Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 1 Module: Orthodontics PowerPoint ® Presentation for Specialty Chairside Assisting with Labs

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 2 Module: Orthodontics Orthodontics Part A: The Orthodontic Team Part B: Orthodontics

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 3 Module: Orthodontics Learning Objectives 1. Define the Key Terms. 2. Define and describe orthodontics and the DA’s role in an orthodontic setting. 3. Describe occlusion and malocclusion. 4. Define and describe what is included in preventive, interceptive, and corrective orthodontic treatment. 5. Explain the process of tooth movement.

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 4 Module: Orthodontics Learning Objectives 6. Differentiate between fixed and removable appliances. 7. State the functions of basic orthodontic instruments. 8. Describe the stages of orthodontic treatment. 9. Demonstrate the knowledge and ability to assist during orthodontic treatment.

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 5 Key Terms Activator Angle’s classification Arch wires Brackets Buccal tubes Buccoversion Corrective orthodontics Distoversion Elastics Fixed appliances Headgear Interceptive Invisible aligners Ligature wire Linguoversion Malocclusion Normal occlusion

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 6 Key Terms Orthodontic bands Overbite Removable appliances Resorption Separators Space maintainer Springs

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 7 Part A: The Orthodontic Team

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 8 The Orthodontic Team Orthodontist Reception and business-office staff Office coordinator Laboratory technician Orthodontic assistant

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 9 Responsibilities of the Orthodontic Assistant Take study model impressions Take and process intraoral and extraoral radiographs Do the tracing on cephalometric radiographs Give oral hygiene instructions and instruction on appliance wear and care Prefit bands before cementation Apply sealants to teeth to be bonded Place and remove arch wires and ligatures

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 10 Part B: Orthodontics Normal occulsion Malocclusion

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 11 Causes of Malocclusion Genetic factors Systemic factors Local factors

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 12 Malpositions of Groups of Teeth Anterior cross-bite Posterior cross-bite Edge-to-edge bite End-to-end bite Open bite Overjet Overbite Underjet

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 13 Types of Orthodontic Treatment Preventive and Interceptive treatment Corrective treatment

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 14 Process of Tooth Movement OsteoblastsOsteoclasts

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 15 Orthodontic Appliances Fixed appliances Removal appliances

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 16 Orthodontic Instruments

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 17 Orthodontic Instruments

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 18 The Orthodontic Patient The diagnostic appointment The consultative appointment

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 19 Sequence of Orthodontic Treatment Application of separators Placement of the posterior bands Placement of the anterior brackets Placement of the arch wire Interval checkups Completion appointment

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 20 Assessment Questions What are the three causes of malocclusion? Genetic, systemic, and local factors What are the bone-resorbing cells called? Osteoclasts What are the bone-forming cells called? Osteoblasts

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 21 Summary of Module Key Terms The orthodontic team Normal occlusion Malocclusion Types of orthodontic treatment Orthodontic appliances and instruments The orthodontic patient