Hi,

With a score of 200, you are obviously qualified but you shall not get a seat in government colleges. There Used to be  separate exam for bds bhms  seats but now Neet ug is the entrance exam conducted for admissions to mbbs and BDS/BAMS/BHMS seats in various medical college of India.

It also depends on college you targeting like government or private... Through STATE QUOTA 85%  Or ALL INDIA QUOTA 15 %.,But going by previous years trend for government college in obc category 450-550 will be a safer score.. If you target private it will around 400-500

Yes to get into any college across India whether,  private or government using either state of all India quota the 50th percentile should suffice for you

But if you want one of the better colleges at the government sector in your state then I think you need to lift your scoring above 380
You want to avail one of the best BDS colleges in India at the government sector using your all India rank usually you should be trying to score near 400
You might just clash with some of the not so well reputed medical colleges with this rank as well,

BDS - 450+ for government Colleges and 400+ for Private Colleges

Thanks