I'd rather be sticking needles in my eyes. But that wasn't on the survey. iStockphoto hide caption toggle caption iStockphoto Shots - Health News Are You Flossing Or Just Lying About Flossing? The Dentist Knows June 24, 2015 A survey says one-quarter of adults lie to their dentist about flossing. That number seemed low to us. So we called up some periodontists. And they laughed.