With a score of 490, your rank might be approximately between 51498-58114 . This is an expected rank range: https://medicine.careers360.com/articles/neet-result-marks-vs-rank . Now regarding the Colleges that you may have a shot at, you have a chance in:

• GURU NANAK INSTITUTE OF DENTAL SCIENCES
• HALDIA INSTITUTE OF DENTAL SCIENCES
• KUSUM DEVI SUNDERLAL DUGAR JAIN DENTAL COLLEGE

Having said that, this is based on 2019 data and cut offs change every year. 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. For a complete list of colleges that you may have a shot at, please use our College predictor: https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer

Well your score is good and the probability of getting a dental college is also good.

You can use the link to get a prediction of your rank in NEET

Use the link below to get a prediction of the colleges:

https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer