title: Late signs and symptoms of maxillary sinusitis after sinus augmentation.
abstract: OBJECTIVE
  The aim of this study was to assess the incidence of late signs and symptoms of acute and chronic maxillary sinusitis after sinus augmentation and to correlate them with predisposing factors.
  
  
  METHODS
  A total of 137 individuals (54 male and 83 female; 153 sinus augmentation procedures) were evaluated retrospectively for signs and symptoms of maxillary sinusitis, 12-80 months after surgery, using a questionnaire and clinical and radiographic examinations.
  
  
  RESULTS
  The incidence of acute and chronic sinusitis after sinus augmentation was low (<5%). History of preoperative sinusitis (P = .001) and sinuses with thick mucosa (P < .0001) were statistically significant factors correlated with late signs and symptoms of sinusitis. There was a slight correlation between chronic sinusitis and women (P = .079) or 2-stage procedures (P = .098). There was no statistical correlation to intraoperative complications, such as membrane perforation and excessive bleeding.
  
  
  CONCLUSIONS
  The occurrence of postoperative chronic sinusitis appears to be limited to patients with history of preoperative sinusitis and sinuses with thick mucosa, despite control of the disease before sinus augmentation. Intraoperative surgical complications have negligible effect. Patients presenting with preoperative sinusitis and sinuses with thick mucosa need to be informed of the increased risk. They require a close follow-up and prompt treatment in the event of signs and symptoms of sinusitis.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Tel-Aviv, Israel. yifatmanor@gmail.com
authors.forename: Yifat
authors.initials: Y
authors.lastname: Manor
authors.forename: Ofer
authors.initials: O
authors.lastname: Mardinger
authors.forename: Ilan
authors.initials: I
authors.lastname: Bietlitum
authors.forename: Aysar
authors.initials: A
authors.lastname: Nashef
authors.forename: Joseph
authors.initials: J
authors.lastname: Nissan
authors.forename: Gavriel
authors.initials: G
authors.lastname: Chaushu
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D000540:Alveolar Ridge Augmentation / Q000379:methods; D016063:Blood Loss, Surgical; D018786:Bone Substitutes / Q000627:therapeutic use; D002908:Chronic Disease; D015331:Cohort Studies; D003758:Dental Implantation, Endosseous / Q000379:methods; D015921:Dental Implants; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007431:Intraoperative Complications; D008297:Male; D008437:Maxilla / Q000601:surgery*; D015523:Maxillary Sinusitis / Q000209:etiology*; D008567:Membranes, Artificial; D008875:Middle Aged; D009092:Mucous Membrane / Q000293:injuries / Q000473:pathology; D011183:Postoperative Complications; D011862:Radiography, Panoramic; D012189:Retrospective Studies; D012307:Risk Factors; D012737:Sex Factors; D012907:Smoking; D013530:Surgical Wound Infection / Q000209:etiology; D014057:Tomography, X-Ray Computed
chemical_list: D018786:Bone Substitutes; D015921:Dental Implants; D008567:Membranes, Artificial