I'll go ahead and save you the call. AADSAS will not check and see if you submited your transcripts from every school you attended. Everything you put on your application is based on the honor system. You type in all your classes you have ever taken and submit transcripts from every school you've taken classes at (this is MANDATORY, not optional). All AADSAS will do is verify the information you give them and calculate your GPA which will then be sent to dental schools.
AADSAS won't check up on you. Dental schools may or may not check on you either since they go through thousands of applications. BUT, what if they decide to audit your application and coursework? If they found out that you deliberately withheld classwork on your application, they'll kick your butt to the curb, and you can pretty much kiss your dental career goodbye.
Every one else on this forum submitted all their transcripts despite their occasional bad grades. Other applicants even have sub 3.0 averages but you don't see them switching to a different school and hiding their past from dental schools. You're going to hear the same thing from any other poster on this forum and the same thing from dental schools as well. If you decide to call them, I hope you don't give them your name, because if you do and they find out that you applied to their program, they'll either go over your application with a fine toothed comb or just black list you all together.