There is provided a method and apparatus for a tongue implant to induce deformation of the tongue made of Nitinol in superelastic state at body temperature for the treatment of obstructive sleep apnea. In one embodiment the implant has a function of a V shaped spring, one leg helically inserted into the tongue, the other leg beneath the root of the tongue, to permanently compress the tongue. In another embodiment, there is provided a method and apparatus for placement of a helical implant to permanently compress the tongue by deforming it and stiffening it to maintain tongue stability for the treatment of obstructive sleep apnea.