10 Surprising Things People Lose on Roller Coasters

Theme parks recover lots of dentures after roller coaster rides. Most go unclaimed. Sean Murphy/ Image Bank/Getty Images

If you're young and relatively healthy, you have absolutely no reason to think about dentures. But the truth is there are millions of people in the United States who rely on full or partial dentures — sets of custom-fitted false teeth — to successfully speak, eat and smile.

According to the American College of Prosthodontists, there are 178 million Americans missing at least one tooth, and 35 million people in America with no natural teeth at all. The medical term for toothlessness is edentulism; a full 90 percent of the edentulous population wears dentures [source: ACP].

Because dentures need to be removed daily and cleaned, they are not physically attached to the mouth, which has some serious comic potential. According to the lost and found staff at Disneyland, the park recovers "a lot of dentures," including "full sets of uppers and lowers sometimes" [source: Lait].

Not surprisingly, perhaps, the lost dentures mostly turn up near the tracks of Space Mountain, the Matterhorn and Big Thunder, likely ejected from the mouths of screaming elderly riders. Most go unclaimed [source: Lait].