Crashed my bike, front 2 teeth came off the socket

Long story short 2 years ago (when I was 14) I crashed by ebike really bad and my 2 front teeth came off the socket, luckily I had braces and it kept the teeth from conpletely falling out, I basically just shoved it back in and went to the dentist the next day and they ”fixed it”, fast forward I recently got a xray scan and my roots shrink half its size??? I am getting my braces off in 2 days and I am scared my teeth will come right out. I asked a bunch of dentist who are willing to help me but they don’t feel comfortable helping me because I am 16 years old… Can anyone please help me or recommend me to a dentist who is willing to work on someone my age, Thanks everyone!