2017 AADSAS Guide:
"Applicants can make updates to the coursework section for newly completed or planned courses using a system called Academic Update. After the application is verified, an applicant can log into the ADEA AADSAS application and update coursework. Verification of this new coursework will begin in November.
FAQ
Am I required to use Academic Update? ADEA AADSAS recommends, but does not require, applicants with updated grades to participate in Academic Update. However, the dental schools you apply to may require it. Please check with them directly to determine whether or not you are required to use Academic Update. If you fail to enter your updated courses, your designated programs may not consider your application or may revoke a previous offer of admission."
Edit: so it depends on the school. I have received emails from schools I have interviewed at asking for academic updates. I would contact the schools you are applying to.