KnowledgeAssessment_HLTDET007_240123

STUDENT - KNOWLEDGE ASSESSMENT TASK KNOWLEDGE ASSESSMENT TASK Task Number 1 of 2 Task Name Knowledge Assessment National course/s code HLTDET007 National course/s title Construct removable acrylic partial dentures National qualification code HLT55118 National qualification title Diploma of dental technology RMIT Program code C5387 RMIT Course code DENT5867C Student Name Student Number Section A - Assessment Information Duration and/or due date: This assessment will be available to students at the start of the course and it must be completed by the end of this course. The exact date will be given to students at the start of the course. Task Instructions Summary and Purpose of Assessment This is the first of two assessments that you need to successfully complete to be deemed competent in this course. This course will provide you with the skills and knowledge required to construct removable acrylic partial dentures. Assessment Instructions What… You are to read the questions carefully to make sure you understand what you are being asked to do. You can ask your teacher for clarification on a question if you require. Answer all the questions as fully as possible in complete sentences. Go back and check your work to make sure you have answered every question fully. Some questions ask you to answer more than one thing, make sure you answer all parts of the questions. The spaces left for your answers are not an indication of the length of the required answer. Where… This assessment is to be completed your own time and submitted through Canvas online. How… Students will be assessed according to the ‘Criteria for Assessment’ outlined below. You must answer all questions correctly to be deemed satisfactory. Conditions for assessment  This assessment task allows you to demonstrate your knowledge of the theory in this course.  This is an individual assessment task. You must not copy the work of others.  Please note that the space available for your answers is NOT an indication of the required length of your response. Your answer should be as long as it needs to be to answer the question fully, and the space available should be increased or decreased as required.  This is intended as a written assessment. Please make arrangements with your assessor at least one week prior to the assessment due date if you feel you require special allowance or allowable adjustment to this assessment (e.g. verbal assessment or additional time).  Please include your full name on the student version of the assessment task (do not use nicknames or abbreviations). Knowledge Assessment Assessment Task 1 of 2 [Date of last update: 24/01/2023] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 1 of 18 RMIT Classification: Trusted STUDENT

 You are allowed minimal support only from your assessor e.g. Asking for clarification of a question.  You must answer all questions correctly to be deemed satisfactory.  You can appeal the assessment decision according to the RMIT Assessment Processes Instructions on submitting your knowledge assessment You must submit this document with your answers entered into the sections available below each question. You must submit this completed assessment online in Canvas with your full name and student number clearly on the document. Equipment/resources students must supply: Equipment/resources to be provided by RMIT or the workplace: Computer and relevant software Assessment document (available on Canvas) Knowledge Assessment Assessment Task 1 of 2 [Date of last update: 24/01/2023] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 2 of 18 RMIT Classification: Trusted STUDENT

4. When selecting and arranging the artificial teeth for a partial denture what is done to ensure that they are aesthetic for the patient? A: 5. There are a number of factors that must be considered when designing and manufacturing a partial removable acrylic denture around the existing structures of the oral cavity. (a) List the structures that are important to consider, and, (b) give an explanation as to how and why they need to be specifically considered. A: Polymers 6. (a) Describe the process of polymerisation. (b) How does the progression of the polymerisation process affect the way we manufacture partial acrylic dentures? A: 7. Modified polymers are commonly used in production of partial acrylic dentures. Define the following terms and give an example of each with the effect on properties: Term Description Example & affect Cross-linked polymers Copolymers Vinyl plastics Knowledge Assessment Assessment Task 1 of 2 [Date of last update: 24/01/2023] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 4 of 18 RMIT Classification: Trusted STUDENT

8. (a) Why would a clinician request “modified acrylic” teeth for a case? (b) Why would a clinician specify “regular” acrylic teeth? A: 9. (a) Why would a dentist request a “soft liner” on a mandibular denture? (b) In your answer explain how this liner gets its properties. A: 10. What qualities do acrylic plastics need to have for use with dental prosthetics? A: 11. Discuss the methods that must be used when designing and constructing prostheses with acrylic-metal combinations. Use images in your answer to help with your explanation. A: 12. Two different types of acrylic are used for making custom trays. Discuss how these differ from the acrylic used for making denture bases and explain why these differences are present. A: 13. Clinicians often require a modified acrylic to be used for a denture base (or as part of the base). Knowledge Assessment Assessment Task 1 of 2 [Date of last update: 24/01/2023] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 5 of 18 RMIT Classification: Trusted STUDENT

17. What are the advantages and disadvantages of the clasp-retained acrylic dentures? Give at least three examples for each Advantages Disadvantages 18. Make a sequential list of the stages followed when designing and manufacturing partial dentures. Assume that the case requires a try in. (You should have between 15 and 18 stages included in your list.) A: Stage #: Description 19. There are two types of “saddle area”. (a) Define the term “saddle area”. (b) Describe each of the two types of saddle area, including a drawing of a model that has an example of each type of saddle area. (c) Label the different saddle areas (and any other notable structures). Definition Knowledge Assessment Assessment Task 1 of 2 [Date of last update: 24/01/2023] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 7 of 18 RMIT Classification: Trusted STUDENT

