{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T17:30:43Z","timestamp":1784827843882,"version":"3.55.0"},"reference-count":43,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2023,2,23]],"date-time":"2023-02-23T00:00:00Z","timestamp":1677110400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["aap.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Periodontology"],"published-print":{"date-parts":[[2023,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Lateral\u2010window sinus floor elevation (LSFE) is a reliable procedure to reconstruct the posterior maxilla for implant therapy. This retrospective study aimed to investigate risk factors associated with Schneiderian membrane perforation (SMP) occurrence during LSFE and longitudinal regenerative outcomes following LSFE up to 9 years.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Patients who had LSFE between 2010 and 2019 were included. All demographic and surgical\u2010related data were retrieved from existing electronic health records. Radiographs were used to evaluate the vertical dimensional changes of ridge and graft materials and the potential anatomic factors of SMP.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 122 LSFE procedures in 99 patients were included in the study. Mean ridge height gain and graft shrinkages were 9.5\u00a0\u00b1\u00a03.47 and 1.57\u00a0\u00b1\u00a02.85\u00a0mm. The influence of the healing period on graft shrinkage showed a positive trend; the longer the healing period, the greater the graft shrinkage (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.09). The pathology in the sinus showed a positive correlation with SMP (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.07). However, other anatomical factors did not negatively impact SMP and subsequent ridge height gain (<jats:italic>p<\/jats:italic>\u00a0&gt;\u00a00.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>With inherent limitation, the findings with up to 9 years of follow\u2010up indicate a consistent ridge remodeling lasting for about 3 years after LSFE procedures. SMP or membrane thickening may not significantly affect the ridge gain following LSFE. The healing period had the most significant influence on graft shrinkage, showing that the longer the healing time between LSFE and implant placement, the greater the graft shrinkage.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jper.22-0424","type":"journal-article","created":{"date-parts":[[2023,2,7]],"date-time":"2023-02-07T03:39:52Z","timestamp":1675741192000},"page":"1045-1054","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Risk factors and longitudinal regenerative outcomes of sinus membrane perforation during lateral window sinus floor elevation: A retrospective analysis up to 9 years"],"prefix":"10.1002","volume":"94","author":[{"given":"Saumya","family":"Prajapati","sequence":"first","affiliation":[{"name":"Private practice  Seattle Washington USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shale","family":"Ninneman","sequence":"additional","affiliation":[{"name":"Department of Periodontics University of Washington School of Dentistry  Seattle Washington USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ida","family":"Zarrabi","sequence":"additional","affiliation":[{"name":"Private practice  Seattle Washington USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7307-4102","authenticated-orcid":false,"given":"Diane","family":"Daubert","sequence":"additional","affiliation":[{"name":"Department of Periodontics University of Washington School of Dentistry  Seattle Washington USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"I\u2010Chung","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Periodontics University of Washington School of Dentistry  Seattle Washington 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