gutta perch ain't a fish and not something folks want down their root canals,not to mention steroids.. oh, and the future joy of possible cavitations, support your local dentist!. I wished I'd a known that about the vapors being all gone after 15 years,though, could a saved a whole heap a dosh, wonder where that meter was pickin it up from, prolly my dog.
No offense.
Oh, and my root canals stopped hurting too after a good long while, just made up for it with the abcesses though. Brief honeymoon...
Still, glad it works for you.