title: [The morphology and incidence of maxillary sinus septa].
abstract: OBJECTIVE
  The variations and frequency of bony septa in the paranasal sinuses were studied prospectively by means of computed tomography.
  
  
  METHODS
  The presence and morphology of the septa in the paranasal sinuses were studied in 100 consecutive non-selected adults.
  
  
  RESULTS
  CT examinations of 200 maxillary antra showed variations in 26 (13%). There were one complete septum (0.5%), 18 incomplete septa at the base of the antrum (9%) and 7 incomplete septa situated anteriorly (3.5%).
  
  
  CONCLUSIONS
  Bony septa in the sinuses may be clinically relevant during sinus endoscopy or tooth implantation. Preoperative examination may reduce the complication rate of these procedures.
authors.affiliation: Institut für Radiologie, Krankenhaus St. Franziskus, Grieskirchen, Osterreich.
authors.forename: H
authors.initials: H
authors.lastname: Lugmayr
authors.forename: G
authors.initials: G
authors.lastname: Krennmair
authors.forename: H
authors.initials: H
authors.lastname: Holzer
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008443:Maxillary Sinus / Q000002:abnormalities / Q000000981:diagnostic imaging* / Q000473:pathology*; D008875:Middle Aged; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods