hi,
as far as i know in the present era of highly compettitve world to get in to DDS, 77 is not adequate. This is my opinion and i think u can give the exam in july so that u will be in the competition again. and coming to minnosota exam, i think they acept you togive u their licentsing borad , if they think u r eligible. The eligibiity as far as i know is different from individual to individual and i think for some they asked to show one year pateint records of all the patients he treated. So i wil syggest you to got o minnesota board dentals site and there i think u can get a better information. I think this wil help you.
indiandentist