Intraindividual Comparison of the Bone-Anchored Hearing Aid and Air-Conduction Hearing Aids

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Abstract
BONE-CONDUCTION hearing aids have been in use since the 18th century.1 Generally, a bone-conduction hearing aid is considered inferior to an air-conduction hearing aid because of its often clumsy appearance, poor frequency response, and inadequate gain.2,3 Therefore, bone-conduction hearing aids are only fitted to patients if problems arise with air-conduction hearing aids, such as chronic otitis media, chronic otitis externa, or congenital atresia of the ear canal. Surprisingly, few authors3 have made an audiometric comparison between conventional bone-conduction hearing aids and air-conduction hearing aids.