When should we start sending in supplemental applications? When AADSAS actually mails them the application or right now? Same question about processing fees for school.
Each dental school has its own deadlines and timelines. The ADEA used to have a link up for a document which detailed all of them and listed when specific items, such as fees and secondary applications, should be submitted and when. The link is no longer working. Of course you can contact each school individually, either via the phone or their website, and see if you can obtain such information. Or you can cough up the $35 and purchase a copy of the ADEA's guide to dental schools which should contain such information. Here is a link to the ADEA which states that the new edition will be out June 15th, although if you can get ahold of last year's copy you should be alright as I doubt much information has changed since then.