BDS

Please refer to the article in the link for in depth knowledge:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3895699/

Yes, the only thing is that you need to have the minimum marks required i.e. above 50% in 12th.

The opportunities are vast. You can pursue B.Tech or BE also or you can move towards research field by specializing in B.Sc, M.Sc and PhD.

From this year, no one can get private MBBS or BDS courses, because of Supreme Court's strict instructions.

If she belongs to a general category or OBC category, then it is impossible to get admission in MBBS or BDS. If she belongs from a reserved category, it is possible that she gets admission for BDS course. Or, if she belongs to reserve PH category, it may be possible that she get MBBS course.

482 is a very good score for MBBS as well as BDS. You may get government MBBS seat depending on your domicile state. But chances are less. You can get government BDS.

NEET - National Entrance cum Eligibility Test is the only gateway for admission into MBBS and BDS courses through out India. So, you can't get admission without NEET.