The Tooth Phone is a wireless audio communications device that, through bone resonance, will allow humans to seamlessly communicate to anyone, at anytime, in any environment. People will no longer have to wear uncomfortable speaker and microphone devices, nor will they have to worry about crowded or high noise environments. Instead, the Tooth Phone provides a completely transparent way of communicating, one that is free of head or ear-mounted systems, enabling natural universal connectivity.

Using patented bone conduction technology, the Tooth Phone represents the first and only truly personal communication system. Specifically, the Tooth Phone picks up individual bone resonances, allowing sound to be transmitted solely from the user regardless of the environment. Similarly, only the user hears speech, as bone resonances do not leak and cannot be heard by anyone else.
When you speak normally, your skull bones vibrate a very small amount (less than 0.1 micron -bone conduction sound). Because it is attached to a rigid object, your tooth, the Tooth Phone is capable of detecting these tiny movements and converting them into electronic signals. Unlike traditional microphone technology, the Tooth Phone does not respond to surrounding noise because the noise exists in the air, and the Tooth Phone does not respond to air conduction sounds - only bone conduction sounds. Also, your skull provides isolation (about 40 dB SPL) from surrounding (air) noise, and it takes very loud noise before your skull begins to vibrate.

To provide hearing, the reverse is occurs. The Tooth Phone receives a speech signal and vibrates. The vibrations are transmitted via the bone conduction pathway to the nerve in your inner ear. Unlike a typical headset, because the Tooth Phone does not block the air conduction pathway, your ears remain open for conversational speech and sound localization.
(1) A US Patent #8,376,967 will issue on February 19, 2013.

(2) We are developing a mouth-worn tooth microphone that can be used to record night-time breathing sounds. Coupling our hardware with speech recognition software, similar to the core speech recognition technology on your mobile phone, we can analyze breath sounds. This system is should be capable of monitoring oral appliances used in the treatment of sleep apnea. We are calling the product: Tooth Phone System for Sleep Apnea Monitoring.