I was in your situation 8 years ago. I decided to furlough my entrepreneurial endeavors and learn to code so I could get a high paying job with benefits and afford to get my teeth fixed. I went to a state school, hustled my way into the game industry and later the startup world, and have gotten +$40k in dental work done over the last 4 years.
It's not always easy, but if you're smart and work hard, it gets better. If I could have given myself advice back then, I would've told myself not to be afraid of medical loans or dental schools. I've had ~22k in work done at a really nice dental school in SF that would have cost +50k at private practice. The sooner you get in there, the less it will cost in the long run (trust me).
Also, regardless of the current state of your teeth, every day is still a battle for your oral health. Brush after meals and floss regularly. Email me (link in profile) and I'll hook you up with a Sonicare toothbrush.