Diagram showing Saddle Area types Description of the two types 20. How are removable acrylic partial dentures designed so that they resist rotation? A: 21. (a) Discuss the term “reciprocation” with regard to acrylic partial denture design. Use diagrams in your answer . (b) Why do we use reciprocation? A: 22. Discuss the terms “bracing”, “retention” and “support” with regard to acrylic partial denture design. Use diagrams in your answer. A: 23. What steps are performed after processing with regard to reviewing the prosthesis for hygiene, support and retention? A: 24. List the main components that make up a typical partial acrylic denture. A: Knowledge Assessment Assessment Task 1 of 2 [Date of last update: 24/01/2023] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 8 of 18 RMIT Classification: Trusted STUDENT

Type of force Description Surveying 31. (a) What is the purpose of the survey line? With your answer draw a tooth, complete with a survey line . (b) Label the following on your diagram:  survey line  infra-bulge area  supra-bulge area  undercut areas (c) How is this used with regard to clasp design? Include another diagram with a clasp and tooth to demonstrate. A: 32. (a) Why would we tilt the model during the surveying process? (b) What benefits does it bring - what is the important result from these manipulations? (c) What are the limitations we should observe? A: 33. Provide a definition for the term “Path of insertion/removal” in relation to partial denture design and function. A: 34. Draw the ideal relationship between the graphite (lead) and the lingual area of a model during surveying. Label the following: 1 facial and lingual areas 2 the undercut area 3 the tooth Knowledge Assessment Assessment Task 1 of 2 [Date of last update: 24/01/2023] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 10 of 18 RMIT Classification: Trusted STUDENT

4 the gingival tissue 5 the graphite (lead) 6 the survey lines 7 suprabulge area 8 infrabulge area A: Select and prepare materials 35. (a) What guidelines do you use for the selection of clasp materials for particular teeth in the arch or for teeth with a particular form/contour? (b)Why use these materials for these situations? (c)What other factors must be taken into account when constructing a clasp? A: 36. (a)When you are blocking out in the surveying process what kind of material will you select? (b) Describe why you will use this particular material and not something else. A: Construct retainer units. 37. (a) Name the two retainers most commonly used with removable acrylic partial dentures. (b) Draw examples of these clasps (including the clasp tag) as they would sit on a mandibular model after being bent to fit on appropriate teeth. Include the survey line on the tooth and the wax outline in that area. Make sure you label everything on your diagrams . (c) Include the FDI designation of the tooth. A: Select and prepare materials and processing technique 38. When investing the partial denture what gypsum will you use and why? A: Knowledge Assessment Assessment Task 1 of 2 [Date of last update: 24/01/2023] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 11 of 18 RMIT Classification: Trusted STUDENT

Quality Assurance 42. The following are photos of faults in the partial denture construction. Identify the fault and describe what caused it. Photo 1 What is wrong? What is the most likely cause? Knowledge Assessment Assessment Task 1 of 2 [Date of last update: 24/01/2023] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 13 of 18 RMIT Classification: Trusted STUDENT

Photo 2 What is wrong? What is the most likely cause? Knowledge Assessment Assessment Task 1 of 2 [Date of last update: 24/01/2023] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 14 of 18 RMIT Classification: Trusted STUDENT

Case Scenarios You work for a company called “A1 Dental Laboratory”. The company provides full laboratory services to Dental practitioners that include:  Complete and partial prosthetics  Crown & bridge  Cast partial denture framework The organization is located on the main street in the local shopping strip. The opening hours are between 9am and 5pm daily. There are four full time staff working daily in this organization including the following:  Margret Simmons – Senior Dental Technician and PCBU  Charlie Ling – Dental Technician  Allan Smith – Apprentice Dental Technician  Lisa Jones – Business administration manager The company has a practice manual in the administration office which includes all of the organizations policies and procedures, particularly with regards to safe work practice and infection control policies and procedures. 43. Margret wants Allan to start duplicating the blocked-out models, but she hasn’t the time to teach him. Instead, she asks you to show him the process – but beforehand she wants you to write up the ordered list of tasks for him to follow, and the reason for doing each task. Below, write up the table that you would prepare for Allan (there should be at least 12 steps) step # Task Reason for task 1 2 3 4 5 6 7 8 9 10 11 12 Knowledge Assessment Assessment Task 1 of 2 [Date of last update: 24/01/2023] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 16 of 18 RMIT Classification: Trusted STUDENT

44. Charlie has been asked to take you through the pumicing and polishing procedure for partial dentures. Having already completed the course at RMIT, what are the points that you expect him to go over and for what reason? (List at least 10 points for pumicing and at least 4 for polishing) A: Pumicing: Polishing: 45. Having polished a partial denture you place it onto the master model to get it ready for dispatch and notice that it is rocking on the model. Before taking it to Charlie what might you check to make his job easier/quicker? (List at least four items) A: Knowledge Assessment Assessment Task 1 of 2 [Date of last update: 24/01/2023] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 17 of 18 RMIT Classification: Trusted STUDENT