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Evidence Guide: HLTDET005 - Construct thermoformed bases and appliances

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

 

HLTDET005 - Construct thermoformed bases and appliances

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

Elements define the essential outcomes

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare model

  1. Interpret work order
  2. Mark outline and scribe finishing lines where applicable
  3. Apply block-out material as required
Interpret work order

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Mark outline and scribe finishing lines where applicable

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Apply block-out material as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Thermo-form appliance or base from blank

  1. Select thermo-forming material in accordance with the work order and appliance to be constructed
  2. Select thermo-forming equipment according to material
  3. Apply heat to material to ensure that blank has been uniformly softened
  4. Adapt softened material to model ensuring adaptation is uniform with constant thickness as specified by manufacturer’s instructions
  5. Allow material to cool
  6. Verify adaptation
Select thermo-forming material in accordance with the work order and appliance to be constructed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select thermo-forming equipment according to material

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Apply heat to material to ensure that blank has been uniformly softened

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Adapt softened material to model ensuring adaptation is uniform with constant thickness as specified by manufacturer’s instructions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Allow material to cool

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Verify adaptation

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Trim, shape and finish appliances or bases

  1. Remove thermo-formed blank
  2. Trim to outline and fit to model
  3. Refine outline
  4. Smooth and finish appliance or base
Remove thermo-formed blank

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Trim to outline and fit to model

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Refine outline

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Smooth and finish appliance or base

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

ELEMENT

PERFORMANCE CRITERIA

Elements define the essential outcomes

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Prepare model

1.1 Interpret work order

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 work order 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 model ensuring adaptation is uniform with constant thickness as specified by manufacturer’s instructions

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

Required Skills and Knowledge

ELEMENT

PERFORMANCE CRITERIA

Elements define the essential outcomes

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Prepare model

1.1 Interpret work order

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 work order 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 model ensuring adaptation is uniform with constant thickness as specified by manufacturer’s instructions

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

The candidate must show evidence of the ability to complete tasks outlined in elements and performance criteria of this unit, manage tasks and manage contingencies in the context of the job role. There must be evidence that the candidate has:

• read and correctly interpreted work orders and constructed the following 3 appliances:

- mouthguard

- bleaching tray

- splint

• used standard precautions and safe work practices to trim, polish and finish 2 thermo-formed appliances suitable for insertion in the mouth

• critically evaluated the 2 different types of thermo-formed appliances produced to meet technical laboratory and clinician requirements.

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 and State/Territory legislation and organisation policies relating to dental laboratory work

• fundamental oral anatomy including:

- 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

• polymer science

• relevant material science for carrying out procedures

• thermoforming technology.