Abstract: A mouth guard system for displaying a message using interchangeable tiles resembling teeth features an upper mouth guard. A plurality of tile channels, tile openings, and tile insertion apertures is located in the upper mouth guard. The system features a lower mouth guard. A plurality of tile channels, tile openings, and tile insertion apertures is located in the upper mouth guard. Each tile opening features a shape resembling a tooth. The system features a plurality of tiles designed to snuggly slide into the tile channel via the tile insertion aperture. The tile is visible via the tile opening. A tile cutout of a symbol, a character, or a picture is located throughout a cross-section of the tile from a tile front surface to a tile rear surface. A back wall of the tile channel is visible through the tile cutout. Each tile features rounded edges and rounded corners.