Abstract: A two-piece mouthguard is composed of separate pieces of flat cushioning material which contain pre-formed notches, cutouts and holes that permit the separate pieces to be fitted together into the proper shape and configuration of a mouthguard. A horseshoe-shaped bite plate member includes a pair of left and right curved slots and a frontal interlocking tab joint which secures the bite plate member to a vertical member which after assembly assumes the approximate shape of the dental arch. The vertical member includes a centrally-located slot which receives the interlocking tab on the bite plate member. A handgrip projects from the front of the bite plate member which includes an aperture that may be used to secure a tether.