1. Copyright © 2012, 2006, 2000, 1996 by Saunders, an imprint of Elsevier Inc. Identification of Restorations, Dental Materials, and Foreign Objects

2. Copyright © 2012, 2006, 2000, 1996 by Saunders, an imprint of Elsevier Inc. 2 Silver Fillings  Amalgam restorations  Overhang - extends beyond margins  Fragments – excess left behind  Tattoo – discoloration of tissue (not visible on radiograph

3. Copyright © 2012, 2006, 2000, 1996 by Saunders, an imprint of Elsevier Inc. 3 Types of Gold Restorations  Full gold crowns  Gold onlay

4. Copyright © 2012, 2006, 2000, 1996 by Saunders, an imprint of Elsevier Inc. 4 Miscellaneous Crowns  Stainless steel and chrome crowns  Notice they seem see through  Porcelain restorations

5. Copyright © 2012, 2006, 2000, 1996 by Saunders, an imprint of Elsevier Inc. 5 Additional Restorations  Post and core restorations  Notice you can see grooves on the post  Pin retained  Composite restorations  Can appear radiolucent or radiopaque  Acrylic restorations  More commonly appear radiolucent

6. Copyright © 2012, 2006, 2000, 1996 by Saunders, an imprint of Elsevier Inc. 6 Materials Used in Endodontics  Gutta percha  Gutta percha is a claylike material used to fill pulp canals.  Appears radiopaque, similar to base materials, is less radiodense than metallic restorations.  Silver points  These are used to fill pulp canals.  They are very radiopaque, similar to other metallic materials, appear more radiodense than gutta percha.

7. Copyright © 2012, 2006, 2000, 1996 by Saunders, an imprint of Elsevier Inc. 7 Materials Used in Removable Prosthodontics  Patients should be instructed to remove all complete and partial dentures before dental images are taken.  Complete dentures A complete denture that is not removed gives the illusion of rootless, or “floating” teeth. A complete denture that is not removed gives the illusion of rootless, or “floating” teeth.  Removable partial dentures An RPD with a metal base with acrylic saddles appears densely radiopaque where metal is present and slightly radiopaque in the areas of acrylic. An RPD with a metal base with acrylic saddles appears densely radiopaque where metal is present and slightly radiopaque in the areas of acrylic.

8. Copyright © 2012, 2006, 2000, 1996 by Saunders, an imprint of Elsevier Inc. 8 Materials Used in Orthodontics  Orthodontic bands, brackets, and wires may be observed on dental images.  They have a characteristic appearance.

9. Copyright © 2012, 2006, 2000, 1996 by Saunders, an imprint of Elsevier Inc. 9 Materials Used in Oral Surgery  Implants are being used with increased frequency.  The appearance varies based on the shape and design of the implant used.  Suture wires, metallic splints and plates, bone screws, and stabilizing arches are used in oral surgery to stabilize fractures of the maxilla and mandible.

10. Copyright © 2012, 2006, 2000, 1996 by Saunders, an imprint of Elsevier Inc. 10 Identification of Miscellaneous Objects  Jewelry  Eyeglasses and napkin chain