Course Title: Construct custom impression trays

Part B: Course Detail

Teaching Period: Term2 2025

Course Code: DENT5862C

Course Title: Construct custom impression trays

School: 535T Social Care and Health

Campus: City Campus

Program: C5387 - Diploma of Dental Technology

Course Contact: Luke Scarica

Course Contact Phone: 03 9925 0312

Course Contact Email: luke.scarica@rmit.edu.au


Name and Contact Details of All Other Relevant Staff

Nominal Hours: 30

Regardless of the mode of delivery, represent a guide to the relative teaching time and student effort required to successfully achieve a particular competency/module. This may include not only scheduled classes or workplace visits but also the amount of effort required to undertake, evaluate and complete all assessment requirements, including any non-classroom activities.

Pre-requisites and Co-requisites

None

Course Description

This unit of competency describes the skills and knowledge required to construct special trays to accurately record oral tissues.

This unit applies to work in dental technology.


National Codes, Titles, Elements and Performance Criteria

National Element Code & Title:

HLTDET002 Construct custom impression trays

Element:

1. Prepare model

Performance Criteria:


1.1 Read and interpret the work order

1.2 Block out undesirable undercuts

1.3 Design the custom tray for the patient’s dentition and the intended impression material and technique

1.4 Apply spacer material when required

Element:

2. Select and prepare materials

Performance Criteria:


2.1 Select custom tray materials in accordance with the work order

2.2 Prepare equipment for processing

2.3 Provide appropriate mixing vessels and templates when required

Element:

3. Construct custom impression trays

Performance Criteria:


3.1 Apply appropriate separating medium in accordance with manufacturer’s instructions

3.2 Mix or manipulate materials in accordance with the manufacturers’ instructions

3.3 Adapt tray material to the model to the pre-determined peripheral outline

3.4 Construct handle and attach according to operator requirements

3.5 Process custom tray using the correct method for the correct material

3.6 Separate the tray from the model in a manner that prevents damage and remove spacer material

3.7 Trim the outline of the tray to shape

Element:

4. Finish custom impression trays

Performance Criteria:


4.1 Smooth and refine the peripheries, handle and other surfaces of the tray

4.2 Decontaminate the custom impression tray according to infection control guidelines

4.3 Dry the custom tray and place in a sealed container for dispatch

Learning Outcomes


On completion of this course, you will be able to:

  1. Prepare model
  1. Select and prepare materials
  1. Construct custom impression tray
  1. Finish custom impression tray


Details of Learning Activities

Face-to-Face


Teaching Schedule

Session 1
AM 9:30am – 12:30pm
PM 1:30pm – 4:30pm

Theory

Tray Construction
  • Quiz 1
  • Quiz 2
  • Quiz 3
  • Learning Activity 1+2
Session 2
AM 9:30am – 12:30pm
PM 1:30pm – 4:30pm

Tray Construction
  • Learning Activity 3+4
Session 3 AM 9:30am – 12:30pm
PM 1:30pm – 4:30pm

Tray Construction
  • Learning Activity 5+6
Session 4 AM 9:30am – 12:30pm
PM 1:30pm – 4:30pm

Knowledge Assessment

CAD Assessment (Design)
  • Knowledge Assessment
  • CAD Assessment (Design)
Session 5 AM 9:30am – 12:30pm
PM 1:30pm – 4:30pm

Practical Assessment

CAM Assessment (Post-Manufacture)
  • Practical Assessment
  • CAM Assessment (Post-Manufacture)


Learning Resources

Prescribed Texts


References


Other Resources

To assist you with your learning, RMIT University will provide access to free Campus Wi Fi and internet, access to Canvas LMS. RMIT also has available free access to computers and study spaces: https://www.rmit.edu.au/library/about-and-contacts/computers-and-study-spaces

The University Library has extensive resources and provides subject specialist expertise, research advice, help with referencing and support through:


Overview of Assessment

You 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 you have:

• read and correctly interpreted 4 work orders

• used standard precautions and safe work practices to fabricate custom trays, using a range of materials, for 4 different dentitions with desirable properties and design features including one each of the following (must be a combination of maxillary and mandibular arches):

- full dentition

- edentulous

- partial dentition including

bounded saddle

free end saddle

• critically evaluated the 4 custom impression trays produced to meet technical laboratory and clinician requirements.

To be deemed competent you must demonstrate an understanding of all aspects required of the competency.

Regular attendance is necessary.

Assessment methods have been designed to measure your achievement of each competency in a flexible manner over multiple tasks and consist of theory and practical based tasks.


