Elements and Performance Criteria

Components may include:
Screws
Piston-screws
Springs and sheaths made in a variety of metals and polymers

Materials may include:
Polymers or metals and metal joining techniques

Appliances may include functional appliances and retainers of varying types, which may include:
Bite opening
Retraction
Expansion
Retaining
Incline plane
Oral screen

Critical aspects of assessment:
This unit must be assessed over the full range of the processes on a number of occasions
All work complies with relevant legislative requirements

Underpinning knowledge:
Dental metallurgy
Relevant material science for carrying out procedures
Relevant oral anatomy
Knowledge of the principles of orthodontic procedures
Occlusion
Wrought wire fabrication techniques

Underpinning skills:
Manual dexterity
Accuracy in wire bending
Planning of work

Interdependent assessment of units:
This unit may be assessed with other units making up a job role. The following units are pre-requisites for this unit:
HLTIN1A Comply with infection control policy and procedures
HLTDT1A Construct models
HLTDT4A Articulate models and transfer records
HLTDT6A Wax, process and finish acrylic dentures and appliances
HLTDT7A Construct immediate dentures
HLTDT8A Set up and wax removable partial dentures
HLTDT9A Cast metal alloy removable partial denture framework
HLTDT10A Construct metal, crown and bridge structures
HLTDT11A Join alloy structures

Resource implications:
This unit should be assessed by direct observation at work or through simulation. A simulated environment must contain all necessary equipment.