Prevalence, location and morphology of maxillary sinus septa: systematic review and meta-analysis

Department of Oral Surgery, Vienna Medical University, Vienna, Austria.
Journal Of Clinical Periodontology (Impact Factor: 4.01). 04/2012; 39(8):769-73. DOI: 10.1111/j.1600-051X.2012.01897.x
Source: PubMed


To gain further insights and resolve conflicting results in the literature regarding prevalence, predominant location and morphologic variability of maxillary sinus septa.
Electronic and hand searching of English literature identified 33 investigations published from 1995 to 2011. Septa were defined as at least 2-4 mm in height.
Septa were present in 28.4% of 8923 sinuses investigated (95% confidence interval: 24.3-32.5%). Prevalence was significantly higher in atrophic sinuses compared with dentate maxillae (p < 0.001). Septa were located in premolar, molar and retromolar regions in 24.4%, 54.6% and 21.0% respectively. Orientation of septa was transverse in 87.6%, sagittal in 11.1% and horizontal in 1.3% of cases. Septa height measured 7.5 mm on average. Complete septa (dividing the sinus into two separate cavities) were found in only 0.3%. Other rare conditions included multiple septa in one sinus (4.2%) and bilateral septa (17.2%). Septa diagnosis using panoramic radiographs yielded incorrect results in 29% of cases.
In view of their high overall prevalence and significant morphologic variability, 3D radiographic imaging prior to sinus floor augmentation may help to reduce complication rates in the presence of maxillary sinus septa.

Download full-text


Available from: Bernhard Pommer,
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: This review summarizes the articles published by Georg Watzek and coworkers between 2008 and 2012. Georg Watzek has always been not only an inspiring mentor but also a visioner in his field. He has (co)authored more than 200 scientific papers in renowned international scientific journals and edited 9 books. Prof. Georg Watzek and his 150 coworkers have been cited over 2,500 times, clearly reflecting the high scientific impact of the publications. More than 80 % of the work constitutes original articles with thematic issues concentrating mainly on implant osseointegration and bone regeneration. This review provides a short summary of the projects that forms the basis of ongoing research.
    international journal of stomatology & occlusion medicine 11/2013; 6(S1). DOI:10.1007/s12548-013-0081-z
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Background: The purpose of this review is to indicate the prevalence of septa, illustrate the most adequate diagnostic method and further discuss pre-operative considerations and implantological implications. Materials and methods: On June 30 th , 2013, a comprehensive database search was executed using PubMed (Medline) and Google Scholar. No time frames were applied. Only publications in English, Polish and German in peer-reviewed journals were considered. Results: The final number of articles was 55: 7 articles were found to describe the possible aetiology of sinus septa, 34 articles describing the prevalence, 21 including information on classification, 19 showed methods of diagnosis and 24 articles included practical information about the influence of the septa in pre-and implantation surgery. One article could be found in more than one category. Conclusions: Septa can be found in 9% to 70% patients (mean prevalence: about 36%) in every age group — young dentate patients as primary septa and old edentate or edentulous patients as primary or secondary septa more frequ-ent in edentate or edentulous patients. When planning any surgical procedures, septa incidence should be taken into consideration. Precise information about the septa can be obtained from computed tomography (CT) or cone-beam CT. With development of the knowledge and surgical technique, septa appearance has simply become another option for treatment as any form of disadvantage.
    Folia morphologica 12/2013; 73(3):259-266. DOI:10.5603/FM.2014.0041 · 0.47 Impact Factor
  • Source

    01/2014; 2(11):683. DOI:10.12998/wjcc.v2.i11.683
Show more