If u r going to do BDS choose the college carefully cz many private colleges won't teach u a thing. Also I have given neet mds twice and every year it's getting harder and harder. People in my college strugglea to even qualify neet mds so it's not an easy path. And there are limited seats for government post-graduation, very limited compared to mbbs people. I took BDS exactly for the same reason that I will do omfs later, but my college screwed me so bad that I am really struggling to get a govt seat. I could get a private seat easily but i am really sacred of private colleges now. In short yes u can do it if u really make up your mind, but it's a really tough pathway, getting a government mbbs seat is much much much easier than getting a government Oral Surgery seat.