而STRING FLOSS在COSTCO似乎只有ORAL-B GLIDE这一款，用习惯了。
Oral-B has reformulated its Glide floss, shifting from a PTFE (Teflon)-based material to a new micro-textured nylon fiber, resulting in a different feel and performance, with many users finding the old version smoother and the new version harder to slide, shred more easily, and feel lower quality, while Oral-B highlights the new version's improved plaque-grabbing texture and removal of PFAS/PTFE for better comfort and cleaning. The change affects various Glide products, including Deep Clean and Advanced, with some consumers actively seeking the discontinued "old" version for its ease of use.
