Hi, 

Taking last years closing scores into consideration it seems difficult to get a BDS seat.

Even with category last year for ST the closing score for 396 in Government Dental College and Hospital, Jaipur (RUHS) at 396.

So getting a government seat would be difficult. However you can try for private dental colleges. Chances can be high there. 

I shall attach link below which can be of help:

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

All the best