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Elements and Performance Criteria

  1. Elements define the essential outcomes
  2. Plan treatment
  3. Take a primary impression
  4. Prepare to take a final impression
  5. Take the final impression
  6. Pour master and/or working models and fabricate occlusal rims
  7. Record jaw relationships and occlusion
  8. Select appropriate artificial teeth
  9. Fit and evaluate try-in prosthesis
  10. Process, evaluate and insert the completed overdenture

Performance Evidence

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:

• performed the activities outlined in the performance criteria of this unit during a period of at least 240 hours of work in a clinical dental workplace environment

• prepared 2 patients for insertion of an implant retained overdenture

• followed procedures to ensure patient safety during try-in and insertion

• constructed 2 functional and aesthetic implant retained overdentures.


Knowledge Evidence

The candidate must be able to demonstrate essential knowledge required to effectively complete 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:

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 prosthetics work

dental practice or organisation policy and procedures, including registration standards and guidelines

advantages of an implant retained overdenture to the patient including:

better aesthetics especially when resorption has decreased the size of the alveolar process in the maxilla

fewer implants, abutments and prosthetic components

less component stress and breakage

lower treatment costs compared to fixed prosthetics

simplified construction technique

the specific skills and techniques that are required when processing implant overdentures for a successful outcome

disadvantages of implant retained overdentures including the wear of attachments with repeated removal and seating of the overdentures

properties of dental materials used for construction

implant attachment options for overdentures

importance for patients to follow pre and post-procedural instructions, including:

removal of the overdenture

use of a standard soft toothbrush to brush abutments

use of dental floss to clean under the bar and around each abutment cylinder

use of an interdental brush to clean the under surface of the denture and the overdenture framework

instructions on the insertion and removal, hygiene and ongoing maintenance of the prosthesis and abutments.