Hey, 

You won't get a free seat in any college be it medical or dental.

You have fair chances of getting seats in BDS colleges because the cut off is just 50th percentile of total for general category and 40th percentile for reserved categories. So your chances are fair enough . If not a good government college, you can manage a place in any good private college as well. You can also check the previous years cut off . 

If you belong to any of the reserved categories, your chances of getting into a bds college is a little higher. But hope for the best and wait for the counseling.

All the best.