Course Title: Construct custom impression trays
Part B: Course Detail
Teaching Period: Term1 2016
Course Code: DENT5782C
Course Title: Construct custom impression trays
School: 155T Vocational Health and Sciences
Campus: City Campus
Program: C5312 - Diploma of Dental Technology
Course Contact: Mark Doherty
Course Contact Phone: +61 3 93411407
Course Contact Email: firstname.lastname@example.org
Name and Contact Details of All Other Relevant Staff
Matthew Clayton - 93411417 - email@example.com
Nominal Hours: 15
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
HLTIN301C Comply with infection control policies and procedures
HLTWHS200A Participate in WHS processes
This unit of competency describes the skills and knowledge you require to construct special trays to accurately record oral tissues. Custom or special trays as they are often referred to in the Dental industry, are constructed on a primary model to provide a custom fit for a patient, they are then used by a clinician to record a more accurate impression of a patients oral tissue.
All procedures are carried out in accordance with occupational health and safety policies and procedures, current infection control guidelines, Australian and New Zealand Standards, State/Territory legislative requirements and organisation policy.
National Codes, Titles, Elements and Performance Criteria
National Element Code & Title:
HLTDT302D Construct custom impression trays
1. Prepare model
1.1 Read and interpret the prescription
1.2 Block out undesirable undercuts
1.3 Design the custom tray for the client's dentition and the intended impression material and technique
1.4 Apply spacer material as required
2. Select and prepare materials
2.1 Select custom tray materials in accordance with the prescription
2.2 Prepare equipment for processing
2.3 Provide appropriate mixing vessels and templates if required
3. Construct custom impression tray
3.1 Apply appropriate separating medium in accordance with manufacturer's instructions
3.2 Mix or manipulate materials in accordance with the manufacturer's instructions
3.3 Adapt tray material to the model to the pre-determined peripheral outline
3.4 Construct handle and finger rests 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 cast in a manner that prevents damage and remove spacer material
3.7 Trim the outline of the tray to shape
4. Finish custom impression tray
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
On completion of this course you will have the ability consistently construct a range of special trays out of two different types of material that would be used in the industry for patients who are edentulous (without teeth) partially dentate (some teeth missing) or for a patient requiring treatment with implants.
Details of Learning Activities
• Facilitator led discussions using Powerpoint presentations
• In class activities
• Simulated laboratory activities
• Reading chapters from Anatomy of Orofacial Structures
Tile class is scheduled for delivery to the APPRENTICE group & NON-APPRENTICE
groups in the Lecture theatre of Building 154 RMIT (within the Royal Dental Hospital Melbourne) Notification will be provided via student email if the date or location change.
Following the delivery of the theory class, practical exercises will be undertaken in the laboratory.
Class schedules are detailed in the timetables provided on Blackboard (subject to change at the discretion of RMIT, in this event notification will be provided to your student email:
Practical classes will be delivered in the simulated environment at RMIT where the Teacher will provide demonstration and assistance as you construct the following appliances.
• Edentulous Light-Cure Special Trays
• Edentulous Self-Cure Special Trays
• Dentate Self-Cure Special Tray
The TIER 2 exercises are made available if you complete all of the previous exercises and are seeking further practice prior to the assessments. The time guides for the TIER 2 exercises are reduced and require a ’self-managed approach’ to complete the exercise.
• TIER 2 - Dentate Light-Cure Special Trays
• TIER 2 - Dentate Self-Cure Special Trays
• Powepoint available on MYRMIT Blackboard under the program code C5312 and the Unit of Competence HLTDT302D/DENT5782C Construct custom impression trays RMIT online learning Hub www.rmit.edu.au/online
• Library www.rmit.edu.au/library
• Internet links
• Primal Pictures
• Journals, Brochures, Pamphlets, Newspapers, Magazines
Overview of Assessment
You will be assessed in simulated workplace and under the normal range of work conditions.
You will be assessed on both the essential knowledge and the demonstration of skills through;
- Completion of practical exercises - including detailed self reflection of each exercise
- Practical exam
- Theory exam
You will attempt the following practical exercise under supervision of the teacher and you will be graded with either a Px (Satisfactory) or NYC (Not Satisfactory) according to the assessment guidelines outlined in the practical exercise book; in accordance with the training package elements & essential skills.
1. Edentulous Light-Cure Special Trays
2. Edentulous Self-Cure Special Trays
3. Dentate Self-Cure Special Tray
The TIER 2 exercises are made available if you complete all of the previous exercises and are seeking further practice prior to the assessments. The time guides for the TIER 2 exercises are reduced and require a ’self-managed approach’ to complete the exercise. If you attempt the following practical exercises you will be graded with either a Px (Satisfactory) or NYC (Not Satisfactory) according to the assessment guidelines outlined in the practical exercise book; in accordance with the training package elements & essential skills.
