{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,6]],"date-time":"2026-01-06T13:10:22Z","timestamp":1767705022001},"reference-count":42,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2015,4,14]],"date-time":"2015-04-14T00:00:00Z","timestamp":1428969600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clin Implant Dent Rel Res"],"published-print":{"date-parts":[[2016,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>When augmenting the maxillary sinus without grafting material, the method used to cover the bony window is a subject of debate.<\/jats:p><\/jats:sec><jats:sec><jats:title>Purpose<\/jats:title><jats:p>The purpose of this study was to evaluate the poly\u2010<jats:styled-content style=\"fixed-case\">L<\/jats:styled-content>\u2010lactic acid (<jats:styled-content style=\"fixed-case\">PLLA<\/jats:styled-content>) membrane as closing material of the lateral window in a maxillary sinus augmentation without bone grafting.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Augmentation of the maxillary sinus without grafting material and installation of titanium screws that fix the Schneiderian membrane were performed in 18 Japanese male white rabbits. The bony window was covered with a collagen membrane or <jats:styled-content style=\"fixed-case\">PLLA<\/jats:styled-content> membrane or no membrane. The animals were sacrificed at 4 or 8 weeks. New bone volume was calculated radiologically using microcomputed tomography (micro\u2010<jats:styled-content style=\"fixed-case\">CT<\/jats:styled-content>). The samples were analyzed histologically after toluidine blue staining.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>No significant differences were observed in the new bone volume, as measured by micro\u2010<jats:styled-content style=\"fixed-case\">CT<\/jats:styled-content>. However, histomorphometric analysis demonstrated the superiority of the <jats:styled-content style=\"fixed-case\">PLLA<\/jats:styled-content> membrane in new bone formation compared with the collagen membrane.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The <jats:styled-content style=\"fixed-case\">PLLA<\/jats:styled-content> membrane is a suitable material to be applied for tissue regeneration in this animal model.<\/jats:p><\/jats:sec>","DOI":"10.1111\/cid.12293","type":"journal-article","created":{"date-parts":[[2015,4,15]],"date-time":"2015-04-15T01:34:55Z","timestamp":1429061695000},"page":"261-269","source":"Crossref","is-referenced-by-count":4,"title":["Lateral Bone Window Closing Technique with Poly\u2010<scp>L<\/scp>\u2010Lactic Acid (<scp>PLLA<\/scp>) Membrane in the Augmentation of the Maxillary Sinus without Grafting Material: Evaluation of Bone Healing in a Rabbit 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Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takayuki","family":"Miyahara","sequence":"additional","affiliation":[{"name":"Oral Implantology and Regenerative Dental Medicine Department of Masticatory Function Rehabilitation Graduate School of Medical Dental Sciences Tokyo Medical and Dental University  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shohei","family":"Kasugai","sequence":"additional","affiliation":[{"name":"Oral Implantology and Regenerative Dental Medicine Department of Masticatory Function Rehabilitation Graduate School of Medical Dental Sciences Tokyo Medical and Dental University  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2015,4,14]]},"reference":[{"key":"e_1_2_7_2_1","first-page":"613","article-title":"Grafting of the maxillary sinus floor with autogenous marrow and bone","volume":"38","author":"Boyne 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