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The refined carbohydrates found in saltines and many other types of crackers convert to sugar in the mouth very quickly, providing fodder for cavity-forming bacteria. Crackers also become mushy when chewed, turning into a paste-like goop that builds up in your molars and lodges between teeth.

If you frequently binge on crackers you may have cause for concern, but eating them in moderation isn't likely to cause any long-term problems—"as long as you do a thorough job brushing and flossing," Messina says. "Good oral hygiene will compensate for almost anything."

(Getty Images)

The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.

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