Course Title: Repair and modify dentures and appliances

Part B: Course Detail

Teaching Period: Term2 2013

Course Code: DENT5790C

Course Title: Repair and modify dentures and appliances

School: 155T Vocational Health and Sciences

Campus: City Campus

Program: C5312 - Diploma of Dental Technology

Course Contact: Mark Doherty

Course Contact Phone: 03 9341 1407

Course Contact Email:

Name and Contact Details of All Other Relevant Staff

Nicholas Greer

P: 9341 1420



Zanne Frazer

P: 9341 1402



James Moser

P:9341 1417



Narelle Tobin

P: 9341 1403


Nominal Hours: 40

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

HLTDT301D Construct models
HLTDT304D Articulate models and transfer records
HLTDT519C Construct simple complete removable acrylic dentures and appliances
HLTIN301C Comply with infection control policies and procedures
HLTWHS300A Contribute to WHS processes

Course Description

This unit of competency describes the skills and knowledge required for you to reline (adding a new fitting surface to a denture), rebase (extensive changes to the base of denture), repair and modify removable prostheses (re-fitting broken parts of a denture to return it to function). The different facets of this unit of competence are very common techniques that you will use whilst working in the Dental Industry.  
The 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:

HLTDT518D Repair and modify dentures and appliances


1. Prepare case

Performance Criteria:

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 interpret prescription
1.4 Examine fractured components for defects
1.5 Realign, position and secure fractured components in their correct relationship


2. Prepare model

Performance Criteria:

2. Prepare model
2.1 Construct model
2.2 Construct articulation key if required


3. Repair denture or appliance

Performance Criteria:

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 material using the correct technique to the required shape and thickness
3.5 Process material to manufacturer's instructions


4. Modify denture or appliance, where required

Performance Criteria:

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 prescription


5. Trim, shape and finish denture or appliance

Performance Criteria:

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

Learning Outcomes

On completion of this course you will be able to demonstrate, on a consistent basis, the process involved in the repair of a range of different dentures including full and partial dentures. The modifications you will make include a denture reline; creating a new fitting surface for the denture that provides a better for the patient as well as replacing an existing tooth on a denture - due to fracture.

Details of Learning Activities

Participation in group activities based on a simulated workplace exercises.
Practical exercises
Individual exercises carrying out requirements of competency.
Student experiences in workplace “on job training”

Teaching Schedule


  • HLTDT518D Acrylic resins/ Soft liners/ Tissue conditioners 08/07/2013 (0830 -1230 - 4 hours)
  • HLTDT518D Repair and Modify Dentures and Appliances/ Waxes, Abrasives and Polishing agents15/07/2013 (0830 -1230 - 4 hours)

Practical: Various sessions delivered dependent on the group.

Learning Resources

Prescribed Texts

Anatomy of Orofacial Structures


Mosby's Dental Dictionary



Other Resources

  • RMIT online learning Hub
  • Library
  • Internet links
  • Primal Pictures
  • Journals, Brochures, Pamphlets, Newspapers, Magazines

Overview of Assessment

You will be assessed in a simulated workplace and under the normal range of work conditions.

You will be assessed on both the essential knowledge and the demonstration of essential skills through;

Completion of practical exercises - including detailed self-reflection or each exercise
Practical exam
Theory exam

Assessment Tasks

Practical exercises:

  1. Full Upper Denture Repair
  2. Full Lower Denture Repair
  3. Partial Denture Repair
  4. Denture Tooth Repair
  5. Full Lower Denture Reline

Assessment guidelines for the practical exercises, as outlined in the practical exercise book.

Practical competency examination

  1. Full Denture Repair incorporating appropriate tooth repair

Theoretical examination

Construct thermoformed baseplates and appliances

One element of the 3 hour exam (divided into competencies) PASS MARK 60%, If ’NYC’ (Not Yet Competent) result is achieved the student will be provided with detailed feedback of the shortcomings and given a further opportunity to sit a secondary exam.

If a grade of 40% or less is achieved the student will NOT be granted an opportunity to sit a secondary exam and the student will be required to re-enroll in the unit which will be incurr fees.

Please note: A subsequent NYC result for any of above mentioned assessments may require the student to attend further class work within their enrolment period or may result in the student re-enrolling in the unit which will be incurring fees.

Assessment Matrix

Other Information

Please Note: Students may apply for Special Consideration as (per the information provided in the Student Handbook ) via the RMIT Hub @ http:/ consideration if they believe their ability to 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.

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