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Ear Impressions
All custom made hearing aids and earmolds are made from a
"cast" of the ear. The cast is referred to as an
ear impression. The audiologist or hearing aid dispenser makes
the ear impression in the office. It takes about 10 to 15
minutes. The audiologist places a special cotton or foam dam
in the ear canal to protect the eardrum, and then a waxy material
is placed in the ear canal. When the material hardens (about
5 to 10 minutes later) the wax cast, along with the dam are
removed from the ear canal. Often, the ear canal will be "oily"
after the impression is removed. This is normal. The oil comes
from the wax material and prevents the wax material from sticking
to the skin.
Tell the audiologist before the ear impression is obtained
if you are allergic to plastic or dyes!
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