[quote=“Mama_Zappa, post:19, topic:659023”]
Ah - I didn’t realize that was the difference. Didn’t people sorta, yanno, suffocate on pure N2O???
Sure, but gererally they woud take a big hit from a container, not wear a mask for constant delivery like now.
IIRC some kids out west about 15 years ago swiped a cylinder of n2o from a dental office and opened it in the closed cab of the pickup. Three dead. No cite or guarantee of my memory.
25ish years ago, something similar happened in a restaurant near where we lived: it was an ice cream shop, where they used a lot of N2O for whipped cream.
Apparently it’s a bad idea to fill a trash bag with that and stick your head in it :(.
N2O is the propellent in Ready Whip. I’ve seen kids buying 10 cans of it at once. AFAIK they release it into a plastic bag and inhale from it. Yea, sticking your head in a plastic bag isn’t usually a good idea.
The worst thing about my dentist is he uses what feels like a hollow steel log for a needle. Two days after, I still feel the wounds left by the injections.
When I was a kid back in the 60’s and 70’s I got fillings in all my back molars. Never got novacaine for any dental work. Plus my dentist stood up to work, which, when I saw a different dentist when we were in the military, I was told was very old-fashioned. The first time I had any numbing during a procedure was when I had a tooth pulled by an oral surgeon.
I don’t recall any of those fillings being very painful at all, and they have lasted to the present day.