAIN OF INFECTION

Pathogen Reservoir

Direct contact

Indirect contact

Portal of entry

Susceptible host

GOALS/ ACTIONS

Make dental lab safe

Minimize potential

IC compliance

ImmunizationBarrier techniquesAseptic techniques

Transmission of infection

Transmission of

infection

IMPRESSION

ARTICULATOR

CASTS

DENTAL PROSTHESIS

OCCLUSAL RIMS

IMPRESSION TRAYS

• Prevention of cross contamination should always be a prime consideration in the dental lab.

Infection control precautions

• Appropiate personal protective equipment

• Frequent hand hygiene

• Organization of dental lab into separate receiving , production & shipping areas.

BARRIER SYSTEMS

Plain or antimicrobial soap

Or an alcohol based hand rub

Personal Protective equipments

Gloves

Mask & protective eye wear

Chin length face shield

Labcoat

Hand washing

Disinfection of impressionsIMPRESSION

COMPOUNDIodophors and sodium hypochlorite

REVERSIBLE HYDROCOLLOID

Iodophors and sodium hypochlorite

IRREVERSIBLE HYDROCOLLOID

Iodophors and sodium hypochlorite

POLYETHER Iodophors and sodium hypochlorite

ZOE IMPRESSION PASTE

Glutaraldehydes, iodophors

POLYSULFIDE Glutaraldehydes, iodophors

SILICONE Glutaraldehydes, iodophors

CHOICE OF DISINFECTANT

Disinfectant

Must be an effective

antimicrobial agent

EPA registered number

Dimensional

accuracy

Intermediate level of

activity

Methods of disinfection

Spraying

Uses less disinfectan

t

Same disinfectant can be used

again

Immersion

preferrable

Exposure of all

surfaces

METHODS OF DISINFECTION

DENTAL LAB PROCEDURES

INCOMING ITEMS

Rinse to remove blood & saliva

Disinfect Again rinse to remove

disinfectant

Add the annotate form

ORALLY SOILED PROSTHESIS

Scrub with brush and antimicrobial soap.

Place in plastic bag in ultrasonic cleaning solution.

Removed Rinsed Dried

Accomplished required work.

DENTAL PROSTHESISDo not exceed the

recommended contact time to minimize

corrosion.

Do not store in disinfection before

insertion.

Store in diluted mouthwash until

insertion.

DISINFECTION OF CASTSMost difficult to disinfect without causing damage.

Rinsed, handled in aseptic manner

Transfer to the production area.

Dry properly, if shipping.

LAB EQUIPMENTS

Polishing lathe requires specialattention.

Pumice has been shown to pose a potential contamination risk

Via aerosol or direct contact

This act as a barrier in the path of cross contamination.

Objectives - protect patients, practitioners , & staff.

All blood and saliva is infectious.

Reviews scientific information & makes recommendations to protect the health of the population.

Tracks disease trends & investigates disease outbreaks

CDC DENTAL GUIDELINES

RESPONSIBILITY

Responsibility

Practical code

Procedure kept cross infection control

Universal precautions

Protect exposure

from blood

Standard precautions

Blood as well as from body fluids also.

GENERAL PREVENTION

VACCINATION MEDICAL HISTORY

HIV HBV HCV0

5

10

15

20

25

30

Average Risk of Transmissionafter Percutaneous Exposure to Blood

• In order to identify pathological conditions,

• Drug induced conditions

• Malformations & abnormalities

SPECIFIC GUIDELINES

Personal hygiene

Cleaning and maintainance

Disposal of wastes

These guidelines apply in the care of all patients.

SUMMARY

PREVENTION OF DISEASE TRANSMISSION

Aseptic techniq

ues

Wearing protective personal

equipments

Adhering to

Standard precautio

ns

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