Located in Jiufu Development Zone, Songjiang District, Shanghai, and specializing in the research and development of cutting-edge medical equipment with an emphasis on comprehensive ultrasonic dental treatment and devices, PRME has become the giant in this field in China and holds several independent intellectual property rights. PRME is a high-tech, national enterprise engaged in research, manufacturing and sales of medical equipment with particular focus on R&D and utilization of the 42000Hz ultrasonic technology. PRMEâ??s innovative development of the high-performance, soft magnetic energy transducer has enabled ultrasonic canalis radicis dentis treatment to be realized for the first time in China. This is an important, technological breakthrough with pervasive, beneficial consequences for the worldâ??s dental profession and their patients. Furthermore, PRME has developed innovations in multiple items with regard to oral cavity.