Oral-B Glide Pro-Health Threader Floss combines Glide floss and a built-in threader ideal for use with bridges braces and implants to effectively remove tough plaque between teeth and just below the gum line. Shred-resistant floss slides easily in tight spaces vs. regular floss. Satisfaction Guaranteed or your money back. For guarantee call 1-877-769-8791 within 60 days of purchase with UPC and receipt.