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DENT 5102, Fall 2007

DENT 5102, Fall 2007. Unit 2. Restorative Materials Unit 3. Dental Caries. Restorative Materials. According to radiographic density beginning with most radiopaque Group I. Gold alloys, amalgam,silver

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DENT 5102, Fall 2007

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  1. DENT 5102, Fall 2007 Unit 2. Restorative Materials Unit 3. Dental Caries

  2. Restorative Materials • According to radiographic density beginning with most radiopaque • Group I. Gold alloys, amalgam,silver • Group II. Gutta percha, zinc oxyphosphate or other base materials, composite with opacifier, rubber base impression material, calcium hydroxide with opacifier

  3. Restorative Materials (Cont.) • Group III. Porcelain • Group IV. Radiolucent. Calcium hydroxide, composite, resin

  4. Radiographic Interpretation of Dental CariesUnit 3

  5. Severity of Caries • Early, incipient (1st degree) • Moderate (2nd degree) • Advanced (3rd degree) • Extensive (4th degree)

  6. Caries Progression

  7. Location of Caries • Occlusal, incisal • Proximal • Lingual, palatal • Facial • Cemental • Recurrent

  8. Incipient Caries

  9. Occlusal Caries

  10. Occlusal Caries

  11. Proximal Caries

  12. Proximal Caries

  13. Proximal Caries

  14. Cemental Caries

  15. Recurrent Caries • Caries immediately next to a restoration • Inadequate margins or excavation • Pulpal necrosis • Metallic restorations often hide • Clinical examination

  16. Recurrent Caries

  17. Recurrent Caries

  18. Adumbration (Cervical Burnout)

  19. Occlusal Caries

  20. Adumbration

  21. Adumbration • Between CEJ and alveolar crest • Diffuse radiolucency • Ill-defined borders • Presence of the edge of root • Clinical evaluation

  22. Adumbration

  23. Caries: Xerostomia • Therapeutic radiation • Xerostomia • Sjogren’s syndrome • Caries begins at cervical region • Extensive decay

  24. Rampant Caries • Children • Poor dietary habits • Extensive caries • Proximal and smooth surface • Socio-economic factors

  25. Rampant Caries

  26. Rampant Caries

  27. Factors In Caries Diagnosis • Location of the tooth • Surface involved • Size of the carious lesion • Restoration, material • X-ray beam angulation • Film placement

  28. Factors In Caries Diagnosis • Film type • Developer solution – age • kVp • mAs • Room lighting • Observer

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