1 PowerPoint ® Presentation for Dental Materials with Labs Module: Restorative Materials: Amalgam Restorations.

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1 PowerPoint ® Presentation for Dental Materials with Labs Module: Restorative Materials: Amalgam Restorations

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 2 Module: Restorative Materials: Amalgam Restorations Restorative Materials: Amalgam Restorations Part A: Cavity Preparations Part B: Amalgam Restorative Material

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 3 Module: Restorative Materials: Amalgam Restorations Learning Objectives 1. Define the Key Terms. 2. List the components of amalgam alloy. 3. Identify cavity preparation terminology. 4. Demonstrate manipulation of calcium hydroxide and cavity varnish. 5. Demonstrate the steps of an amalgam restorative procedure.

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 4 Key Terms Alloy Amalgam Base Bonding agents Calcium hydroxide Cavosurface margin Corrosion

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 5 Part A: Cavity Preparations Restorative Dentistry decay fracture abrasion esthetics attrition

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 6 Cavity Preparations Outline form Resistance form Retention form Convenience form Refinement of cavity preparation Debridement of cavity preparation

7 Cavity Preparations Cavosurface margin Point angle Line angle Gingival wall Axial wall Pulpal wall

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 8 Cavity Preparations

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 9 Part B: Amalgam Restorative Material Alloy Capsule Trituration Amalgamator Amalgam bonding Mercury –Toxic –Handling guidelines SilverTin CopperZinc

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 10 Amalgam Restoration Set-up

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 11 Assessment Questions What is the largest component in an amalgam alloy? Silver What component of amalgam is optional? Zinc Why is the mercury in dental amalgam alloy considered controversial? Mercury is toxic and vaporizes when in its liquid state.

Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 12 Summary of Module Key Terms Cavity preparations Amalgam restorative material