Here is a doc from SDN that someone from Bootcamp wrote on "How to get into dental school". From pages 20-24, there is a tiny blurb about each school.
HowToGetIntoDentalSchoolGuide2.0.3
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Here's some information on the dental schools in the NY, NJ area.
Pre-Dental Day - School Specific Info
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Download PD • 127KB
Also, I personally went onto Facebook Bootcamp Admissions group pages and searched all posts for people who were in each school and would message current dental students and ask them questions about the schools.
The youtube channel Future DDS also has interviews with current dental students from every single dental school I think.
These are some ways to learn more about each dental school. You can also go to the school websites to learn more.