Americans can now be scientifically divided into three categories: Those who floss daily, those who never floss and those who fall somewhere in between.
The first nationally representative analysis designed to determine how many people floss their teeth found that those who floss daily amount to 30 percent of the population. Just over 37 percent report less than daily flossing; slightly over 32 percent say they never floss.
Lead author Duong T. Nguyen, a medical epidemiologist, said the idea for the study hit him one day when he was rummaging through his house looking for dental floss.
“I wondered how many people really do [floss],” says Nguyen, of the Centers for Disease Control and Prevention. A little checking revealed that “nobody had ever looked at this before,” at least in a rigorous, scientifically valid analysis, he says.
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