Impression Materials

An impression is made by placing a viscous, thixotropic impression material into the mouth via a custom or stock dental impression tray. The material, then sets to become an elastic solid, and, when removed from the mouth, provides a detailed and stable negative of teeth. Common materials used for dental impressions are sodium alginate, polyether and silicones - both condensation-cured silicones and addition-cured silicones, such as polyvinyl siloxane. Historically plaster of Paris, zinc oxide eugenol and agar have been used.

  • VPES impression materials
  • Alginate impression materials
  • Conventional Impression Materials
  • Digital Impression Materials

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