{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T17:34:05Z","timestamp":1772991245594,"version":"3.50.1"},"reference-count":28,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2014,4,16]],"date-time":"2014-04-16T00:00:00Z","timestamp":1397606400000},"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":[[2015,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Surgical techniques as sinus floor augmentation have made it possible to increase the bone volume of the posterior maxilla so that implant placement may be feasible. A large variety of bone grafting materials have been utilized for sinus floor augmentation. A good alternative is allograft. Fresh frozen bone is harvested from live or cadaveric donors and then immediately frozen and stored at \u221280\u00b0C. To date, studies about the effect of fresh frozen bone are scarce.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objective<\/jats:title><jats:p>Evaluation of new bone formation, following maxillary sinus grafting with autograft vs. fresh frozen allograft.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and methods<\/jats:title><jats:p>A split\u2010mouth edentulous design including 15 patients was used. Sinus floor augmentation was carried out using either autogenous bone harvested from the ramus area or fresh frozen bone from allogeneic femoral heads. The choice was determined randomly, using a randomized table. The grafted sinus was left to heal for 6\u00a0months. Biopsies were harvested from the lateral wall. The biopsies were used for bone histology and histomorphometric analysis. After collection of the biopsy, dental implants were placed. After a healing period of 6\u00a0months, the implants were loaded.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Implant survival, histology, and histomorphometry of sinuses grafted with autogenous or fresh frozen bone were similar. The new bone formation took place predominantly around and in\u2010between particles.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The findings of the present study support the use of fresh frozen bone allografts for sinus floor augmentation.<\/jats:p><\/jats:sec>","DOI":"10.1111\/clr.12404","type":"journal-article","created":{"date-parts":[[2014,4,16]],"date-time":"2014-04-16T10:36:41Z","timestamp":1397644601000},"page":"1080-1085","source":"Crossref","is-referenced-by-count":37,"title":["Maxillary sinus grafting with autograft vs. fresh frozen allograft: a split\u2010mouth histomorphometric study"],"prefix":"10.1111","volume":"26","author":[{"given":"Samuel P.","family":"Xavier","sequence":"first","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery and Periodontology School of Dentistry of Ribeir\u00e3o Preto University of S\u00e3o Paulo S\u00e3o Paulo 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