If you have the phone number of your customer (or patient, client, etc.) here's a really simple idea:
When they leave your office or store after completing some service (or having purchased from you), have someone give them a call the next day. Your purpose for calling is to simply find out if they're happy with the service (or product) and to see if they have any questions or concerns.
VERY FEW businesses do this kind of thing and this demonstration of care from your end will be appreciated by the vast majority of those you call. If you get their answering machine, simply leave a message along those lines:
"Hi. This is Alice from the dental office and I'm calling to see how things are going. If you have any questions or concerns about your service yesterday, please give us a call."
Try this for awhile and see what kind of feedback you get.
