Abstract: Systems, methods, and apparatuses for identifier matching and management are described herein. In various embodiments, the system includes a distributed architecture for receiving and matching public and secure identifiers associated with a particular consumer. In particular embodiments, the system uses the matched public and secure identifiers to transmit one or more messages to the particular consumer.

Abstract: Systems, methods, and apparatuses for identifier matching and management are described herein. In various embodiments, the system includes a distributed architecture for receiving and matching public and secure identifiers associated with a particular consumer. In particular embodiments, the system uses the matched public and secure identifiers to transmit one or more messages to the particular consumer.

Abstract: An endodontic file is provided for use during root canal therapy. The endodontic file has a handle, a blade, and a marker. The marker provides a working length adjustment scale that is integrated with the handle and the blade. After adjustment of the endodontic file to a desired working length, compared to the depth of a subject root canal, the marker is maintained in a substantially static position relative to the blade, which is itself stationary relative to the handle. The endodontic file reduces the chances of unintended complications during root canal therapy, for example if the blade were to penetrate into various tissues located in proximity to the root canal.