Abstract: Objective: To evaluate the effects of IMS(Instrument Management System) on the infection manage-ment of the department of dental implant prosthodontics. Methods: Selected 300 patients who were admit-ted to the dental rehabilitation department from January 2017 to December 2017, and then randomly di-vided into experimental group (P): IMS device + four hand operation, control group (D): Routine dispos-able treatment disc+four hands operation. Before and after treatment, the number of bacteria in the air, medical devices and staff gloves in the examination room was detected and the probability of the puncture was recorded. Results: The rate of bacterial detection and needle stab in the experimental group was sig-nificantly lower than that in the control group(P<0.05). Conclusion: The IMS device management system can effectively reduce the risk factors of the infection of the dental restorer, prevent and reduce the inci-dence of needle puncture.

Key words: IMS, hospital infection, oral cavity, prosthodontics, needle puncture