{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T02:33:08Z","timestamp":1787020388551,"version":"build-2736575974"},"reference-count":40,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T00:00:00Z","timestamp":1771459200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2026,3,2]],"date-time":"2026-03-02T00:00:00Z","timestamp":1772409600000},"content-version":"vor","delay-in-days":11,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"name":"Misr International University"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Oral Health"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>To evaluate the osteogenic potential of the Schneiderian membrane following sinus floor elevation using bioabsorbable screws as space maintainers, without the use of graft material.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Fourteen patients with severely atrophic posterior maxilla were enrolled in the current study. All patients underwent maxillary sinus augmentation via a lateral window approach. Patients were randomly allocated into two groups. In the control group, the sinus cavity was filled with xenograft material. In the intervention group, the Schneiderian membrane was elevated and stabilized using bioabsorbable screws, with no graft material used to fill the space.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Cone beam computed tomography (CBCT) of all patients revealed radiographic bone height improvement in both groups, with the control group showing a greater mean increase. Histomorphometric analysis revealed a tendency toward higher new bone formation in the intervention group, though the difference did not reach statistical significance.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Bioabsorbable screws may serve as effective space maintainers for graftless sinus elevation, allowing for spontaneous bone regeneration beneath the Schneiderian membrane. While conventional grafting with xenograft remains predictable, the bioresorbable screws-supported graftless approach offers a promising alternative in sinus floor elevation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Trial registration<\/jats:title>\n                    <jats:p>This study protocol was retrospectively registered on the trial registry \u201cClinical trials.gov PRS\u201d. ClinicalTrials.gov ID is NCT06766292. Registered on January 5th, 2025.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s12903-026-07772-2","type":"journal-article","created":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T09:17:51Z","timestamp":1771492671000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Clinical, radiographic and histomorphometry evaluation of the osteogenic potential of Schneiderian membrane after graftless maxillary sinus augmentation: a randomized controlled clinical trial"],"prefix":"10.1186","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-0367-6573","authenticated-orcid":false,"given":"Mohamed","family":"ElSholkamy","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9185-0403","authenticated-orcid":false,"given":"Randa H.","family":"Mokhtar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5500-1658","authenticated-orcid":false,"given":"Tarek M.","family":"Eltayeb","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9294-9277","authenticated-orcid":false,"given":"Inas","family":"Helwa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9713-8510","authenticated-orcid":false,"given":"Rehab A.","family":"Soliman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,2,19]]},"reference":[{"issue":"5","key":"7772_CR1","doi-asserted-by":"publisher","first-page":"503","DOI":"10.1034\/j.1600-0501.2001.120511","volume":"12","author":"GM Raghoebar","year":"2001","unstructured":"Raghoebar GM, Schortinghuis J, Liem RSB, Ruben JL, Vissink A. 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Clin Oral Implants Res. 2026;37(1):87\u201397. https:\/\/doi.org\/10.1111\/clr.70055.","journal-title":"Clin Oral Implants Res"}],"container-title":["BMC Oral Health"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/article\/10.1186\/s12903-026-07772-2","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s12903-026-07772-2.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s12903-026-07772-2.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,2]],"date-time":"2026-03-02T13:34:29Z","timestamp":1772458469000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1186\/s12903-026-07772-2"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,2,19]]},"references-count":40,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2026,12]]}},"alternative-id":["7772"],"URL":"https:\/\/doi.org\/10.1186\/s12903-026-07772-2","relation":{},"ISSN":["1472-6831"],"issn-type":[{"value":"1472-6831","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,2,19]]},"assertion":[{"value":"26 September 2025","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"21 January 2026","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"19 February 2026","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"This study was conducted in accordance with the ethical principles outlined in the Declaration of Helsinki. This study protocol was approved by the research ethical committee at faculty of Dentistry, Suez Canal University with a given IRB number 672\/2023. Then, the research protocol was registered on clinicaltrials.gov with a given registration number NCT06766292. A written informed consent was signed by all participants after explaining to them all study\u2019s procedures.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"417"}}