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…
Read More
Ear Impression History – From Teeth to the Ear
Earmolds for hearing aids have been a staple for many years, made from impressions of the ear. Although considerable information exists about the earmold, the finished product, early ear impression history is murky. What we do know is that ear impressions took their lead from impressions of the teeth (dentistry), following somewhat later. The contribution…
Read More