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Evidence Guide: HLTDT508C - Construct removable acrylic partial dentures

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

HLTDT508C - Construct removable acrylic partial dentures

What evidence can you provide to prove your understanding of each of the following citeria?

Design acrylic removable partial denture

  1. Confirm the survey of the model carried out by the operator
  2. Confirm design and transfer to master model
  3. Block-out undesirable undercuts
  4. Scribe food lines
  5. Duplicate master cast to create a working model
Confirm the survey of the model carried out by the operator

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Confirm design and transfer to master model

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Block-out undesirable undercuts

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Scribe food lines

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Duplicate master cast to create a working model

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select and prepare materials

  1. Select materials according to laboratory prescription
  2. Establish shape and dimension of component parts from design
Select materials according to laboratory prescription

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Establish shape and dimension of component parts from design

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Arrange artificial teeth

  1. Select teeth and position in wax to establish aesthetics and function
  2. Contour wax so that dentures are suitable for try-in
  3. Decontaminate according to infection control guidelines and place in a suitable container for dispatch
Select teeth and position in wax to establish aesthetics and function

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Contour wax so that dentures are suitable for try-in

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Decontaminate according to infection control guidelines and place in a suitable container for dispatch

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Construct retainer units

  1. Construct components as required
  2. Join components as required
  3. Secure teeth and components in wax
  4. Contour facial and lingual aspects
  5. Secure appliance for processing
Construct components as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Join components as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Secure teeth and components in wax

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Contour facial and lingual aspects

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Secure appliance for processing

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select and prepare materials and processing technique

  1. Identify the appropriate polymer system for case
  2. Identify the appropriate investment technique
  3. Identify the appropriate processing cycle
  4. Select polymeric material to construct the prosthesis
  5. Prepare system components in accordance with manufacturer's instructions
  6. Allow materials to reach application stage
Identify the appropriate polymer system for case

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify the appropriate investment technique

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify the appropriate processing cycle

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select polymeric material to construct the prosthesis

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare system components in accordance with manufacturer's instructions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Allow materials to reach application stage

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Process denture or appliance

  1. Apply appropriate investment techniques
  2. Apply material to mould
  3. Process the polymeric material for the correct length of time at the correct temperature
  4. Devest model and remove any processing irregularities and sharp edges before fitting onto master casts
  5. Confirm accuracy of retainer units
Apply appropriate investment techniques

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Apply material to mould

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Process the polymeric material for the correct length of time at the correct temperature

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Devest model and remove any processing irregularities and sharp edges before fitting onto master casts

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Confirm accuracy of retainer units

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria, Required Skills and Knowledge, the Range Statement and the Assessment Guidelines for this Training Package.

Critical aspects for assessment and evidence required to demonstrate this competency unit:

The individual being assessed must provide evidence of specified essential knowledge as well as skills

Assessment should replicate workplace conditions as far as possible

Consistency of performance should be demonstrated over the required range of workplace situations

Context of and specific resources for assessment:

Assessment should replicate workplace conditions as far as possible

Where, for reasons of safety, access to equipment and resources and space, assessment takes place away from the workplace, simulations should be used to represent workplace conditions as closely as possible

Method of assessment

It is necessary to assess evidence of required knowledge. This may be provided by:

verbal questioning at the time of demonstration of required

traditional or online (computer-based) assessment

written assignments/projects

Case study and scenario as a basis for discussion of issues and strategies to contribute to best practice

Staff and/or client feedback

Supporting statement of supervisor

Authenticated evidence of relevant work experience and/or formal/informal learning

Role play/simulation

Access and equity considerations:

All workers in the health industry should be aware of access and equity issues in relation to their own area of work

All workers should develop their ability to work in a culturally diverse environment

In recognition of particular health issues facing Aboriginal and Torres Strait Islander communities, workers should be aware of cultural, historical and current issues impacting on health of Aboriginal and Torres Strait Islander people

Assessors and trainers must take into account relevant access and equity issues, in particular relating to factors impacting on health of Aboriginal and/or Torres Strait Islander clients and communities

Related units:

This unit may be assessed with other units which make up a job role

Required Skills and Knowledge

This describes the essential skills and knowledge and their level required for this unit.

Essential knowledge:

The candidate must be able to demonstrate essential knowledge required to effectively do the task outlined in elements and performance criteria of this unit, manage the task and manage contingencies in the context of the identified work role

This includes knowledge of:

Applied oral anatomy:

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

Advantages and disadvantages of partial dentures

Fundamental knowledge of dental polymers including:

acrylic and modified acrylic prosthetic teeth

acrylic plastics as soft liners

acrylic plastics for denture bases including composition and properties

acrylic-metal combinations

acrylics for construction of custom trays

modified acrylic denture base plastics including manipulation and processing

the polymerisation process including cross-linked polymers, copolymers, modified polymers and vinyl plastics

Infection control guidelines for the decontamination of completed laboratory work

Principles of partial denture design

Surveying techniques

Stages in the design of partial dentures:

classifying, supporting and outlining the saddles

connecting the various components together

providing additional components where necessary to resist rotation

providing reciprocation and bracing

providing retention

reviewing the design for hygiene, support and retention

Essential skills:

It is critical that the candidate demonstrate the ability to

Consistently comply with current infection control guidelines, Australian Standards and legislative requirements as they relate to the dental technician's specific job role

Consistently comply with occupational health and safety policies and procedures as they relate to the dental technician's specific job role

Consistently produce acrylic partial dentures suitable for insertion in the mouth

Consistently comply with relevant legislative requirements

In addition, the candidate must be able to effectively do the task outlined in elements and performance criteria of this unit, manage the task and manage contingencies in the context of the identified work role

This includes the ability to:

Consistently follow infection control guidelines and safe work practices during the set-up and waxing of partial dentures

Consistently follow sequenced written instructions and manufacturer specifications for the preparation of materials

Consistently interpret and follow the laboratory prescription

Select procedures for partial denture construction

Use appropriate practices to ensure efficient use of power and other resources

Use literacy skills to read and follow directions, policies and procedures including:

laboratory policies and procedures

material safety data sheets

Range Statement

The Range Statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance.

Component partsmay include:

Connectors

Direct retainers

Occlusal rests and similar components

Saddles