Bigben wrote: Plastics are notorious for raising female hormones like estrogen. So one concern would be guys getting ED and other hormone related issues as the beads age and leach into the tissue and effect the endocrine system. It is unlikely it would have the same detrimental impact on women. This might take decades, but still it is worrisome.
If you had 3 sessions of 20 cc of 30%, that\'s 60 ccs of material, 20 ccs of which is
PMMA. That\'s 4 teaspoons of
PMMA...most of which won\'t degrade. I doubt it can cause endocrine issues. Anyway, most people haven\'t had this much. I think I had 12 total CCs of
PMMA...though I have to check. So, 2.5 teaspoons... most of which isn\'t going anywhere.
Also, with regard to breaking down - nothing I\'ve read about
PMMA / plexiglass (including the fact it\'s used in construction - like the roof of athletic stadiums) suggests it will degrade in our lifetimes. It\'s used as bone cement and in orthopedic surgery regularly, along with other plastics like polyethylene (that doesn\'t degrade or leech).
If you can find an academic article, please post it as I am sure many people would be interested to see it.
PMMA has been around since the 40s, so you should be able to find something relating to its use as bone cement, it\'s permanent. This formulation is new, of course... but why would this degrade any more than bone cement? Human WBCs cannot eat particles this large.
I just found that some microorganisms may be capable of degrading
PMMA and other plastics...used in construction.