Earmold

Earmold

This medical device related article is a stub.

An earmold is a custom-made medical device that is used in conjunction with hearing aids to deliver sound directly into the ear canal. Earmolds are typically made from materials such as silicone, acrylic, or soft vinyl, and are designed to fit the unique contours of an individual's ear.

Purpose

Earmolds serve several important functions in the use of hearing aids:

• They help to secure the hearing aid in place, preventing it from falling out.
• They provide a seal that helps to prevent feedback (a whistling sound) by ensuring that sound does not leak out of the ear canal.
• They can be used to modify the acoustic properties of the sound delivered by the hearing aid, enhancing the user's listening experience.

Types of Earmolds

Earmolds come in various styles and types, each suited for different needs and preferences:

• Full-shell earmolds: These cover the entire concha bowl of the ear and are often used for severe hearing loss as they provide a tight seal.
• Half-shell earmolds: These cover only the lower part of the concha and are suitable for mild to moderate hearing loss.
• Canal earmolds: These fit entirely within the ear canal and are less visible, often preferred for cosmetic reasons.
• Skeleton earmolds: These have a cut-out design that makes them lighter and more comfortable while still providing a good seal.

Materials

Earmolds can be made from various materials, each offering different benefits:

• Silicone: Known for its flexibility and comfort, silicone is often used for earmolds that require a tight seal.
• Acrylic: A hard material that is durable and easy to modify, acrylic is often used for earmolds that need to be adjusted frequently.
• Soft vinyl: Offers a balance between comfort and durability, suitable for a wide range of users.

Fitting Process

The process of creating an earmold involves taking an impression of the ear. This is done by a hearing healthcare professional who injects a soft material into the ear canal and outer ear. Once the material hardens, it is removed and used to create a mold that perfectly matches the shape of the ear.

Maintenance

Proper maintenance of earmolds is essential to ensure their longevity and effectiveness:

• Regular cleaning with a soft, damp cloth to remove earwax and debris.
• Periodic checks for wear and tear, as earmolds can become damaged over time.
• Replacement as needed, typically every few years, depending on the material and usage.

See Also

• Hearing aid
• Audiology
• Ear canal

External Links

• Hearing Link: Earmoulds
• ASHA: Hearing Aids for Adults