thanks to all for responding. my teeth and gums are already compromised from a long term eating disorder, was hoping
vaping would not exacerbate those problems. sounds like it's all good, especially if I add more water.
I doubt
vaping will add anything. The problem with those of us with iffy teeth (which runs in my family... heh, grandpa was British, I could make a snarky remark about now?

)... apparently smoking kills bacteria to some degree or other. Makes sense. There are some startling chemicals in modern tobacco products. I smoked all those years and never knew they had hydrogen cyanide in them. That's what they used to use in the old "gas chamber" to execute criminals. Um... URK!
Underlying dental problems
apparently can emerge when you switch to vaping because you're not repeatedly knocking back the bacteria. It's not that vaping caused the problem, it's that smoking (dipping, chewing, whatever) was suppressing the problem. Masking it. That is, it was already there but you were slowing it down a great deal by repeatedly killing a big batch of the bugs.
Two of my "annoying" spots (one an old root canal) have decided to be real irritating lately. Meaning the problem was already there, just being tamped down. Now, I'm not hitting the bugs repeatedly with poison gases so they're, ahem, thriving?
Oh. Yay. Dentist visit. Those are always fun...