The dental insurance plans available in the US are basically a scam for adults because they have an annual maximum of $1-2k. You have to get a lot of cleanings before you even break even with the premium, and if something major happens you’re basically not even covered.
IMO you may as well just have that $1-2k saved up yourself and pay for your own dental appointments.
I’ve done the same math recently and decided it would be cheaper just to pay myself and keep a bit of savings around for anything extra. I could not find a plan that would pay out more than $2k in a year, and that’s not even a month of rent some places.