Outside of a few dentists chiming in, I think I can offer some decent feedback.
First of all, I have an accounting practice and serve quite a few dentists as clients. Secondly, my best friend/younger brother went to dental school, hated it, dropped out, and is living a happy, successful life.
I would strongly urge you to go meet with local dentists (local to your dental school) and ask them how they like their job, how they like running a practice, what type of lifestyle it provides, and how many hours they work each week. Like any profession, you are probably going to get a wide range of replies. As a few of the above posters mentioned, being a dentist (practicing dentistry) is FAR different from dental school. I am friends with some of my clients and have some dentists that are friends but not clients. Most absolutely HATED dental school and most aren't all that passionate about being a dentist. They don't hate it, but they don't go to bed dreaming about the endo treatment plan on the schedule tomorrow.
Unfortunately our society has sold everyone on the "Do What You Love!" mantra. That isn't really based on facts or reality. MOST people don't love their jobs. MOST people have things about their job they don't like. There is nothing wrong with being a competent professional (regardless of field) and not being head over heals excited about work everyday. That might not be sexy advice, but it is reality.
You can find things about any profession that are enjoyable. Maybe it is the interaction with patients. Maybe the ability to improve employee's lives by offering them steady, well paying employment. Maybe it is the fact that you could only work 4 days a week (many dental practices still close on Friday). Or maybe you hate everything and work towards FIRE as fast as possible (many on these boards fit that description).
You are in a unique position. With 200K of loans, if you quit, you would have trouble finding employment to pay those things off while still being able to travel and one day FIRE. Unfortunately, PT doesn't pay that well compared to dentistry. It doesn't pay near as well as private practice dentistry (if you have any head for business).
With PT, I'm guessing that would be more loans as well. So you are probably looking at 300K minimum unless you quit and don't do any more schooling.
Back to my brother... He knew from about the 2nd week of the first semester of dental school that he didn't want to practice dentistry. Yes, school was stressful, but he finished the first year with the top marks in his entire class, so it wasn't as if he couldn't hack it. He is now finishing a PhD in finance and simultaneously runs a very successful online business. So he is somewhat of an anomaly. I'm not sure his path would be realistic for you (he only had around $18K in dental school debt when he left and is the most frugal person I've ever met in my life).
With $200K and growing, you unfortunately can't really do whatever you want. I guess you could drop out, move out of the country, and default on your loans. But if you want to stay in the US, you're probably going to need to create a plan to pay those off.
So to summarize, here would be my advice:
-Talk to actual dentists to get an idea of what the work life is like.
-Only you know if you truly hate dentistry and couldn't stand to do it a day in your life.
-PT pays much less than dentistry, and with your loan situation you have to consider pay at this point.
-Private practice dentistry can pay well more than the numbers you posted, but working for a chain or another dentist could pay even less.
-If you have no desire for owning a practice, I'm not sure dentistry would be all that much better of a choice than PT.
-If you want an above average lifestyle, you have to work in a profession with above average pay. Sounds pretty simple, but you can't have your cake and eat it too sometimes. With your loans plus desires to live the high life, you're probably going to have to do some "not fun" years in order to come out ok in the next decade.