Home / Orthodontics / Impression materials.

Impression materials.

  • Introduction
  • Definition
  • History
  • Classification
  • Requirements of an Impression Material
  • Impression Compound
  • Zinc Oxide Eugenol Impression Paste
  • Impression Plaster
  • Impression Waxes
  • Conclusion
  • References
  • ) Good resistance to tearing:-
  •       – On removing elastic impression materials from undercut areas,
  •            they are often put under a considerable tensile stress.
  •        – Impression materials should have sufficient mechanical strength
  •           not to tear or undergo permanent deformation during removal.
  •        – The thickest part of impression are
  •          compressed against the tray
  •          when they pass the widest part
  •          of the tooth crown.

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