1. TIER 2 - Dentate Light-Cure Special Trays
2. TIER 2 - Dentate Self-Cure Special Trays
Upon completion of an exercise and prior to submission for assessment, all exercises undertaken in the practical classes will require you to provide a detailed reflection of your own work focussing on areas of the appliance that were successful as well as areas that could be improved upon next time.
The practical exam will take place under supervision in the simulated working environment at RMIT. The exam will take place under exam conditions and you will be given details of the requirements and assessment guidelines in the practical book available in class and on BlackBoard.
PRAC EXAM - Mx and Md Edentulous Special Trays (One in self-cure acrylic and the other constructed in light-cure acrylic)
The theory exam will be conducted under supervisio’n at RMIT under exam conditions.
Construct custom trays and composite resins - Theoretical examination - pass mark 60%
To achieve a grade of CA (Competency Achieved) for the unit HLTDT302D/DENT5782C Construct custom impression trays, you are required to obtain a pass result (PX or CA) for the following theoretical and practical assessments that are used to measure; elements, performance criteria, essential knowledge and essential skills as outlined in the health training package.
1. Construct custom impression trays theoretical exam
2. PRAC EXAM - Mx and Md Edentulous Special Trays (One in self-cure acrylic and the other constructed in light-cure acrylic)
Failure to complete any of the above listed tasks/assessments will result in an NYC not yet competent result for unit HLTDT302D/DENT5782C Construct custom impression trays. An NYC (not yet competent) result will be entered in the student record. This will result in non-completion of this unit of competence requiring re-enrolment incurring fees and a return to class work and completion of any relevant assessments at the time of the re-enrolment.
The scheduled dates for the assessments are as follows;
1. Non-Apprentice (The assessment process must be finalised and a result entered by July 1st 2015)
2. Apprentice (The assessment process must be finalised and
a result entered by July 1st 2015)
RMIT University requires that you present YOUR work for assessment. Plagiarism is a form of cheating. It is the presentation of the work or idea of another person. Plagiarism is NOT acceptable. Penalities can include charges of acedemic misconduct, cancellation of results and exclusion from your course.
Please note: It is also a disciplinary offence to allow your work to be plagiarised by another student. When signing the coversheet to submit your learning guides and assessments.
Please note: Students may apply for Special Consideration as per the information via the RMIT website http://www.rmit.edu.au/browse:ID=g43abm17hc9w if they believe complete assessment for this unit by the submission date has been affected by factors beyond their control. Special consideration must be lodged prior to or within 48 hours of the scheduled assessment time or
assessment submission date. The application for Special Consideration is NOT granted automatically on application.
RMIT assessment policies - RMIT University: http://www1.rmit.edu.au/browse;ID=z7247x jmh46z
Special consideration online application - RMIT University:
Non completion or non-submission of compulsory tasks:
Failure to complete any or all of the compulsory tasks listed above will prevent the student from achieving a CA (competency achieved) result for unit HLTDT302D/DENT5782C Construct custom impression trays. This will result in the student not completing the unit successfully. NYC (not yet competent) will be recorded and re enrolment will be required to continue the
unit/program. Fees will be incurred. Please note: A second opportunity for assessment will not be
granted unless the student has applied for and been granted special consideration as per RMIT assessment policy.
Assessment Appeal Process:
The Appeals Against Assessment policy and procedure applies to all coursework programs in all careers. The appeal process is staged and students are required to follow each stage in order to ensure their full entitlement to appeal is available http://www1.rmit.edu.au/students/appeals
Students are required to support the learning outcomes this Unit with work based experience and/ or further self managed research to support positive outcomes in this Unit.
To undertake practical exercises and /or assessment students MUST present for the assessment process as follows:
Please note these are also WH&S requirements for clinical safety.
In appropriate practical class attire (Protective clothing for legs - if shorts, must cover knees, lab coat, safety glasses)
Fully covered in leather(not suede) footwear
Hair to be contained by tying back or in appropriate hair cover. No artificial fingernails to be worn
The wearing of henna is acceptable. Short, clean fingernails
No jewellery to be worn on the hands or wrists. Wedding rings or jewellery that cannot be removed for cultural reasons must be taped with an appropriate waterproof tape
All cuts/ skin abrasions on the hands or wrists must be covered with a waterproof dressing
A student that is non-compliant with any of the above requirements will not be permitted to undertake practical exercises or assessment at the scheduled time. The student will be rescheduled to undertake assessment at a later date.
Course Overview: Access Course Overview