title: Flare-up incidence and related factors in Nigerian adults.
abstract: OBJECTIVE
  To determine the incidence of flare-up and the effect of age, gender, visit type, treatment duration, preoperative pain and intraoperative pain on flare-up in Nigerian adults.
  
  
  METHODS
  A total of 175 participants, aged 18 to 60 years with a necrotic central incisor, with or without preoperative pain, participated. They received postoperative paracetamol tablets and were asked to report back if unbearable pain/swelling developed.
  
  
  RESULTS
  A 10% flare-up rate was recorded, while none of the studied factors had a significant relationship with flare-up.
  
  
  CONCLUSIONS
  The relationships between flare-up and studied related factors were not proven.
  
  
  CONCLUSIONS
  Age, gender, visit type, treatment duration, preoperative pain and intraoperative pain have no effect on flare-up incidence.
authors.affiliation: Endodontic Unit, Department of RestorativeDentistry, Faculty of Dentistry, College of Medicine, University of Nigeria, Nigeria.
authors.forename: Christopher I
authors.initials: CI
authors.lastname: Udoye
authors.forename: Hamid
authors.initials: H
authors.lastname: Jafarzadeh
authors.forename: Emmanuel N
authors.initials: EN
authors.lastname: Aguwa
authors.forename: Mehdi
authors.initials: M
authors.lastname: Habibi
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D016009:Chi-Square Distribution; D003430:Cross-Sectional Studies; D003790:Dental Pulp Necrosis / Q000628:therapy; D005260:Female; D006801:Humans; D007180:Incisor; D008297:Male; D008875:Middle Aged; D009549:Nigeria; D009819:Office Visits; D010149:Postoperative Pain / Q000209:etiology*; D012008:Recurrence; D012390:Root Canal Therapy / Q000009:adverse effects*; D012737:Sex Factors; D014098:Toothache / Q000209:etiology*; D055815:Young Adult