Patent ID: 6505625
Filing Date: 2003-01-14
Classification: A61C,Y10S

Abstract:
A mouthpiece comprising:an upper piece to be fitted to a row of teeth on an upper jaw side; a lower piece to be fitted to a row of teeth on a lower jaw side in a vertically confronting relation with said upper piece; and at least two projections projecting from one of a bottom surface of said upper piece and a top surface of said lower piece toward another of said upper piece and said lower piece without said at least two projections, wherein another surface of said bottom surface of said upper piece and said top surface of said lower piece without said at least two projections has a planar surface formed to support said at least two projections, be in slidable relation with said at least two projections in all directions along said planar surface, and be perpendicular to said at least two projections when said another surface and said at least two projections are in contact.