Mary Jane Shroyer
The following website has a wealth of information on pre-requisites for dental school, application timelines, cost to apply, etc.
I would think a degree in stem studying something in the realm of biology, chemistry or something adjacent would be a great start in order to get into dental school. You will have to pass some type of board exam to get into dental school (either MCAT or GMAT) so those degrees would give you a great baseline of information you could then when prepping to take those exams. Doing some quick searches online I found some links that might help:
I would use these as they will be able to ask some of the specific questions you might have.