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Category: independent hearing aid dispenser

Hearing Self-Test

Wayne Staab 1 Comment Audiogram / Audiograms / Hearing / Hearing aid / Hearing aid dispenser / Hearing aid selection / Hearing aids / hearing impaired / hearing impairment / Hearing loss / Hearing self-test / independent hearing aid dispenser / Mild hearing impairment / Moderate hearing impairment / Moderately-severe hearing impairment / Normal hearing / OTC hearing aid selection / Profound hearing impairment / Pure-tone audiogram / Severe hearing impairment

Legalized OTC (over-the-counter) hearing aids are expected as a hearing-impaired consumer option. One of the arguments against this practice is that the potential purchaser has not had an audiogram from which to determine the type and degree of hearing levels to assist in the selection of the appropriate hearing aid, if such is to be recommended.…

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Ear Impression Materials – Ethyl Methacrylate to Silicone

Wayne Staab 2 Comments Audiologists / Audiology / Custom Earmold / Ear impression material / Ear impression materials / Ear Impressions / Earmold / Earmolds for astronauts / Ethyl methacrylate / Formtex impression material / Hal-Hen / Hearing aid evaluations / Hearing aids / Hearing professionals / Houston Space Control / independent hearing aid dispenser / Marveltex / Mid-States Laboratories / Plaster of Paris / Powder and liquid / RIA / RIC / RIC (Receiver-in-Canal) / Scientific Moulding Laboratory

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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