Instant Earmolds From Impressions

The desire to use the ear impression as the final earmold was an early objective of some earmold impression providers. For hearing aid dispensers, to be able to provide instant earmolds from impressions would certainly circumvent many of the problems they encountered with delays in delivery, remakes, distant service calls, cost, etc.      Early instant…

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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…

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