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Most things I have read say it can be detected up to 72 hours. Some resources suggest it can be deteced even longer, but the most reliable source I found was from a laboratory site and they said up to 72 hours. Best bet for passing before the 72 hours is up, is to brush well (including cheeks, gums, tongue, and roof of mouth), floss, and use mouthwash. I have also heard it helps to munch on mints often or use Listerine strips just before going in.

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17y ago

What else can I help you with?