sailor
Full time employment: Posting here.
I have 313 mrem lifetime documented exposure to ionizing radiation from nuclear propulsion plants. (Note that's "documented", not actual, and for some reason we neglected to document the exposure to the nuclear warheads on POSIEDON ICBMs and TOMAHAWK missiles.) I don't remember the sievert conversion factor but dental x-rays used to be about 10 mrem.
Today's submarine nuclear plants are much cleaner. Hopefully the same advances have been made in dental x-rays.
I was curious once and looked up the one used at my dentist office.
At the setting they use it it's about 0.3 mrem per bitewing.
I typically get 6 of these once a year so 1.8 mrem.
313 mrem? That's less than some of CT-Scans or X-rays:
ANS / Public Information / Resources / Radiation Dose Chart