title: Clinical postoperative findings after removal of impacted mandibular third molars: prediction of postoperative facial swelling and pain based on preoperative variables.
abstract: OBJECTIVE
  This paper is intended as an investigation of the relationship between preoperative findings and short-term outcome in third molar surgery.
  
  
  METHODS
  We assessed 153 consecutive surgical extractions of mandibular third molars performed in 140 patients between April 1998 and March 2001.
  
  
  RESULTS
  Fifty-four (35%) of the 153 extractions were performed in male subjects and 99 (65%) in female subjects. The median age was 27 years. The amount of facial swelling varied depending on age and sex. Severe pain was associated with depth and preoperative index of difficulty. Average pain was associated with preoperative index of difficulty.
  
  
  CONCLUSIONS
  In conclusion, we consider that the short-term outcomes of third molar operations (swelling and pain) differ depending on patients' characteristics (age and sex) and preoperative index of difficulty. Further mega-trial studies of the association between preoperative findings and short-term outcome will help to elucidate the true nature and magnitude of the association.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Central Hospital of Tokai Medical Institute, 1 Marune, Arau-tyou, Tokai City 476-8511, Japan. MXE05064@nifty.ne.jp
authors.forename: Hidemichi
authors.initials: H
authors.lastname: Yuasa
authors.forename: Masayuki
authors.initials: M
authors.lastname: Sugiura
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D004487:Edema / Q000209:etiology; D005260:Female; D005544:Forecasting; D006801:Humans; D016015:Logistic Models; D008297:Male; D008334:Mandible; D008875:Middle Aged; D008964:Molar, Third / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D017063:Outcome Assessment, Health Care; D010149:Postoperative Pain / Q000209:etiology; D011379:Prognosis; D011859:Radiography; D012737:Sex Factors; D018709:Statistics, Nonparametric; D014081:Tooth Extraction / Q000009:adverse effects*; D014095:Tooth, Impacted / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D014313:Trismus / Q000209:etiology