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Evidence Guide: HLTDET014 - Repair and modify dentures 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

 

HLTDET014 - Repair and modify dentures 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 case

  1. Apply standard precautions when receiving, handling and working on dentures and appliances
  2. Decontaminate dentures and appliances according to infection control guidelines
  3. Read and correctly interpret work order
  4. Examine fractured components for defects
  5. Realign, position and secure fractured components in their correct relationship
Apply standard precautions when receiving, handling and working on dentures and appliances

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Decontaminate dentures and appliances according to infection control guidelines

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Read and correctly interpret work order

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Examine fractured components for defects

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Realign, position and secure fractured components in their correct relationship

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare model

  1. Construct model according to the work order.
  2. Construct articulation key
Construct model according to the work order.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Construct articulation key

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Repair denture or appliance

  1. Prepare and shape denture surfaces to allow for bonding with the new material
  2. Relocate components
  3. Select and prepare materials and processing equipment
  4. Apply repair materials using the correct technique to the required shape and thickness
  5. Process materials according to manufacturers’ instructions
Prepare and shape denture surfaces to allow for bonding with the new material

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Relocate components

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select and prepare materials and processing equipment

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Apply repair materials using the correct technique to the required shape and thickness

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Process materials according to manufacturers’ instructions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Modify denture or appliance where required

  1. Decontaminate impressions according to infection control guidelines
  2. Pour the model material into the impression in accordance with accepted techniques
  3. Articulate case and transfer records, or construct articulation key as required
  4. Prepare denture or appliance surfaces appropriately for the modification to be made
  5. Reline, re-base or modify the denture in accordance with work order
Decontaminate impressions according to infection control guidelines

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pour the model material into the impression in accordance with accepted techniques

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Articulate case and transfer records, or construct articulation key as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare denture or appliance surfaces appropriately for the modification to be made

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Reline, re-base or modify the denture in accordance with work order

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Trim, shape and finish denture or appliance

  1. Trim denture or appliance to relevant anatomical outline or required extension of the base
  2. Examine the tissue fitting surface and remove any processing anomalies and sharp surfaces
  3. Refine and polish surfaces and produce required contours
  4. Evaluate the finished prosthesis
  5. Decontaminate the appliance according to infection control guidelines
  6. Place the appliance in a sealed container for dispatch
Trim denture or appliance to relevant anatomical outline or required extension of the base

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Examine the tissue fitting surface and remove any processing anomalies and sharp surfaces

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Refine and polish surfaces and produce required contours

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Evaluate the finished prosthesis

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Decontaminate the appliance according to infection control guidelines

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Place the appliance in a sealed container for dispatch

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 case

1.1 Apply standard precautions when receiving, handling and working on dentures and appliances

1.2 Decontaminate dentures and appliances according to infection control guidelines

1.3 Read and correctly interpret work order

1.4 Examine fractured components for defects

1.5 Realign, position and secure fractured components in their correct relationship

2. Prepare model

2.1 Construct model according to the work order.

2.2 Construct articulation key

3. Repair denture or appliance

3.1 Prepare and shape denture surfaces to allow for bonding with the new material

3.2 Relocate components

3.3 Select and prepare materials and processing equipment

3.4 Apply repair materials using the correct technique to the required shape and thickness

3.5 Process materials according to manufacturers’ instructions

4. Modify denture or appliance where required

4.1 Decontaminate impressions according to infection control guidelines

4.2 Pour the model material into the impression in accordance with accepted techniques

4.3 Articulate case and transfer records, or construct articulation key as required

4.4 Prepare denture or appliance surfaces appropriately for the modification to be made

4.5 Reline, re-base or modify the denture in accordance with work order

5. Trim, shape and finish denture or appliance

5.1 Trim denture or appliance to relevant anatomical outline or required extension of the base

5.2 Examine the tissue fitting surface and remove any processing anomalies and sharp surfaces

5.3 Refine and polish surfaces and produce required contours

5.4 Evaluate the finished prosthesis

5.5 Decontaminate the appliance according to infection control guidelines

5.6 Place the appliance in a sealed container for dispatch

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 case

1.1 Apply standard precautions when receiving, handling and working on dentures and appliances

1.2 Decontaminate dentures and appliances according to infection control guidelines

1.3 Read and correctly interpret work order

1.4 Examine fractured components for defects

1.5 Realign, position and secure fractured components in their correct relationship

2. Prepare model

2.1 Construct model according to the work order.

2.2 Construct articulation key

3. Repair denture or appliance

3.1 Prepare and shape denture surfaces to allow for bonding with the new material

3.2 Relocate components

3.3 Select and prepare materials and processing equipment

3.4 Apply repair materials using the correct technique to the required shape and thickness

3.5 Process materials according to manufacturers’ instructions

4. Modify denture or appliance where required

4.1 Decontaminate impressions according to infection control guidelines

4.2 Pour the model material into the impression in accordance with accepted techniques

4.3 Articulate case and transfer records, or construct articulation key as required

4.4 Prepare denture or appliance surfaces appropriately for the modification to be made

4.5 Reline, re-base or modify the denture in accordance with work order

5. Trim, shape and finish denture or appliance

5.1 Trim denture or appliance to relevant anatomical outline or required extension of the base

5.2 Examine the tissue fitting surface and remove any processing anomalies and sharp surfaces

5.3 Refine and polish surfaces and produce required contours

5.4 Evaluate the finished prosthesis

5.5 Decontaminate the appliance according to infection control guidelines

5.6 Place the appliance in a sealed container for dispatch

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 1 work order and manufacturers’ instructions for repair and modification of removable prostheses, and used standard precautions and safe work practices for constructing repairs and modification for a maxillary or mandibular denture with a combination of the following:

- replace, add or modify new or existing artificial teeth

- replace, add or modifying new or existing metallic components

- modify the denture base

• critically evaluated the 1 repaired or modified denture produced to meet technical laboratory and patient requirements, including confirming that the repaired or modified denture:

- is compliant with the work order

- is free from defects

- is functionally effective in line with the design

- is suitable for insertion in the mouth.

The candidate must 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:

- 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

• constructional faults that cause fractures of denture base including:

- absence of balanced occlusion

- inadequate polymerisation times and temperatures

- incorrect dough consistency when packing

- incorrect positioning of maxillary posterior teeth

- insufficient thickness of acrylic resin in the anterior palatal region of the denture

- rapid cooling after processing

• constructional faults that cause broken teeth

• denture base materials

• denture decontamination procedures when modifying acrylic

• methods for modifying, repairing and maintaining removable prostheses.