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Making a Good (Ear) Impression: Setting Up a Successful Impression Taking Protocol

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1.  Which of these is a standard type of impression material? Acrylic Powder and Liquid Condensation-cure silicone Addition-cure vinylpolysiloxane aka silicone All of the above

2.  Viscosity: The measure of the extent to which a solid possesses this property The state of being of a solid The measure of the material consistency before polymerization. Having a thin or runny consistency

3.  To be feedback free and well fitting, an impression should: Have no gaps or air pockets Fully Illustrate the two bends of the ear canal Reflect the softness of the cartilaginous tissue of the ear All of the above

4.  Otoscopic examination should include: Examination for abnormalities Observe landmarks in the canal Evaluate for correct otoblock size All of the above

5.  An impression for an Invisible In the Canal hearing aid should use: Foam otoblock Low-viscosity Silicone Impression Material No otoblock Powder/Liquid Acrylic Impression Material

6.  Which answer would NOT be part of a proper checklist, prior to taking ear impressions: Proper case history Observance for proper hygiene and inflection control No need for otoscopy Instruct the patient on the ear impression process

7.  Recommended steps to remove a completed ear impression include: Break the seal prior to removing the impression Follow up otoscopy to examine the ear canal, tympanic membrane Inspect the ear impression for quality, repeat if necessary All of the above

8.  Ear impression specific case history should include: Infection risk Diabetes Blood Thinning medications All of the above.

9.  Proper Otoblock Placement includes: Verifying the otoblock fits snugly enough to avoid blow by Flatten the otoblock before placement Placing a cotton ball in the ear canal to block the impression material A and B only.

10.  Which answer would be a contraindication for making a deep canal ear impression? Exostoses Tympanic Perforation Osteoma All of the Above