International Licensing Examination (ILE) Practice Test

What characteristic does a half shell earmold have?

1. It covers the entire concha and canal

2. It lacks the top half, including the upper concha and helix curl

3. It outlines the rim of the concha only

4. It provides a locking extension at the bottom

The correct answer is: It lacks the top half, including the upper concha and helix curl

A half shell earmold is designed specifically to shape and fit within the ear while leaving the upper portion of the ear, including the helix curl and the upper concha, exposed. This design allows for easier insertion and removal of hearing aids and comfortable wear, while also facilitating sound passage through the upper ear structure. The unique shape helps balance comfort and functionality, making it suitable for various hearing needs. The option that states the earmold covers the entire concha and canal describes a full shell earmold, which is different in design and coverage. The choice indicating it outlines only the rim of the concha refers to a rim or canal earmold, which provides even less coverage than a half shell design. Lastly, the mention of providing a locking extension at the bottom is characteristic of certain earmold styles but is not relevant to the defining feature of a half shell earmold, which focuses on its coverage and shape.