Hi,
Here is the rank wise cutoff of top dental colleges -
1. Maulana Azad institute of dental sciences, new delhi - 12243
2. King George's medical university- 14893
3. Nair dental college and hospital, navi Mumbai  - 17754
4. Banaras hindu university - 16013
5. GDC, Bangalore - 17425
6. GDC, Kottayam - 18251
7. GDCH nagpur - 18354
8. Rajah muthiah dental college and hospital, tamil nadu - 19119 .
Hope it helps...