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Elements and Performance Criteria
Performance Evidence
Knowledge Evidence
The candidate must be able to demonstrate essential knowledge required to effectively complete tasks outlined in elements and performance criteria of this unit, manage tasks and manage contingencies in the context of the work role. This includes knowledge of:
• Australian/New Zealand Standards, workplace health and safety (WHS) policies, Dental Board of Australia guidelines on infection control, Commonwealth legislation and State/Territory legislation, and organisation policies relating to dental laboratory work • requirements and organisation policies relating to dental laboratory work including:- use of standard precautions to minimise risk- use of personal protective equipment (PPE) including disposable gloves, laboratory coat and eye protection- decontamination of impressions- minimising hazardous manual tasks- requirements for storage of model material- safe disposal of packaging materials• fundamental oral anatomy, including:- dentition – arrangement of the teeth, naming and coding of teeth- structures of the oral cavity – hard and soft palate, lateral and posterior borders of the oral cavity, tongue and floor of the mouth- teeth form and function• properties of elastic impression materials including:- alginate impression material- polyether impression material- polysulphide impression material- polyvinyl siloxane impression material• properties of rigid impression materials including:- impression compound- zinc oxide-eugenol impression pastes• desirable properties of model materials including:- accurate reproduction of all details of the impression- colour contrast with other materials used on them- ease of manipulation- sufficient strength and hardness- suitability for use with all types of impression materials• significance of study models for:- dentate and partially dentate mouths- edentulous mouths.