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WebMar 20, 2013 · Gumshields. Jacob “Jack” Marks constructed the first custom fitted Gumshield in the early of 1900’s. He fabricated a rubber strip that fit securely under the lip and over the outer surfaces of the teeth and gingiva. Before that, boxers used to place other materials as cotton, gutta-percha between lips and teeth for protection. WebFeb 10, 2024 · HIGHLIGHTS: This is another pack of 4 BPA free, moldable night guards which are distributed in two different sizes. It is brought to you by one of the reliable companies on the market which is always … WebWhat are the different types of gum shields? Mouth-formed gum shields: There are two types of mouth-formed gum shields. The first is a shell-liner mouthguard that is made with an acrylic material that is poured into an … mize coaching