First, check the schools on your wishlist if they offer a predental postbac or master's program. There were eight "legacy" masters in oral biology or oral health, but a Google search shows a few other schools have set up one-year programs since. You can also check postbac programs to see if some of them have experience getting students into dental school as well as medical school.
The original programs include (I think)
Oral Health Sciences (OHS) students take courses through Boston University Henry M. Goldman School of Dental Medicine (BUGSDM) and Graduate Medical Sciences (GMS) at Boston University Chobanian & Avedisian School of Medicine. Through immersion in a rigorous graduate biomedical sciences masters...
www.bumc.bu.edu
sdm.rutgers.edu
catalog.tamu.edu
Pre Dental Program Features: • DAT exam preparation • Foundational science coursework • Dental clinical exposure (pending pandemic restrictions) • GPA enhancement
www.siumed.edu
Newer programs I wouldn't mind knowing more about
Ann Arbor, Mich., May 23, 2023 – The School of Dentistry is expanding the class size for its Masters of Science degree in Oral Health Sciences after the first two years of the new program proved to be a popular with applicants from across the country and internationally. The school has admitted...
news.dent.umich.edu
dental.washington.edu
NSU's Master of Dental Science is a one-year certificate program designed for students interested in applying to U.S. Dental Schools.
dental.nova.edu
This unique program caters to individuals interested in various scientific and research aspects of oral and craniofacial biology. Students in the program may be traditional bachelor’s graduates, dentists enrolled in clinical specialties, or individuals interested in enhancing their application...
dental.buffalo.edu
www.dental.upenn.edu
Completion of Post-Baccalaureate Pre-Dental Program guarantees a seat in next fall entering class at Creighton University School of Dentistry, with scholarship assistance.
www.creighton.edu