title: Modern trends in Class III orthognathic treatment: A time series analysis.
abstract: OBJECTIVE
  To examine the current trends in surgical-orthodontic treatment for patients with Class III malocclusion using time-series analysis.
  
  
  METHODS
  The records of 2994 consecutive patients who underwent orthognathic surgery from January 1, 2004, through December 31, 2015, at Seoul National University Dental Hospital, Seoul, Korea, were reviewed. Clinical data from each surgical and orthodontic treatment record included patient's sex, age at the time of surgery, malocclusion classification, type of orthognathic surgical procedure, place where the orthodontic treatment was performed, orthodontic treatment modality, and time elapsed for pre- and postoperative orthodontic treatment.
  
  
  RESULTS
  Out of the orthognathic surgery patients, 86% had Class III malocclusion. Among them, two-jaw surgeries have become by far the most common orthognathic surgical treatment these days. The age at the time of surgery and the number of new patients had seasonal variations, which demonstrated opposing patterns. There was neither positive nor negative correlation between pre- and postoperative orthodontic treatment time. Elapsed orthodontic treatment time for both before and after Class III orthognathic surgeries has been decreasing over the years.
  
  
  CONCLUSIONS
  Results of the time series analysis might provide clinicians with some insights into current surgical and orthodontic management.
authors: Chang-Hoon
authors: CH
authors: Lee
authors: Hyun-Hee
authors: HH
authors: Park
authors: Byoung-Moo
authors: BM
authors: Seo
authors: Shin-Jae
authors: SJ
authors: Lee
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D008313:Malocclusion, Angle Class III / Q000628:therapy*; D009971:Orthodontics, Corrective / Q000639:trends*; D056948:Orthognathic Surgical Procedures / Q000639:trends*; D056910:Republic of Korea; D012189:Retrospective Studies; D013996:Time and Motion Studies; D016896:Treatment Outcome; D055815:Young Adult
keywords: Class III malocclusion; Time series analysis; Two-jaw surgery