Don’t many medications and medical devices contain microplastics either on purpose (fillers) or un-avoidable (plasticizers in IV tubing). Unless the FDA has an existing microplastics policy, it would be weird to inconsistently apply it.
Lots of dental stuff like Invisalign or even regular braces involve keeping plastic and adhesives in the mouth for long periods of time. I think even some gum (non-nicotine or otherwise) contain plastics technically.
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Don’t many medications and medical devices contain microplastics either on purpose (fillers) or un-avoidable (plasticizers in IV tubing). Unless the FDA has an existing microplastics policy, it would be weird to inconsistently apply it.
Lots of dental stuff like Invisalign or even regular braces involve keeping plastic and adhesives in the mouth for long periods of time. I think even some gum (non-nicotine or otherwise) contain plastics technically.