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Evidence Guide: HLTDEN012 - Take an impression for study models

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

 

HLTDEN012 - Take an impression for study models

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

Elements define the essential outcomes

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assess the patient

  1. Confirm patient’s medical history
  2. Provide full details of the procedure to the patient or carer
  3. Obtain and document consent following ethical and legal requirements
  4. Select the equipment and instruments for the impression
  5. Prepare personal protective equipment for the patient and members of the dental team
Confirm patient’s medical history

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Provide full details of the procedure to the patient or carer

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Obtain and document consent following ethical and legal requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select the equipment and instruments for the impression

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare personal protective equipment for the patient and members of the dental team

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select appropriate impression tray

  1. Check the position of the dental chair and patient for the procedure
  2. Check the tray for size and modify the impression tray to ensure accuracy and comfort
  3. Instruct patient on participation during the procedure
Check the position of the dental chair and patient for the procedure

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Check the tray for size and modify the impression tray to ensure accuracy and comfort

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Instruct patient on participation during the procedure

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare impression material

  1. Select impression material in accordance with desired outcome
  2. Mix the impression material to the correct consistency and quantity required according to manufacturers’ instructions
Select impression material in accordance with desired outcome

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Mix the impression material to the correct consistency and quantity required according to manufacturers’ instructions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Perform impression-taking procedure

  1. Implement standard precautions during impression-taking
  2. Use syringe to remove saliva from the occlusal surfaces
  3. Load tray with an appropriate amount of impression material and seat the tray from the back using gentle pressure
  4. Ensure the impression extends to and surrounds dental hard tissue structures
  5. Ensure the impression has adequate extension into the buccal sulcus and vestibule
  6. Carry out muscle trimming after seating the impression
  7. Monitor and reassure the patient throughout the procedure
  8. Remove the impression when set
  9. Examine the patient’s mouth for injury and impression material debris following removal of the impression
  10. Restore the patient’s comfort and appearance
Implement standard precautions during impression-taking

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Use syringe to remove saliva from the occlusal surfaces

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Load tray with an appropriate amount of impression material and seat the tray from the back using gentle pressure

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Ensure the impression extends to and surrounds dental hard tissue structures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Ensure the impression has adequate extension into the buccal sulcus and vestibule

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out muscle trimming after seating the impression

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Monitor and reassure the patient throughout the procedure

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Remove the impression when set

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Examine the patient’s mouth for injury and impression material debris following removal of the impression

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Restore the patient’s comfort and appearance

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assess the impression

  1. Assess the quality of the impression for the required study model
  2. Identify common impression-taking problems
  3. Document details of the procedure in accordance with standard procedures and relevant guidelines
Assess the quality of the impression for the required study model

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify common impression-taking problems

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Document details of the procedure in accordance with standard procedures and relevant guidelines

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Decontaminate the impression

  1. Implement standard precautions during impression-taking
  2. Rinsethe impression or denture in cold running tap water to remove all traces of saliva and blood
  3. Clean the impression in an appropriate solution
  4. Rinse the impression until all visible contamination is removed
  5. Identify and correctly label impression and record procedure
Implement standard precautions during impression-taking

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Rinsethe impression or denture in cold running tap water to remove all traces of saliva and blood

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Clean the impression in an appropriate solution

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Rinse the impression until all visible contamination is removed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify and correctly label impression and record procedure

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. Assess the patient

1.1 Confirm patient’s medical history

1.2 Provide full details of the procedure to the patient or carer

1.3 Obtain and document consent following ethical and legal requirements

1.4 Select the equipment and instruments for the impression

1.5 Prepare personal protective equipment for the patient and members of the dental team

2. Select appropriate impression tray

2.1 Check the position of the dental chair and patient for the procedure

2.2 Check the tray for size and modify the impression tray to ensure accuracy and comfort

2.3 Instruct patient on participation during the procedure

3. Prepare impression material

3.1 Select impression material in accordance with desired outcome

3.2 Mix the impression material to the correct consistency and quantity required according to manufacturers’ instructions

