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The sinus floor is elevated and it can be augmented with either autologous or xenogeneic bone grafts following an opening bone window created on the facial buccal wall. Maxillary septa are walls of cortical bone within the maxillary sinus. The septa shape has been described as an inverted gothic arch arising from the inferior or lateral walls of the sinus and may even divide the sinus into two or more cavities. Some authors have reported a higher prevalence of septa in atrophic edentulous areas than in nonatrophic ones. Radiographic identification of these structures is important in order to perform the right design of the lateral window during sinus lift. Aim of this investigation is to highlight the correct steps for doing sinus lift surgery in presence of those anatomic variations. Clinicians should always perform clinical and radiographic diagnosis in order to avoid complications related to the sinus lift surgery.<\/jats:p>","DOI":"10.1155\/2012\/261905","type":"journal-article","created":{"date-parts":[[2012,7,19]],"date-time":"2012-07-19T00:16:45Z","timestamp":1342657005000},"page":"1-6","source":"Crossref","is-referenced-by-count":104,"title":["Schneider Membrane Elevation in Presence of Sinus Septa: Anatomic Features and Surgical Management"],"prefix":"10.1155","volume":"2012","author":[{"given":"Mario","family":"Beretta","sequence":"first","affiliation":[{"name":"Implantology Department, School of Dentistry, University of Milan, IRCSS C\u00e0 Grande, MI, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marco","family":"Cicci\u00f9","sequence":"additional","affiliation":[{"name":"Human Pathology Department, Dental School, Messina University, Via Consolare Valeria 98100, Messina, 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