So I had a scheduled interview earlier this month but a personal matter came up and I ended up being unable to go. Is there any possibility of asking for a rescheduled interview?
No one can answer this for you. Best thing to do is email them and explain the situation and the reason that made you cancel the interview and see what they say..
Hopefully that was not their last day interviewing..
MD here, I did the same thing. Some schools were willing to reschedule, others weren't so much. I would give it a try and call them (although I emailed them) since there isn't that much time left.
Dental/med schools look for any small reason to reject someone. I'm not saying what you did results in a rejection, but it most likely didn't help you.