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The sensitivity of bone conduction for dental implants
Fengxuan Ren1, Yutong Li1, Lidan Chen1
1Department of Prosthodontics, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, 399 Middle Yanchang Road, Shanghai 200072, China.
The Journal of the Acoustical Society of America
|October 1, 2022
Summary
Dental implants offer excellent bone conduction hearing properties. This study found dental implants have significantly lower bone conduction thresholds compared to natural teeth and mastoids, suggesting their potential as hearing assistive devices.
Area of Science:
- Biomedical Engineering
- Audiology
- Dental Implantology
Background:
- Dental implants osseointegrate with alveolar bone, creating a direct bone interface.
- Bone conduction (BC) hearing assistive devices transmit sound via bone vibrations.
- The BC potential of dental implants has not been previously quantified.
Purpose of the Study:
- To investigate the pure tone auditory thresholds of dental implants in normal hearing subjects.
- To compare the BC properties of dental implants against natural teeth and mastoids.
- To evaluate the influence of implant location (maxillary vs. mandibular, anterior vs. posterior) on BC sensitivity.
Main Methods:
- Pure tone audiometry was used to measure BC thresholds in human subjects with dental implants.
- Thresholds were recorded for dental implants, natural teeth, and mastoid bone.
- Statistical analysis compared BC thresholds across different stimulation sites and implant locations.
Main Results:
- Dental implants demonstrated significantly lower BC thresholds compared to natural teeth and mastoids.
- BC sensitivity was comparable between mandibular and maxillary dental implants.
- Anterior dental implants exhibited significantly lower BC thresholds than posterior dental implants.
Conclusions:
- Dental implants possess excellent bone conduction properties.
- The findings support the potential use of dental implants as a platform for bone conduction hearing assistive devices.
- Implant location influences BC sensitivity, with anterior implants showing superior performance.
