Module 4

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 1

Module: Orthodontics

PowerPoint® Presentation for Specialty Chairside Assisting

with Labs


Module:Orthodontics

Orthodontics

Part A: The Orthodontic Team

Part B: Orthodontics


Module:Orthodontics

Learning Objectives1. 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.


Module:Orthodontics

Learning Objectives6. 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.


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


Key Terms

• Orthodontic bands• Overbite• Removable appliances• Resorption• Separators• Space maintainer• Springs


Part A: The Orthodontic Team


The Orthodontic Team

• Orthodontist• Reception and business-office staff• Office coordinator• Laboratory technician• Orthodontic assistant


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


Part B: Orthodontics

Normal occulsion

Malocclusion


Causes of Malocclusion

Genetic factors

Systemic factors

Local factors


Malpositions of Groups of Teeth

• Anterior cross-bite• Posterior cross-bite• Edge-to-edge bite• End-to-end bite• Open bite• Overjet• Overbite• Underjet


Types of Orthodontic Treatment

Preventive andInterceptive treatment

Corrective treatment


Process of Tooth Movement

Osteoblasts Osteoclasts


Orthodontic Appliances

Fixed appliances

Removal appliances


Orthodontic Instruments


The Orthodontic Patient

The diagnosticappointment

The consultativeappointment


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


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


Summary of Module

• Key Terms• The orthodontic team• Normal occlusion• Malocclusion• Types of orthodontic treatment• Orthodontic appliances and instruments• The orthodontic patient

Module 4

Documents

Transcript of Module 4