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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Prepare model
   • Interpret prescription
   • Mark outline and scribe finishing lines where applicable
   • Apply block-out material as required
2. Thermo-form appliance or base from blank
   • Select thermo-forming material in accordance with the prescription and appliance to be constructed
   • Select thermo-forming equipment according to material
   • Apply heat to material to ensure that blank has been uniformly softened
   • Adapt softened material to cast ensuring adaptation is uniform with constant thickness as specified by manufacturer
   • Allow material to cool
   • Verify adaptation
3. Trim, shape and finish appliances or bases
   • Remove thermo-formed blank
   • Trim to outline and fit to model
   • Refine outline
   • Smooth and finish appliance or base

Required Skills

This describes the essential skills and knowledge and their level required for this unit

Essential knowledge The candidate must be able to demonstrate essential knowledge required to effectively do the task outlined in elements and performance criteria of this unit manage the task and manage contingencies in the context of the identified work role This includes knowledge of Applied oral anatomy articulation and occlusion dentition arrangement of the teeth naming and coding of teeth structures of the oral cavity hard and soft palate lateral and posterior borders of the oral cavity tongue and floor of the mouth teeth form and function Infection control guidelines for the decontamination of completed laboratory work Occupational health and safety policies and procedures Polymer science Relevant material science for carrying out procedures Thermoforming technology

Essential skills It is critical that the candidate demonstrate the ability to Consistently trim polish finish and evaluate thermoformed appliances for suitability for insertion in the mouth Consistently comply with current infection control guidelines Australian Standards and legislative requirements as they relate to the dental technicians specific job role Consistently comply with occupational health and safety policies and procedures as they relate to the dental technicians specific job role In addition the candidate must be able to effectively do the task outlined in elements and performance criteria of this unit manage the task and manage contingencies in the context of the identified work role This includes the ability to Consistently follow occupational health and safety policies and procedures Consistently follow sequenced written instructions and manufacturer specifications for the preparation of materials Critically evaluate all work produced so as to consistently meet both the technical requirements of the laboratory and client requirements Select appropriate materials and techniques to manufacture thermoformed appliances taking into account efficient use of power and other resources Use safe work practices to minimise the risk of transmission of infection including consistently following the procedure for washing and drying hands consistently putting into practice clean techniques consistently using personal protective equipment consistently limiting contamination consistently maintaining clean receiving and work areas Use literacy skills to read and follow directions policies and procedures including occupational health and safety policies and procedures infection control policies and procedures material safety data sheets laboratory policies and procedures

Evidence Required

The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria Required Skills and Knowledge the Range Statement and the Assessment Guidelines for this Training Package
Critical aspects for assessment and evidence required to demonstrate this competency unit	The individual being assessed must provide evidence of specified essential knowledge as well as skills Consistency of performance should be demonstrated over the required range of workplace situations
Context of and specific resources for assessment	Assessment should replicate workplace conditions as far as possible Where for reasons of safety access to equipment and resources and space assessment takes place away from the workplace simulations should be used to represent workplace conditions as closely as possible
Method of assessment	Evidence of essential knowledge and understanding may be provided by traditional or online computerbased assessment written assignmentsprojects Case study and scenario as a basis for discussion of issues and strategies to contribute to best practice Questioning Staff andor client feedback Supporting statement of supervisor Authenticated evidence of relevant work experience andor formalinformal learning Role playsimulation
Access and equity considerations	All workers in the health industry should be aware of access and equity issues in relation to their own area of work All workers should develop their ability to work in a culturally diverse environment In recognition of particular health issues facing Aboriginal and Torres Strait Islander communities workers should be aware of cultural historical and current issues impacting on health of Aboriginal and Torres Strait Islander people Assessors and trainers must take into account relevant access and equity issues in particular relating to factors impacting on health of Aboriginal andor Torres Strait Islander clients and communities

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Range Statement

The Range Statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance.
Thermo-formed appliances may include:	Mouthguards Bleach trays Occlusal splints Baseplates Temporary crown stents Retaining devices Custom impression trays Orthodontic retainers Implant surgical guides
Thermo-forming equipment may include:	Vacuum Pressure

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