Glide · Dental Floss
Oral-B Glide Pro-Health Comfort Plus Dental Floss
Lower-concern choice for dental floss, but Oral-B doesn't disclose PFAS-free status.
Oral-B Glide Pro-Health uses expanded Teflon-type coating (a Teflon-family coating) as its primary floss material. Teflon-type coating itself is not soluble and poses minimal ingestion risk in dental floss form.
Shop Glide on Amazon →Material
Expanded Teflon-type coating floss fiber (nylon-free formulation)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
cosmetics is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
Oral-B Glide Pro-Health uses expanded polytetrafluoroethylene (ePTFE) fiber, a synthetic Teflon-family coating designed to slide between teeth with minimal shredding. Unlike traditional nylon floss, this material does not require coating with wax or silicone to reduce friction, which eliminates several potential leachable additives. Expanded Teflon-type coating itself is chemically stable and poses no inhalation risk during normal flossing (Teflon-type coating fume hazard only occurs at temperatures above 260°C, far beyond oral use). The nylon-free formulation removes concerns about synthetic polymer fragmentation in the gum line.
The brand's record and disclosure
Oral-B is owned by Procter and Gamble, a large multinational with mixed transparency on PFAS in consumer goods. P&G has not publicly committed to PFAS phase-out in dental floss or disclosed PFAS-free certification for this product. No FDA warnings, product recalls, or documented safety incidents linked to Glide floss composition have been published. The brand maintains general safety claims but does not distinguish this product as PFAS-minimal or PFAS-free.
How it compares in its category
Most dental flosses on the market either contain Teflon-type coating-based fibers (Glide, Crest Glide) or traditional waxed nylon alternatives. Teflon-type coating flosses generally carry lower chemical additive burden than waxed nylon because they require fewer slip-enhancing coatings. However, Teflon-type coating itself is a Teflon-family coating, and floss made from expanded Teflon-type coating may contain legacy PFAS in manufacturing residue. Natural alternatives (silk floss, bamboo fiber) avoid synthetic polymers entirely but are less common and may cost more.
If you buy it
Use standard technique (gentle pressure, do not snap into gums) to avoid shredding and ingestion of fibers. Store in a cool, dry location; Teflon-type coating is chemically inert and does not degrade under normal bathroom humidity or temperature. Replace the spool once the floss becomes frayed or difficult to unwind, typically every 3-6 months with daily use. No special care is needed; rinse under tap water if debris accumulates on the spool exterior.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Teflon-type coating fiber ingestion (microplastic pathway)
Microscopic Teflon-type coating fibers may be swallowed during flossing if the fiber shreds. Ingested Teflon-type coating is considered biologically inert in the GI tract and is excreted unchanged, but long-term effects of chronic microplastic ingestion remain understudied.
Manufacturing residue contaminants (PFOA/PFOS legacy)
Expanded Teflon-type coating fibers are synthesized from Teflon-family coating precursors that historically used PFOA as a process aid. Although EPA phased out PFOA in 2013, residual contamination may persist in older production batches or non-compliant suppliers; Oral-B does not disclose testing limits.
Dental trauma from aggressive use
Glide floss itself is not inherently traumatic, but the strength of expanded Teflon-type coating (vs. nylon) may tempt aggressive insertion if user is not trained in proper technique. No brand-specific incidents reported.
Gum irritation or allergic sensitization
Teflon-type coating is chemically inert and not a known allergen in oral use. No published adverse event reports specific to Oral-B Glide Pro-Health in FDA databases or dermatologic literature.
Fluoride ion leaching from coatings
Expanded Teflon-type coating requires no fluoride-containing coatings and is not formulated to deliver topical fluoride. No leaching pathway identified for this product type.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Dental Floss
Cocofloss
Refill Trio
Coconut fiber, based floss with plant-based coating
Lower-concern dental product; natural materials and transparent PFAS stance, but no independent verification.
⚠Risky category by default
Dental Lace
Refillable Silk Dental Floss
Silk floss with compostable refillable packaging
Lower concern; silk floss with credible PFAS-free positioning and third-party certification.
✓Verified PFAS-free by a third party
Dental Lace
Plant Based/Vegan Floss Refillable Glass Container PFAS-Free (2 Spools/4-
Plant-based vegan floss (likely plant cellulose or silk fibers)
Lower-concern product with explicit PFAS-free claim; no third-party verification limits certainty.
⚠Risky category by default
More dental floss grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.