Assessor Resource

HLTDT511C
Join alloy structures

Assessment tool

Version 1.0
Issue Date: March 2024


This unit applies to work in dental technology

This unit of competency describes the skills and knowledge required to join dental alloys using thermal processes

All procedures are carried out in accordance with occupational health and safety policies and procedures, current infection control guidelines, Australian and New Zealand Standards, state/territory legislative requirements and organisation policy

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)

Prerequisites

Pre-requisite units

This unit must be assessed after successful achievement of pre-requisites:

HLTDT301C Construct models

HLTDT302C Construct custom impression trays

HLTDT303C Construct registration rims

HLTDT304C Articulate models and transfer records

HLTDT507C Construct immediate dentures

HLTDT508C Construct removable acrylic partial dentures

HLTDT509C Cast metal alloy removable partial denture framework

HLTDT510C Construct crown and bridge structures

HLTDT519B Construct simple complete removable acrylic dentures and appliances

HLTIN301C Comply with infection control policies and procedures


Employability Skills

This unit contains Employability Skills




Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

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

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

Evidence of essential knowledge and understanding may be provided by:

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

Questioning

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


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)


Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

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

articulation and occlusion

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

Dental alloys

Dental metallurgy

Finishing methods

Fluxes

Infection control guidelines for the decontamination of completed laboratory work

Occupational health and safety policies and procedures

Orthodontic wires

Soldering and welding techniques including laser welding technology

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

Produce soldered or welded joints that exhibit bio-compatibility and optimum mechanical properties

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 sequenced written instructions and manufacturer specifications for the preparation of materials

Select materials and techniques to join alloy structures

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

Use safe work practices to minimise the risk of transmission of infection including:

consistently following the procedure for washing and drying hands

consistently putting into practice clean techniques

consistently using personal protective equipment

consistently limiting contamination

consistently maintaining clean receiving and work areas

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

occupational health and safety policies and procedures

infection control policies and procedures

material safety data sheets

laboratory policies and procedures

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

Appropriate heating methods may include:

Heating components to a temperature that:

is sufficient to melt and control the flow of solder

is sufficient to form a bond

prevents damage to the metallurgical properties of the dental materials being joined

The application and control of solder may include but is not limited to:

Achieving the thickness and coverage required for optimum durability and maximum strength

Giving an even flow

Evaluation of each finished joinmay include:

Confirming the finished join meets requirements of:

position

strength

integrity

function

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Identify and position component materials accurately to comply with the design and in a manner that enables the optimum join to be made 
Select appropriate solder and flux according to the component materials 
Select appropriate heating methods 
Apply and control solder 
Evaluate each finished join 
Clean, trim, shape and finish components to produce a smooth surface free of sharp edges and irregularities 
Identify and position component materials accurately to comply with the design and in a manner that enables the optimum join to be made 
Select appropriate welding techniques and equipment 
Weld components 
Evaluate each finished weld 
Clean, trim, shape and finish components to produce a smooth surface free of sharp edges and irregularities 

Forms

Assessment Cover Sheet

HLTDT511C - Join alloy structures
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:


Assessment Record Sheet

HLTDT511C - Join alloy structures

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: