The process of managing tools and materials at the dental clinic in the area of the public health center of Maros Regency, South Sulawesi, has not been by system and is still manual, so it does not ensure the availability of data and information quickly, accurately, up-to-date, continuously, and can be accounted for. The Information System for the Needs of Tools and Service Materials (SIMAYA) is an information system that can overcome problems and improve the quality of management of tools and materials at the Dental Clinic of the Public Health Center. The purpose of this research is to produce a web- based information system for dental and oral health service equipment and materials (SIMAYA) that is feasible and effective for improving service quality and user satisfaction at the Dental Clinic of the Public Health Center. This study uses research and development (R&D) methodology, a model trial using a pre-experimental design methodology. The expert validation test of SIMAYA obtained an average feasibility score of 95% which means that it is feasible as an information system for the needs of tools and materials The results of the effect size test on the aspects of information system quality (d=10.79), tool and material management (d=13.60) and user satisfaction (d=7.27) in the strong effect category means that the web- based SIMAYA model at the Dental Clinic is very effective in improving the quality of service for the needs of tools and materials at the Dental Clinic.