It’s not clear which part of the comment you meant when you said it’s not true, but PTFE is a PFAS, exactly how toxic it is or isn’t I don’t think is well known yet but people have been living with PTFE implants.
The toxicity of Glide. PFAS is a very broad class of chemicals. The toxic PFAS associated with PTFEs are PFOA and PFOS, both of which were phased out in production in the 2010s.
Whenever this topic of Glide being toxic comes up they cite this article :
Which is based off blood samples drawn in 2010-2013, which is at the time PFOA was being phased out of the PTFE production process due to lawsuits around the PFOA toxicity, which DuPont was aware of. The new process using GenX (seriously), which is known to cause problems too but at a lesser extreme than PFOA. However the issue with PTFE was with the residuals of PFOA which you don’t find in commercial PTFE for GenX.
And yes, PTFE is widely used in medical implants and devices.
Whenever this topic of Glide being toxic comes up they cite this article :
https://www.hsph.harvard.edu/news/hsph-in-the-news/dental-fl...
Which is written based off this study:
https://www.nature.com/articles/s41370-018-0109-y
Which is based off blood samples drawn in 2010-2013, which is at the time PFOA was being phased out of the PTFE production process due to lawsuits around the PFOA toxicity, which DuPont was aware of. The new process using GenX (seriously), which is known to cause problems too but at a lesser extreme than PFOA. However the issue with PTFE was with the residuals of PFOA which you don’t find in commercial PTFE for GenX.
And yes, PTFE is widely used in medical implants and devices.