RFID applied in recognition and identification for dental prostheses

RFID has been broadly applied in different business practices. However, applications into human body may be involved in some difficult problems, such as safety resulted from invasive procedures, and privacy concerns. RFID implanted dental prostheses afford chances for relatively noninvasive procedures, and its fixed properties may bring some significant benefits. This article will discuss about RFID insertions over dental fixed prostheses. We also show the suggested processes, along with the locations for its insertion. Finally, we will discuss about the way to avoid privacy concern, as well as other applications in RFID inserted dental prostheses. High frequency (13.56 MHz) with sheet form RFID is selected to insert over bilateral lower first molar buccal area for the purpose of directly detections over outside cheeks in our experiment. This design also concerns about the esthetics and the occlusal loading forces, and further improvements for RFID inserted dental prostheses will be also discussed. Our results show that with the increasing area of the coil, the tag will enlarge the detecting length throughout the agarose, which contains about 90 % water to mimic the soft tissue. The detecting depths of the tag are more than 1 cm, which are larger than our cheeks (about 0.9 cm in thickness). We also show the suggested data to load into the tags, which includes the prostheses design date, the certificate number of the dentists, and the materials used to manufacture. These data can avoid from privacy problem, and also bring the benefits for medical appointments, as well as the identifications throughout the indirect procedures. Further researches to minimize the coil size and to fit the different dental prostheses are still needed for its practical applications.