The SoundBite is a hearing aid for people who have single-sided deafness. Rather than amplifying sound like a traditional hearing aid, however, this one transmits it wirelessly to a unit attached to the wearer's molar, sending vibrations through the teeth and jawbone.
It's a pretty interesting solution, and apparently is much better than the previous solutions for single-sided deafness. And since it doesn't require surgery, it's a completely non-invasive treatment. With clinical trials showing patients getting 80 to 100 percent of their hearing back, it should become the go-to treatment from here on out.