Impressive! It looks like your clinic is running well with your current processes and procedures. An autonomous patient-reminder system may not be necessary in your clinic's current state. Having a database that has a high percentage of older folks above the age of 50 may benefit more in customer satisfaction to receive phone call reminders and booking appointments!
If your mind is set on looking for a way to relieve these tasks from yourself or your front desk, your next best option that we would recommend is looking into U R DU Appointment Services that consists of seasoned dental professionals that call on your clinic's behalf to book unscheduled treatments, book recalls, give appointment reminders, you name it.