biostudies-literatureKotsu MARDEC Academy22https://www.ebi.ac.uk/biostudies/studies/S-EPMC8950152biostudies-literatureUnknown13(1)Osseointegration of implants installed in conjunction with sinus floor elevation might be affected by the presence of residual graft. The implant surface characteristics and the protection of the access window using a collagen membrane might influence the osseointegration. To evaluate these factors, sinus floor elevation was performed in patients using a natural bovine bone grafting material. The access windows were either covered with a collagen membrane made of porcine corium (Mb group) or left uncovered (No-Mb group) and, after six months, two mini-implants with either a moderate rough or turned surfaces were installed. After 3 months, biopsies containing the mini-implants were retrieved, processed histologically, and analyzed. Twenty patients, ten in each group, were included in the stJournal of functional biomaterialsOsseointegration at Implants Installed in Composite Bone: A Randomized Clinical Trial on Sinus Floor Elevation.PMC8950152NAFortich Mesa NPiattelli AApaza Alccayhuaman KAIezzi GKotsu MBotticelli DFerri MfalseOsseointegration at Implants Installed in Composite Bone: A Randomized Clinical Trial on Sinus Floor Elevation.Osseointegration of implants installed in conjunction with sinus floor elevation might be affected by the presence of residual graft. The implant surface characteristics and the protection of the access window using a collagen membrane might influence the osseointegration. To evaluate these factors, sinus floor elevation was performed in patients using a natural bovine bone grafting material. The access windows were either covered with a collagen membrane made of porcine corium (Mb group) or left uncovered (No-Mb group) and, after six months, two mini-implants with either a moderate rough or turned surfaces were installed. After 3 months, biopsies containing the mini-implants were retrieved, processed histologically, and analyzed. Twenty patients, ten in each group, were included in the st2022-01-01T00:00:00Z2022 Feb2025-04-19T22:38:49.516Z2025-04-19T22:38:49.516ZS-EPMC89501523532322210.3390/jfb13010022