Ear Impression Terminology

Ear impression material has been developed to provide certain characteristics to enable it to provide as accurate a representation of the concha and/or ear canal as possible. This means that it should flow properly, provide an accurate image of what it comes in contact with, set up properly without distortion, remove without distortion or breakage,…

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Ear Impression Materials – Ethyl Methacrylate to Silicone

The history of ear impression materials has not been systematically traced, even though what have been described as “custom” earmolds have been reported to at least 18851, implying that some kind of ear impression served as a model. The first report identifying an impression material for the ear (wax) was by Hawksley in 1890.  The Hawksley…

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