Wait what? Why does the supplemental link on AADSAS then say to submit the secondary fee of $75 at the same time as you submit your AADSAS application? Also, the Buffalo website reads...
A $75 application fee must be received by the School of Dental Medicine prior to the initial review of the application. The application fee is non-refundable and is not credited toward any charges when an accepted applicant registers as a student. We recommend electronic submission of the application fee, as it is the fastest and most efficient method. Electronic payment may be made via the UB ePay website; payments will be accepted for Fall 2013 beginning June 1, 2012.
Other than it clearly not being updated, it says they accept payments starting 6/1, which I doubt it changing makes any sort of difference year to year.