Recently on show at the London Science Museum, the audio tooth concept is set to expand dentistry well beyond the realm of fillings, extractions and canal work . A tiny implant consisting of a wireless receiver and a micro-vibration unit that uses bone resonance to convert digital signals received from a mobile telephone, radio or computer into vibrations or "sound" that reach the inner ear via the jawbone.
This creates a totally discreet line of audio communication that can be heard by no one except the user - very useful on the floor of the stock exchange, in theatres, sporting fields, covert operations, or in a host of situations where fast and confidential exchanges of information are necessary.
