GDA Wins Award for Membership Growth Dec 10, 2019 news homepage headlines {{Title}} [x] <strong>Comma separated</strong>, type <strong>existing</strong> tags Add or, Select from existing Opening existing... Close existing Most popular tags Click to select: Show all1609Tags Show only most popular Opening all... {{Title}} ({{ItemsCount}}) The ADA nationally recognized GDA for having the greatest net gain in membership and converting the highest number of diverse dentists to membership.