Mouthguard and method of making
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United States of America Patent
Stats
-
Jul 1, 2003
Grant Date -
N/A
app pub date -
May 24, 2002
filing date -
May 25, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a bilayer mouthguard fabricated from a high impact thermoplastic polymer blend having the ability to absorb, attenuate, and dissipate shock forces and a method of fabricating a mouthguard. The present invention utilizes a polymer blend comprising ethylene vinyl acetate and a thermoplastic urethane. The bilayer mouthguard has a U-shape base and is defined by inner lingual and outer labial walls, a channel for receiving the upper jaw and teeth, cushion pads laying within the U-shape base, and in certain designs a transition support portion extending forward from the posterior cushion pads connecting with an anterior impact brace that extends into the outer labial wall.
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