Assessment Tasks

Students enrolled in Vocational Education and Training qualifications are assessed for Competency. To be assessed as Competent means you have consistently demonstrated the required knowledge and skills at a standard expected in the workplace. To be assessed as Competent in this course, you will need to complete each assessment task to a satisfactory standard. You will receive feedback from the teacher at the conclusion of each assessment task. You should refer to the assessment brief which is available through Canvas for full assessment criteria.

Assessment Task 1: Knowledge Canvas Quiz

Assessment Task 2: Practical Assessment

Results that apply to courses that are delivered and assessed in accordance with competency-based assessment are:
CA: Competency Achieved
NYC: Not Yet Competent
DNS: Did not Submit for Assessment

Resubmissions:
Students are allowed two (2) attempts for each assessment to demonstrate competency for the required skills. If an assessment is not submitted by the due date, or you do not attend a practical assessment, regardless of whether it is a first or second attempt, you must apply for special consideration within five (5) working days. If your application is approved, you will be permitted to complete the assessment task at a later date. Without approval for special consideration, you will receive a "Not Yet Competent" (NYC) grade for that assessment.

A Supplementary Assessment may be granted at the discretion of the Program Coordinator or Program Manager, following discussions with the teacher and/or Course Advisory Committee. Factors such as class attendance (80-100% requirement), class participation and communication with the teacher will be considered.


Assessment Matrix

The assessment tasks listed in this course guide address all the elements and criteria of the requirements of this course

Other Information

Attendance: Your learning experience will involve class-based teaching, discussions, demonstrations and practical exercises. It is strongly advised that you attend all
timetabled sessions. This will allow you to engage in the required learning activities, ensuring you the maximum opportunity to complete this course successfully.
Information about your studies: You can access My Studies through the RMIT website for information about timetables, important dates, assessment dates, results and
progress, Canvas etc.
https://www.rmit.edu.au/students

Attendance:

Your learning experience will involve class-based teaching, discussion, demonstration and practical exercises.

It is strongly advised and expected that you attend all timetabled sessions. This will allow you to engage in the required learning activities, ensuring you the maximum opportunity to complete this course successfully.

Class attendance of less than 80% of the class exercise sessions may negatively impact any possibility of additional submissions (see also above in “Assessment Tasks: Re-submissions”).

If you attend late to a lab/clinic/practical teaching session you must wait to be allowed entrance to the lab/clinic as this can pose a WHS issue, especially if specialised equipment is being used and demonstrated. Teachers are permitted to not allow you to use equipment if formal training has been missed, if this happens you must request a meeting with the teacher and program coordinator to discuss moving forward.

If you miss an assessment or assessable practical class you need to apply for special consideration. The special consideration department will ask you to provide a medical certificate or give other evidence to support your request. Once Special consideration has been applied for the students will wait for the result and then contact their teacher on the outcome.

Information about your studies:

You can access My Studies through the RMIT website for information about timetables, important dates, assessment dates, results and progress, Canvas etc.

https://www.rmit.edu.au/students

Extensions of time for submission of assessable work:

If you are prevented from submitting an assessment on time by circumstances outside your control you may apply for an extension of up to seven (7) calendar days to your Program Coordinator through your Canvas Course Shell one working day BEFORE the due date. Please provide evidence and /or valid reasonings why you were unable to complete the submission on time within this email. Extensions cannot be guaranteed if evidence or valid reasons are not given. Eligibility criteria for application and the form is available from the link: https://www.rmit.edu.au/students/student-essentials/assessment-and-exams/assessment/extensions-of-time-for-submission-of-assessable-work

Where an extension of greater than seven days is needed, you must apply for special consideration.

Special consideration:

If due to illness or other unforeseen circumstance, you are unable to attend on the due date of an assessment (e.g. test, examination, oral, etc.), you may submit an application for special consideration within 5 working days of the due date. If special consideration is granted, you will be given the opportunity to complete/repeat the assessment task at a later date. For advice on this application please visit www.rmit.edu.au/students/specialconsideration or speak to your Program Coordinator.

Academic Integrity and Plagiarism:

RMIT University has a strict policy on plagiarism and academic integrity. Please refer to the website for more information on this policy.

https://www.rmit.edu.au/students/student-essentials/assessment-and-exams/academic-integrity

Credit Transfer and Recognition of Prior Learning:

Credit transfer is the recognition of previously completed formal learning (an officially accredited qualification).

Recognition of Prior Learning (RPL) is an assessment process that allows you to demonstrate competence using the skills you have gained through experience in the workplace, voluntary work, informal or formal training or other life experiences.

Please speak to your teacher if you wish to discuss applying for Credit Transfer or RPL for the unit(s) of competency addressed in this course.

https://www.rmit.edu.au/students/student-essentials/enrolment/apply-for-credit

Course Overview: Access Course Overview