{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T21:35:35Z","timestamp":1792791335944,"version":"4.5.0"},"reference-count":30,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2018,5,17]],"date-time":"2018-05-17T00:00:00Z","timestamp":1526515200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004921","name":"Shanghai Jiao Tong University","doi-asserted-by":"publisher","award":["YG2016ZD01"],"award-info":[{"award-number":["YG2016ZD01"]}],"id":[{"id":"10.13039\/501100004921","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clinical Oral Implants Res"],"published-print":{"date-parts":[[2018,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>The purpose of this retrospective study was to evaluate the long\u2010term changes in the thickness of Schneiderian membranes after zygomatic implant placement using cone beam computed tomography (CBCT).<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and methods<\/jats:title><jats:p>Twenty\u2010five consecutive patients were included in this study. All the patients underwent bilateral zygomatic implant placement. Schneiderian membrane thickness (SMT) in 49 maxillary sinuses (one sinus was not included because of early loss of the zygomatic implants) was measured using CBCT before and at least 1\u00a0year after zygomatic implant placement. Ostium patency of each sinus was also evaluated and recorded.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In total, 84 zygomatic implants and 30 regular implants were placed in included patients. Two unilateral maxillary zygomatic implants in one patient were removed 2\u00a0months after implant placement. The SMT increased from 1.03\u00a0mm (inter\u2010quartile range: 1.57\u00a0mm) to 1.33\u00a0mm (inter\u2010quartile range: 1.98\u00a0mm) after a median follow\u2010up time of 23.00\u00a0months (inter\u2010quartile range: 14\u00a0months), and the difference was statistically significant. Before zygomatic implant insertion, 24.5% (12\/49) of sinuses had SMT greater than 2\u00a0mm, whereas this value was 28.6% (14\/49) after zygomatic implant placement. The percentage of sinuses observed with ostium patency also increased from 2.0% (1\/49) to 12.2% (6\/49).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Chronic Schneiderian membrane thickening could result from zygomatic implant insertion. Intensive postoperative care and clinical and radiographic monitoring are recommended after zygomatic implant placement.<\/jats:p><\/jats:sec>","DOI":"10.1111\/clr.13259","type":"journal-article","created":{"date-parts":[[2018,5,18]],"date-time":"2018-05-18T05:41:42Z","timestamp":1526622102000},"page":"679-687","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Long\u2010term Schneiderian membrane thickness changes following zygomatic implant placement: A retrospective radiographic analysis using cone beam computed tomography"],"prefix":"10.1111","volume":"29","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8857-2921","authenticated-orcid":false,"given":"Kai","family":"Zhao","sequence":"first","affiliation":[{"name":"Second Dental Clinic, Department of Oral Implantology, Shanghai Key Laboratory of Stomatology, Ninth People\u2019s Hospital Shanghai Jiao Tong University, School of Medicine, National Clinical Research Center of Stomatology Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Meifei","family":"Lian","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics Shanghai Ninth People\u2019s Hospital Affiliated with Shanghai Jiao Tong University School of Medicine Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0231-7151","authenticated-orcid":false,"given":"Shengchi","family":"Fan","sequence":"additional","affiliation":[{"name":"Second Dental Clinic, Department of Oral Implantology, Shanghai Key Laboratory of Stomatology, Ninth People\u2019s Hospital Shanghai Jiao Tong University, School of Medicine, National Clinical Research Center of Stomatology Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Oral Implantology, Shanghai Key Laboratory of Stomatology Shanghai Ninth People\u2019s Hospital Affiliated with Shanghai Jiao Tong University School of Medicine Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Feng","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Oral Implantology, Shanghai Key Laboratory of Stomatology Shanghai Ninth People\u2019s Hospital Affiliated with Shanghai Jiao Tong University School of Medicine Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yiqun","family":"Wu","sequence":"additional","affiliation":[{"name":"Second Dental Clinic, Department of Oral Implantology, Shanghai Key Laboratory of Stomatology, Ninth People\u2019s Hospital Shanghai Jiao Tong University, School of Medicine, National Clinical Research Center of Stomatology Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2018,5,17]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijom.2016.01.004"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/cid.12047"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/prd.12038"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/cid.12007"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0757.2008.00259.x"},{"key":"e_1_2_8_7_1","first-page":"335","article-title":"A retrospective analysis of 110 zygomatic implants in a single\u2010stage immediate loading protocol","volume":"24","author":"Balshi S. 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