Typically, the idea of hearing aids invokes the idea of conventional devices that raise the volume of sound through the canal of the ear. For people struggling with specific hearing impairments, including relentless ear problems or unilateral deafness, a different option may provide enhanced sound quality and user comfort: bone conduction hearing aids.
The Capability of Bone Conduction Hearing Devices
With bone conduction hearing devices, the outer and middle ear are bypassed. Rather than sending sound through the air, they transfer vibrations through the bones of the head to the inner ear (cochlea), where the sound is processed. This means that even if the ear canal is blocked or damaged, sound can still get to the auditory nerve. Think about this example: When you cover your ears and are still able to hear the sound of your own voice when talking, that’s an example of bone conduction working.
Bone Conduction vs. Conventional Hearing Aids
Standard hearing aids increase sound and direct it into the ear canal. This approach is especially effective for individuals who have experienced damage to the inner ear or the nerve responsible for transmitting sound, causing sensorineural hearing loss. But if the problem is with the outer or middle ear, as a result of infection, fluid accumulation, or structural issues, standard hearing aids may not be effective or comfortable. Bone conduction hearing devices are typically a better option in these instances because they bypass the issue areas and deliver sound directly to your cochlea.
Bone Conduction Candidates
Situations where bone conduction devices are appropriate:
- Sound waves are unable to travel through the outer or middle ear, leading to conductive hearing loss.
- Persistent ear infections or problems with fluid drainage could be aggravated by traditional hearing aids.
- People with deformed ear canals or the absence of outer ears, who might not qualify for conventional devices.
- Single-sided deafness (SSD), where one ear has severe hearing loss or no hearing. These devices offer a non-intrusive option that is typically more comfortable, especially for individuals, both young and old, who experience recurring ear issues.
Implantable vs. Non-Implantable Options:
There are two main kinds of bone conduction hearing devices:
- Non-implantable (worn externally): These are typically held in place with a headband, softband, or adhesive pad. They’re ideal for children, those trying out bone conduction for the first time, or individuals not prepared for surgery.
- Surgically embeded devices involve a tiny device placed underneath the skin, which is connected to a separate sound processor worn outside the body. Long-term users often find that they provide more effective and dependable results. A professional assessment by an audiologist or ENT specialist will determine the most suitable option for you, considering your age, individual anatomy, and personal hearing objectives.
Perks of Using Bone Conduction Hearing Devices
- Suitable for sensitive ears – does not necessitate insertion into the ear canal
- Great audio quality remains consistent, in spite of recurring issues with the ears
- Great for unique anatomy– helpful for individuals born without a complete outer ear or with other structural differences
- Improved communication– especially in school, work, or noisy environments
If you or your child copes with hearing in one or both ears, particularly due to persistent infections or conductive issues, bone conduction hearing devices might be worth exploring.
Make an appointment with an audiologist today to get more information.
Sources: https://www.dukehealth.org/treatments/ear-nose-and-throat/bone-conduction-hearing-aid https://www.hopkinsmedicine.org/health/treatment-tests-and-therapies/baha–the-implantable- hearing-device https://www.ndcs.org.uk/advice-and-support/all-advice-and-support-topics/hearing-aids- implants-and-assistive-technology/ hearing-aids-and-implants/ bone-conduction-devices https://my.clevelandclinic.org/health/treatments/14794-bone-anchored-auditory-implant