testing hearing aids

Jeffrey Sirianni audioman at HCTC.NET
Wed Jul 16 00:16:16 EST 1997


"James G. Odom" <jgodom at eramp.net> writes:

>That info could be significant. The effects of jaw movement have been
>well established in regard to CIC fits. Sometimes that can be addressed
>by using the "open jaw" impression technique, having the user keep a
>dental dam between the teeth while the impression material is injected.
>That helps compensate for any wide range of movement that could cause
>shifting of the aid.

For deep canal impressions, I was trained to have patients talk as well
as open and close their jaws in order to obtain jaw movements in the
impression.  There have been recent articles on enclosing two impressions
per ear (one with jaw closed, and one with jaw open).  Is this better than
one impression where the person opens and closes their jaw while the material
is setting?  What are some thoughts from others who do a lot of CIC fittings?

Jeff

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