{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,8]],"date-time":"2026-06-08T18:45:05Z","timestamp":1780944305346,"version":"3.54.1"},"reference-count":50,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2011,9,12]],"date-time":"2011-09-12T00:00:00Z","timestamp":1315785600000},"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":[[2011,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:bold>Objectives: <\/jats:bold> To investigate the long\u2010term clinical and radiographic results of the maxillary sinus membrane elevation technique where implants were inserted in a void space created by the elevation of the sinus membrane without adding any graft material.<\/jats:p><jats:p><jats:bold>Materials and methods: <\/jats:bold> A total of 84 patients were subjected to 96 membrane elevation procedures and simultaneous placement of 239 implants. Changes of intra\u2010sinus and marginal bone height in relation to the implants were measured in intraoral radiographs taken at insertion, after 6 months of healing, after 6 months of loading and then annually. Computerized tomography was performed pre\u2010surgically and 6 months post\u2010surgically. Resonance Frequency Analyses measurements were performed at the time of implants placement, at abutment connection and after 6 months of loading. The implant follow\u2010up period ranged from a minimum of one to a maximum of 6 years after implants loading.<\/jats:p><jats:p><jats:bold>Results: <\/jats:bold> All implants were stable after 6 months of healing. A total of three implants were lost during the follow\u2010up period giving a survival rate of 98.7%. Radiography demonstrated on average 5.3\u00b12.1\u2003mm of intra\u2010sinus new bone formation after 6 months of healing. RFA measurements showed adequate primary stability (implant stability quotient 67.4\u00b16.1) and small changes over time.<\/jats:p><jats:p><jats:bold>Conclusion: <\/jats:bold> Maxillary sinus membrane elevation and simultaneous placement of implants without the use of bone grafts or bone substitutes result in predictable bone formation with a high implant survival rate of 98.7% during a follow\u2010up period of up to 6 years. The intra\u2010sinus bone formation remained stable in the long\u2010term follow\u2010up. It is suggested that the secluded compartment allowed for bone formation according to the principle of guided tissue regeneration. The high implant survival rate of 98.7% indicated that the implants sufficiently supported the fixed bridges throughout the study period. This technique reduces the risks for morbidity related to harvesting of bone grafts and eliminates the costs of grafting materials.<\/jats:p><jats:p><jats:bold>To cite this article:<\/jats:bold>\n          \u2028Cricchio G, Sennerby L, Lundgren S. Sinus bone formation and implant survival after sinus membrane elevation and implant placement: a 1\u2010 to 6\u2010year follow\u2010up study.\u2028<jats:italic>Clin. Oral Impl. Res<\/jats:italic>. <jats:bold>22<\/jats:bold>, 2011; 1200\u20131212.\u2028doi: 10.1111\/j.1600\u20100501.2010.02096.x<\/jats:p>","DOI":"10.1111\/j.1600-0501.2010.02096.x","type":"journal-article","created":{"date-parts":[[2011,9,12]],"date-time":"2011-09-12T12:53:45Z","timestamp":1315832025000},"page":"1200-1212","source":"Crossref","is-referenced-by-count":90,"title":["Sinus bone formation and implant survival after sinus membrane elevation and implant placement: a 1\u2010 to 6\u2010year follow\u2010up study"],"prefix":"10.1111","volume":"22","author":[{"given":"Giovanni","family":"Cricchio","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lars","family":"Sennerby","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefan","family":"Lundgren","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2011,9,12]]},"reference":[{"key":"e_1_2_5_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.joms.2005.10.031"},{"key":"e_1_2_5_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0501.2004.01028.x"},{"key":"e_1_2_5_4_1","first-page":"613","article-title":"Grafting of the maxillary sinus floor with autogenous marrow and bone","volume":"38","author":"Boyne P.J.","year":"1980","journal-title":"Journal of Oral Surgery"},{"key":"e_1_2_5_5_1","first-page":"219","article-title":"Localized management of 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