{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T14:34:22Z","timestamp":1788532462507,"version":"build-2803163510"},"reference-count":37,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2012,11,21]],"date-time":"2012-11-21T00:00:00Z","timestamp":1353456000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clinical Oral Implants Res"],"published-print":{"date-parts":[[2014,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>Simultaneous implant placement in conjunction with lateral or transcrestal maxillary sinus floor augmentation gives the benefit of reduction in healing times and surgical interventions. Primary implant stability, however, may be significantly reduced in resorbed residual ridges. Aim of the present study was to investigate the impact of residual bone height, bone density, and implant diameter on primary stability of implants in the atrophic sinus floor.<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and methods<\/jats:title><jats:p>A total of 66 NobelActive<jats:sup>\u2122<\/jats:sup> implants were inserted in the sinus floor of fresh human cadaver maxillae: 22 narrow (3.5\u00a0mm), 22 regular (4.3\u00a0mm), and 22 wide (5.0\u00a0mm) diameter implants in residual ridges of 2\u20136\u00a0mm height. Presurgical computed tomographic scans were acquired to assess bone height and density. Primary implant stability was evaluated by insertion torque values (<jats:styled-content style=\"fixed-case\">ITV<\/jats:styled-content>), Periotest values (<jats:styled-content style=\"fixed-case\">PTV<\/jats:styled-content>), and Osstell implant stability quotients (<jats:styled-content style=\"fixed-case\">ISQ<\/jats:styled-content>).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Correlations within outcomes (<jats:styled-content style=\"fixed-case\">ITV<\/jats:styled-content>,<jats:styled-content style=\"fixed-case\"> PTV<\/jats:styled-content>,<jats:styled-content style=\"fixed-case\"> ISQ<\/jats:styled-content>) were highly significant (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.001). Radiographic bone density was found to significantly impact all three outcome measures (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.001), while no influence of residual bone height and implant diameter could be revealed by multifactorial analysis. Consistent results were seen in all subgroups (including residual ridges of 5\u20136\u00a0mm height).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Bone density seems to represent the major determinant of primary stability in maxillary sinus augmentation with simultaneous implant placement (as well as 5\u20136\u00a0mm short implants in the maxillary sinus floor). Preoperative bone density assessment may help to avoid stability\u2010related complications in one\u2010stage implant treatment of the atrophic posterior maxilla.<\/jats:p><\/jats:sec>","DOI":"10.1111\/clr.12071","type":"journal-article","created":{"date-parts":[[2012,11,21]],"date-time":"2012-11-21T09:37:25Z","timestamp":1353490645000},"source":"Crossref","is-referenced-by-count":43,"title":["Primary implant stability in the atrophic sinus floor of human cadaver maxillae: impact of residual ridge height, bone density, and implant diameter"],"prefix":"10.1111","volume":"25","author":[{"given":"Bernhard","family":"Pommer","sequence":"first","affiliation":[{"name":"Department of Oral Surgery Bernhard Gottlieb School of Dentistry, Vienna Medical University Vienna Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Markus","family":"Hof","sequence":"additional","affiliation":[{"name":"Department of Oral Surgery Bernhard Gottlieb School of Dentistry, Vienna Medical 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