New approach for immediate prosthetic rehabilitation of the edentulous mandible with three implants: a retrospective study

Abstract

This retrospective survival analysis shows that three implants can be used to support a fixed bridge for immediate loading in the edentulous mandible. The study indicated that oxidized implants were more successful than machined ones.

Stress analysis of different configurations of 3 implants to support a fixed prosthesis in an edentulous jaw

“…9 The use of 3 regular implants in this configuration has shown promising clinical results, with success rates above 96%. 8,9 However, data on the limitations and long-term complications of these rehabilitations are still insufficient. 8,9 Increasing the implant diameter and tilting the distal implants have been proposed to improve the biomechanical behavior by increasing the contact surface area and reducing the average cantilever length of the prosthesis.…”

“…8,9 However, data on the limitations and long-term complications of these rehabilitations are still insufficient. 8,9 Increasing the implant diameter and tilting the distal implants have been proposed to improve the biomechanical behavior by increasing the contact surface area and reducing the average cantilever length of the prosthesis. [5][6][7]11,12 However, it is unclear how the number, diameter, and arrangement of the implants impact the biomechanical behavior of fixed implant-supported complete dentures.…”

“…However, this rehabilitation did not achieve similar results compared to conventional implant-support rehabilitations with immediate loading. 3,8,10 Consequently, this therapy is not often prescribed. The unfavorable results were attributed to the angulation of the implants during the surgical procedure and the difficulty in obtaining a passive fit with the prefabricated metallic frameworks.…”

“…1,2 Changes in the original protocol have been proposed to simplify and optimize the rehabilitation of edentulous patients, increasing access to treatment. [3][4][5][6][7][8][9] Branemark et al 3 initially proposed the use of 3 wide implants to support a fixed implant-supported prosthesis in the edentulous mandible, obtaining a success rate of 98% over 3 years of follow-up. However, this rehabilitation did not achieve similar results compared to conventional implant-support rehabilitations with immediate loading.…”

“…The unfavorable results were attributed to the angulation of the implants during the surgical procedure and the difficulty in obtaining a passive fit with the prefabricated metallic frameworks. 8,9 Based on the Novum protocol, Branemark 3 …”