Dental Material L6

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Dental Material L6

  1. 1. L6 : Impression Material Part 1 By Fathin Fariha Suffi Liyana
  2. 2. Impression • Negative reproduction of the teeth and the surrounding oral tissue Cast • Created from impression ( positive reproduction of these structures)
  3. 3. Classification of Impression Primary Impression Final Impression Bite Registration
  4. 4. Primary impression Diagnostic cast Special tray Orthodontics appliances
  5. 5. Final Impression •Produce most accurate cast => essential to create => partial @ full denture and implant
  6. 6. Bite Registration •Produce a reproduction of the occlusal relationship of => maxillary & mandibular teeth => mouth is occluded
  7. 7. Cross infection Control Stage 1 Clinic to Lab Stage 2 Lab to Clinic
  8. 8. Impression Tray • Metal & Plastic Perforated • Bite Tray Stock Tray • Acrylic Resin Materials • Light-cured resin Materials Special Tray
  9. 9. Impression Materials Elastic Non Elastic
  10. 10. Non-elastic Materials Impression Compound Sheet @ Stick , softened using hot water Zinc Oxide – eugenol Impression 2 paste impression , mixing on the paper pad

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