Maybe in your case, not a pencil pusher, but in your cases probably in a lab, recording data from your lab bench relating to your study, so your probably using a computer to type your data..... And you probably do have a nice income, but how much one to one time are you having with dental patients....
I am not scientific lab person, I am a person who likes to help other people, many people probably would not mind working In a lab and repeating Microbio, organic chemistry, and math related responsibilities day to day.....
I could not do that, but I am pro-dental, and getting a masters is really not pro-dental, a masters will not guarantee a position as an enrollee into dental school.....
So if you can be happy knowing that you will be working your LAB job for an extra year, then good....
But if an individual is not that type, and wants to be with the people, I mean, patients in the dental office, THEN, dental hygiene is the way to go!
It is flexible, good pay (20-60$ per hour range), mostly part time, and then have time to do a masters as well.... No biggie....
Congrats to your 70k bench job, with a computer.