Abstract: Disclosed herein is a dental tool sterilizer, which sterilizes a dental tool to keep the dental tool sanitary and allows a dental tool that has been sterilized or is to be sterilized to be conveniently and easily put into and taken out of the sterilizer. The sterilizer includes a support body having a turntable on an upper portion thereof, a power button being provided at a predetermined position on the support body to control supply of power. A dental-tool protective casing is provided such that an open bottom thereof is placed on the upper portion of the support body, and has a door on a side thereof. A sterilizing means is provided in the casing and has an ultraviolet lamp that radiates ultraviolet rays. A dental-tool holding means is provided on the turntable in such a way as to rotate along with the turntable, and holds dental tools.

Abstract: An electric door lock device is provided, including a user identification (ID) device provided on a manipulation body installed on the outside of a door and configured to input user's unique ID information; an operation body connected to the manipulation body and including a locking rod driver driving a locking rod for opening/closing the door to be in an unlocked/locked state; and a controller controlling the locking rod driver to drive the locking rod to a retracted position when user's unique ID information input through the user identification device is identical with user information registered in a memory device, transmitting access information of the user to an administrator's wireless communication terminal registered through a communication device, and storing the access information in the memory device. According to the electric door lock device, access information of a person who entered/exited can be notified to the administrator's wireless communication terminal.