Your Overall Percentile is: 50.38 - 50.38

Your Predicted Rank is: 696814 - 771964

with this score there is very less chance to get admission in college. As you didn't mention the caste you belong, it's quite difficult to predict the chances.

Moreover, Cut offs change every year depending on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, top NEET score and difficulty of the exam. This year all India quota the cutoffs may be higher than the other years, that is why any score less than 590 or 600 out of 720 is less.For Dental also , you have to get at least 550 marks in Neet if you are a general category student.

You can check our college predictor link mentioned below-
https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer

For more information you can go through the article on  previous year's cut off-

https://medicine.careers360.com/articles/neet-cutoff-up

Hope you will be benifited

But,in my opinion,you should drop this year and can take an attempt in next year. You can surely achieve it with your immense hard work and dedication.

Thank you