Yes, we do have your information on file. However, if there are any changes with your medical health from one appointment to the next that we don’t know about, it could greatly affect our treatment for that day. Some examples of how medical changes affect you and us: certain drugs could react with local anesthetics, nursing would change the type of anesthetic we use, if someone is taking birth control and we need to prescribe antibiotics it will nullify the effects of the birth control and it’s our job to inform you. Having you review the medical history each time is a good reminder for you in case you forget to mention a new change to us.