Self aligning false teeth - have trapezoidal magnets near back teeth in top and bottom plates

摘要

A set of false teeth has a permanent magnet (11, 16) embedded in both the upper and lower plates, one each side, in the region inside the back teeth. Each magnet is trapeze shaped, and those in the upper plate have their narrow ends (12) pointing forwards. Those in the lower plate have their broad ends (13) pointing forwards. When the plates are in the closed position, the magnets align, but face in opposite directions, sloping at an angle (alpha) to the centre line, about which they are symmetrical. An alternative has rectangular permanent magnets.