Sports mouthguard with shim

Claim 1

An improved sports mouthguard in combination with a shim, used for molding the mouthpiece, comprising: a member with a channel shaped cross-section, formed from a deformable material, said deformable material being adapted to be impressed by the upper and lower teeth and to conform thereto, and said member having two ends and an approximate U-shape corresponding to the shape of the arch of the upper jaw, and being defined by a bottom wall designed to engage the lower teeth, and front and rear side walls extending upward therefrom forming a channel with a floor for receiving the upper teeth, wherein the channel floor and bottom wall are sealed at the member ends, and the bottom wall laterally comprises a surface of sufficient width to extend laterally the full width of the lower teeth and engage the buccal and lingual cusps of the lower teeth, and wherein the anterior portion of said bottom wall is recessed upwardly to provide a space between said anterior portion and the lower teeth incisors; two, molar, energy absorbing, elastomeric, insert pads, each encased within the member and extending one each from the left and right bicuspids posteriorly the length of the molar region, said insert pads being positioned between the channel floor and the bottom wall of the member, wherein said insert pads are more compressible than said member; and a removable shim filling in the upward recess of the bottom wall for engaging the lower teeth incisors to facillitate proper positioning of the mouthguard during fitting.