AAO-HNSF Certificate Program for Otolaryngology Personnel

Bone Conduction • Use bone oscillator to present stimuli

• Does not measure the outer or middle ear response

• Sends stimuli to the inner ear, auditory nerve, and brain

AAO-HNS/F

Certificate Program for Otolaryngology Personnel Workshop

13

Bone Conduction • Typical placement of oscillator is on mastoid, but forehead placement is an option • Listener is not allowed to hold or touch the oscillator even though it is sometimes difficult to get good placement • Use same testing protocol with “bracketing” threshold • Can only test up to 4,000 Hz (not calibrated above that frequency)

AAO-HNS/F

Certificate Program for Otolaryngology Personnel Workshop

14

Bone Conduction (Continued)

• Responses represent “best bone” score • The better ear always responds without masking • Cannot get ear specific information without the use of masking • Sound travels through vibration of the bones

AAO-HNS/F

Certificate Program for Otolaryngology Personnel Workshop

15