I just had a root canal and the dentist didn't say anything about vaping. I waited exactly one min, that was the walk from the office to the car. I am now regretting that. Other then regular antibiotics and OTC pain meds. I am on Vicodin for extreme pain. Steroid for loose tooth and nerve pain. My guns feel like they're on fire and I have numbness from some swelling.
This didn't happen right after the procedure. It happen the next day when I was chain vaping at a friends house.
Learn from my mistake and play it safe if you have a major procedure done. I was ok with a hit here and there, but chain vaping is what did me in I believe.
If you wussed out and got an expensive root canal

you have nothing to worry about, its only the hole left after a tooth is pulled, it can heal as a divet instead of flat, then you get the dry socket. But I think you have to be sucking frozen milkshakes thru a straw for it to happped. Just adjust your tank to wide open for air and there's little to worry about. Dentists have to say stuff like that to cover themselves.
That Navy Job sounds like what I'm in for, had a huge filling fall out on a back molar, that tooth needs out and I hate that spring loaded nut cracker they use to shatter a tooth to scrape it out. Just a matter of time before I'm begging to get into the dentist but I just keep putting it off!