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Most people think that a mouth guard is just for the inside of your mouth (teeth, cheeks, tongue). The main reason is that it protects your brain from getting a concussion from stopping the brain from moving. A strong bite will secure the blow to the head and decrease the chance of a concussion.

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15y ago
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13y ago

They stop the teeth from chipping each other.

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Q: What purpose are mouth guards used for?
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