To be honest, I actually really liked your poem. I like the fact that there is nothing to get. Your choice in words is great - overall, I loved it.
Dentist? Not in my opinion. That's just too... literal? If it's inspired by a dream - then I don't think that it can specifically be about a profession etc. A dream tends to be abstract in itself, so it can be said that it reflects back onto the poem.
Good job!
