Dear aspirant,

The admission to bds varies to may criteria. First of all if you are considering AIQ then for the herbal rank the cut off goes around 509 marks.

Depending upon the particular state the bds cut off goes lower than AIQ and it varies sin each state depending upon the number if college and students applied.

ALSO for private bds college it's the lowest amongst the above. And if you have reservations then you have more chances. 

So please mention your state and category for furthur information. 

ALL THE BEST FOR YOUR COUNSELLING!