4. Perform impression-taking procedure

4.1 Implement standard precautions during impression-taking

4.2 Use syringe to remove saliva from the occlusal surfaces

4.3 Load tray with an appropriate amount of impression material and seat the tray from the back using gentle pressure

4.4 Ensure the impression extends to and surrounds dental hard tissue structures

4.5 Ensure the impression has adequate extension into the buccal sulcus and vestibule

4.6 Carry out muscle trimming after seating the impression

4.7 Monitor and reassure the patient throughout the procedure

4.8 Remove the impression when set

4.9 Examine the patient’s mouth for injury and impression material debris following removal of the impression

4.10 Restore the patient’s comfort and appearance

5. Assess the impression

5.1 Assess the quality of the impression for the required study model

5.2 Identify common impression-taking problems

5.3 Document details of the procedure in accordance with standard procedures and relevant guidelines

6. Decontaminate the impression

6.1 Implement standard precautions during impression-taking

6.2 Rinsethe impression or denture in cold running tap water to remove all traces of saliva and blood

6.3 Clean the impression in an appropriate solution

6.4 Rinse the impression until all visible contamination is removed

6.5 Identify and correctly label impression and record procedure

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. Assess the patient

1.1 Confirm patient’s medical history

1.2 Provide full details of the procedure to the patient or carer

1.3 Obtain and document consent following ethical and legal requirements

1.4 Select the equipment and instruments for the impression

1.5 Prepare personal protective equipment for the patient and members of the dental team

2. Select appropriate impression tray

2.1 Check the position of the dental chair and patient for the procedure

2.2 Check the tray for size and modify the impression tray to ensure accuracy and comfort

2.3 Instruct patient on participation during the procedure

3. Prepare impression material

3.1 Select impression material in accordance with desired outcome

3.2 Mix the impression material to the correct consistency and quantity required according to manufacturers’ instructions

4. Perform impression-taking procedure

4.1 Implement standard precautions during impression-taking

4.2 Use syringe to remove saliva from the occlusal surfaces

4.3 Load tray with an appropriate amount of impression material and seat the tray from the back using gentle pressure

4.4 Ensure the impression extends to and surrounds dental hard tissue structures

4.5 Ensure the impression has adequate extension into the buccal sulcus and vestibule

4.6 Carry out muscle trimming after seating the impression

4.7 Monitor and reassure the patient throughout the procedure

4.8 Remove the impression when set

4.9 Examine the patient’s mouth for injury and impression material debris following removal of the impression

4.10 Restore the patient’s comfort and appearance

5. Assess the impression

5.1 Assess the quality of the impression for the required study model

5.2 Identify common impression-taking problems

5.3 Document details of the procedure in accordance with standard procedures and relevant guidelines

6. Decontaminate the impression

6.1 Implement standard precautions during impression-taking

6.2 Rinsethe impression or denture in cold running tap water to remove all traces of saliva and blood

6.3 Clean the impression in an appropriate solution

6.4 Rinse the impression until all visible contamination is removed

6.5 Identify and correctly label impression and record procedure

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 undertaken 10 impression procedures for study models ensuring patient safety.

The candidate must be able to demonstrate essential knowledge required to effectively complete the tasks outlined in elements and performance criteria of this unit, manage the task and manage contingencies in the context of the work role. This includes knowledge of:

• national and State/Territory legal and ethical requirements and considerations for dental assisting work including:

­ codes of practice

­ discrimination

­ duty of care

- informed consent and statutory requirements of consent

- practice standards – dental guidelines on infection control

­ privacy, confidentiality and disclosure

­ records management

­ work role boundaries – responsibilities and limitations

­ work health and safety

• fundamental 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

• principles and practices which underpin interpersonal communication

• principles of quality assurance and work effectiveness

• rationale and objectives for the taking of impressions for study models

• impression materials suitable for creating impressions for study models

• appropriate responses to patient’s reactions during impression taking procedure.