Immediate Postextraction Screw-Retained Partial and Full-Arch Rehabilitation: A 3-Year Follow-up Retrospective Clinical Study

The aim of this study was to document the performance of a novel technique (OnlyOne), involving immediate restoration of postextraction implants supporting a partial or full-arch restoration. A retrospective analysis of patients with at least 3 years of follow-up was performed. Implants were tilted mesiodistally and vestibulopalatally according to the available bone. Prosthetically guided definitive abutments were connected at surgery and never disconnected. Anorganic bovine bone grafting was done to preserve the buccal bone and the ridge contour. Patients received a screw-retained provisional prosthesis within 24 hours of surgery and a final screw-retained prosthesis within 1 year. Prostheses emerged from natural soft tissue. Clinical and radiographic evaluation was routinely performed. A total of 70 patients received 153 implants in fresh extraction The mean follow-up was 38.0 +/- 3.0 months (range 36 to 51 months). One implant failed at the 3-year follow-up. Implant survival was 99.3%. Marginal bone level change averaged -0.68 +/- 1.2 mm at the last radiographic control. Immediate placement and restoration of implants designed for high primary stability with a definitive abutment placed at surgery and final screw-retained prosthesis with no artificial gingiva is a viable procedure with excellent medium-term outcomes.