title: Etiologies and Treatments of Odontogenic Maxillary Sinusitis: A Systematic Review.
abstract: BACKGROUND
  Maxillary sinusitis is an important issue in dentistry and maxillofacial surgery. This study aims to present a systematic review of etiologies and treatments of odontogenic maxillary sinusitis.
  
  
  METHODS
  An electronic database search was performed based on related MeSH keywords. Articles published between January 2001 and December 2014 was selected according to the inclusion criteria. The information extracted from various studies was categorized in various tables.
  
  
  RESULTS
  The study selected 19 studies. In most studies, oroantral fistula (OAF) was the most common etiology of odontogenic sinusitis. Alpha-hemolytic streptococcus was the most common flora in sinusitis with dental origin. The literature shows that the Caldwell-Luc approach may be the best method for treating sinusitis in cases of displaced teeth.
  
  
  CONCLUSIONS
  OAF is a common cause of odontogenic maxillary sinusitis and may easily be treated by endoscopy and fistula closure. Maxillofacial surgeons and dentists should consider this problem to avoid misdiagnosis and prevent complications.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Dental Faculty, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran.
authors.forename: Fahimeh
authors.initials: F
authors.lastname: Akhlaghi
authors.affiliation: Department of Oral and Maxillofacial Surgery, Dental Faculty, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Esmaeelinejad
authors.affiliation: Endodontist, Private Practice, Tehran, IR Iran.
authors.forename: Pooria
authors.initials: P
authors.lastname: Safai
keywords: Endoscopy; Oroantral Fistula; Paranasalsinuses; Sinusitis