{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T20:24:01Z","timestamp":1790799841838,"version":"4.1.0"},"reference-count":22,"publisher":"Springer Science and Business Media LLC","issue":"5","license":[{"start":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T00:00:00Z","timestamp":1745366400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T00:00:00Z","timestamp":1745366400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Clin Oral Invest"],"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:sec>\n            <jats:title>Objectives<\/jats:title>\n            <jats:p>To preoperatively assess the probability of oroantral communication (OAC) following the removal of maxillary (pre)molars using panoramic radiographs (PAN) and to assess the OAC-rate.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Materials and Methods<\/jats:title>\n            <jats:p>During a 4,5-year period, patient characteristics of removals of maxillary (pre-)molars were recorded: \u2018sex\u2019, age, \u2018sidedness\u2019, \u2018type of tooth\u2019, \u2018reason for removal\u2019\u2019 and \u2018occurrence of OAC\u2019. On the PAN of OAC-cases and of 100 control cases, the \u2018Fraction of the Root Overlapping the Maxillary Sinus\u2019 (FROMS) was calculated. The OAC-rate was reported overall, per tooth type and for four diagnostic classes: A: no overlap, B: 0.1\u201325%, C: 25.1\u201350% and D\u2009&gt;\u200950% overlap. Univariate tests and regression analysis were performed to test the association between OAC-rate and \u2018FROMS\u2019, \u2018sex\u2019, age, \u2018sidedness\u2019, \u2018type of tooth\u2019, \u2018reason for removal\u2019.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>Of 2340 maxillary (pre-)molars removed, 112 resulted in OAC (OAC-rate of 4.8% (95%CI 3.9%-5.7%)) The FROMS diagnostic class was significantly associated with the OAC-rate (\u03c72\u2009=\u200942.90 df3, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.0001). For the four diagnostic classes the risk of OAC was (A) 1.0%, (B) 3.3%. (C) 10.1% and (D) 17.7%. The first molar showed highest OAC-rate with 7.0%. No association between OAC-rate and \u2018sex\u2019, age, \u2018sidedness\u2019, \u2018type of tooth\u2019, \u2018reason for removal\u2019 was found.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions<\/jats:title>\n            <jats:p>FROMS is a valid indicator of OAC probability. The overall OAC-rate was 4.8% and was highest in first molar removal.<\/jats:p>\n            <jats:p>Clinical Relevance.<\/jats:p>\n            <jats:p>Dentists and oral surgeons using PAN to assess OAC probability, can anticipate possible OAC and counsel patients.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1007\/s00784-025-06335-z","type":"journal-article","created":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T14:51:34Z","timestamp":1745419894000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Using panoramic radiographs to assess the probability of causing oroantral communication following tooth removal. 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The approval of the Ethical Review Board of the Academic Center for Dentistry Amsterdam (ACTA) was also obtained, under number 2022\u201335410. The study was ruled not to be subject to the Medical Research Involving Human Subjects Act (WMO) (Appendix 2).","order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"No Informed consent was applicable for this study.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed consent"}},{"value":"The authors declare no competing interests.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"263"}}