I'ma give you some advice based on my previous experience with admissions--you should re-take. Roseman was nice enough to tell you why they put your application on hold other schools won't make the time and will flat out reject you. First time I applied to dental schools I got 0 interviews and didn't even get into western's msms program (its super competitive though like 6 applicants a yr) cuz I had a 16 on my DAT score..I took the DAT again and did a bit better--got 5 interviews! Hopefully a school you applied to will look past that, but the reason they don't is because all student scores are open book so they have records for pre-dents to see lowest, highest, and average dat and gpa scores--and u know when someone say's "wow X school accepted a student with a 15 sooo easy to get into" that's where this comes in play not to mention your competing with other applicants without that dimple in their application--cross your fingers there might be a school(s) that will be okay with that! I know some schools have a 16 minimum and should be okay with it--there should be info about what each school's minimum is on their website.