Unit of competency Outline
Date retreived
22/07/2026 2:56 PM AWST
22/07/2026 2:56 PM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Construct thermoformed bases and appliances
Construct thermoformed bases and appliances
Unit of competency
National Code
HLTDT315D
HLTDT315D
State Code
WD125
WD125
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
27/07/2012
Field of Education
060705 - Dental Technology
Original Release Date
27/07/2012
Nominal Hours
20
Description
DescriptorThis unit of competency describes the skills and knowledge required to construct thermoformed bases and appliances such as mouthguards, bleaching trays and orthodontic retainersAll procedures are carried out in accordance with work health and safety (WHS) policies and procedures, current infection control guidelines, Australian and New Zealand Standards, State/Territory legislative requirements and organisation policy
Notes
Elements and Performance Criteria
1. Prepare model
- 1.1 Interpret prescription
- 1.2 Mark outline and scribe finishing lines where applicable
- 1.3 Apply block-out material as required
2. Thermo-form appliance or base from blank
- 2.1 Select thermo-forming material in accordance with the prescription and appliance to be constructed
- 2.2 Select thermo-forming equipment according to material
- 2.3 Apply heat to material to ensure that blank has been uniformly softened
- 2.4 Adapt softened material to cast ensuring adaptation is uniform with constant thickness as specified by manufacturer
- 2.5 Allow material to cool
- 2.6 Verify adaptation
3. Trim, shape and finish appliances or bases
- 3.1 Remove thermo-formed blank
- 3.2 Trim to outline and fit to model
- 3.3 Refine outline
- 3.4 Smooth and finish appliance or base
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.
Thermo-formed appliances may include:
Mouthguards
Bleach trays
Occlusal splints
Baseplates
Temporary crown stents
Retaining devices
Custom impression trays
Orthodontic retainers
Implant surgical guides
Thermo-forming equipment may include:
Vacuum
Pressure
The Range Statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance.
Thermo-formed appliances may include:
Mouthguards
Bleach trays
Occlusal splints
Baseplates
Temporary crown stents
Retaining devices
Custom impression trays
Orthodontic retainers
Implant surgical guides
Thermo-forming equipment may include:
Vacuum
Pressure
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
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
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
Replaces
| State Code | National Code | Title | Type |
|---|---|---|---|
| D8184 | HLTDT315C | Construct thermoformed bases and appliances | Unit of competency |
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| AWA27 | HLTDET005 | Construct thermoformed bases and appliances | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| J067 | HLT32712 | Certificate III in Dental Laboratory Assisting | Qualification |
| J102 | HLT50512 | Diploma of Dental Technology | Qualification |