Ioanna Bouchlariotou, Jean-Pierre Bernard, Jean-Pierre Carrel and Lydia Vazquez.
Long-term stability of osseointegrated implants in bone regenerated with a collagen membrane in combination with a deproteinized bovine bone graft. POSEIDO. 2013;1(1):45-53.

Background and objectives

The use of preimplant bone graft is often needed for an adequate implant placement. This clinical study evaluated the 5-year stability of 20 implants placed in bone that had been previously regenerated with a deproteinized bovine bone graft and a collagen membrane.

Materials and Methods

Clinical and radiological data were collected one and 5 years after implant placement.

Results

All implants remained stable throughout the study period with a mean Periotest value of -2.65. X-ray examination showed stable bone crest levels without angular defects and a mean bone loss between the 1st and the 5th year examination of 0.287 mm.

Discussion and Conclusion

The 20 implants were successfully integrated and were maintained in function over a 5-year follow-up period. Based on the clinical and radiological favourable results, we conclude that regenerated bone, formed under a collagen barrier membrane combined with a deproteinized bovine bone graft, responds like pristine bone to implant placement.