here is my personal opinion, no offense to those doing research while in dental school.
For me, personally, research requires alot of time and dedication, which I dont think is possible to do while being in dental school. Summer programs are way too short to really get into a decent project.
Undergrad research is better because there is more time but the draw back is the lack of basic science as the college career goes along compared to post Bachelor research.
anyhow, I just think that it is silly that dental students do research because it will boost their resume for post doc programs. I mean, if I were on an admission committee for post - doc programs, I would not value this so much, since I think that great research and dedication is usually for those in the PhD track, and I prefer a student who is willing to do research post-doc for a year before starting their specialty residency if they really do love research.
I just dont like the BS of pretending to do research just to boost one's resume when there is really no passion in it, compared to the PhD students.
Just my two cents.