Pick the segment with the clearest next appointment
Dental databases usually contain several recoverable groups: overdue hygiene, unscheduled treatment, inactive 12+ month patients, missed or canceled appointments, and cosmetic consult interest. The first sprint should not try to work all of them at once.
We look for the segment with a clean reason to follow up and a clear booking path. Overdue hygiene is often simple to schedule. Unscheduled treatment may be higher value but needs more careful language. The sprint starts where the opportunity and operational fit are strongest.