Ear Impression Terms – Part 2

Terminology associated with ear impression material is sometimes confusing to those who take ear impressions on a routine basis.  This post continues the discussion on ear impression terms from a previous post. Compression Set   This is the amount of permanent deformation resulting when a material is compressed to a specific deformation for a specified…

Read More

Ethyl Methacrylate to Silicone Ear Impressions

Ear impression material is basically a compound (substance formed from two or more elements) with polymer, or a blend of polymers, as the fundamental component in determining the impression material properties.  Affecting the polymer makeup are the type of molecular forces that are applied.  Monomers (one part) are the building blocks that when bonded together…

Read More