Impressions are taken for custom hearing aids, hearing aid moulds, custom made in ear monitors and hearing protection. The process involves placing a sponge stopper inside your ear canal. A silicon material is introduced into your ear to take the shape, this takes around 5 minutes to set. Once the material has set, it is removed, this provides the exact shape and size of an your ear so that it can be sent away to manufacture whatever you require.
Open jaw impressions involve the same procedure as a standard ear impression, however during the taking of the impression your jaw remains slightly opened. When your jaw is open it can alter the shape of the ear canal.