Immediate loading: analysis by means of resonance frequency

Objective: this study analyzed the clinical behavior of the implants, submitted to a immediate loading with fixed prosthesis implantsupported without a metallic infrastructure. Methods: During twenty-four months, ten patients received five implants in the mandible between the mentonian foramens, with a total of 50 implants. Each patient also received a fixed prosthesis of 12 elements without a metallic structure and a superior total prosthesis. During this period it was evaluated the clinical behavior of the prosthesis, as to the resistance to fracture of the acrylic resin, the unscrewing and fracture of the retention screws of the prosthesis in the masticating function and also a resonance frequency analysis by means of Osstell. Results: the descriptive analysis presented an initial stability of 71.76 ISQ(Implant Stability Quotient). The secondary stability, after 6 months, was of 69,30 ISQ; 12 months, was of 68.04 ISQ; after 24 months, was of 69.48 ISQ, indicating that the implants were stable after 24 months of function. There were no losses of implants during this period. Conclusions: the results were favorable to the evaluated items, the initial and secondary stability remained in normal values, and there were no fractures of the prosthesis, no loosening or fractures of the retention screws, there were no losses of the fifty implants installed, during the period of study of 24 months, showing a viable use of this technique.