title: Severe periodontitis and orthodontics: evaluation of long-term results.
abstract: Clinical manifestations of severe periodontitis are very often associated with tooth migration. The aim of this retrospective study is to evaluate dental bone support before orthodontic-periodontal treatment, at immediate postoperative, and long-term postoperative and to compare these results with those obtained from periodontal treatment alone. Fifteen patients (11 women and four men), all with severe periodontitis, mean age 42.8 years (22-61), were followed for an average of 16 years (11-32). Comparison was made between periodontal-orthodontic treatment (Group 1) and periodontal treatment alone (Group 2). Alveolar bone height was measured at T0 (before treatment), T1 (immediate postoperative) and T2 (long-term postoperative). Assessment was performed by means of digitized radiography using Image J Software from the National Institute of Health. The average postoperative observation period between T0 (before treatment) and T2 (long-term results) was 16 years (11 to 32). Results showed an overall bone apposition in groups (1 and 2) immediately after treatment (T1), then at long-term (T2). No statistical difference was observed between both groups (1 and 2).
  
  
  CONCLUSIONS
  an overall bone gain was observed in both treatment groups (periodontal-orthodontic and periodontal alone). The orthodontic treatment combined with periodontal treatment never compromised the benefits of periodontal treatment alone. On the opposite, it appeared to be quite beneficial.
authors.affiliation: Faculté de chirurgie dentaire, université Paris Descartes, Assistance publique-Hôpitaux de Paris, Montrouge, France.
authors.forename: Sylvie
authors.initials: S
authors.lastname: Boyer
authors.forename: Françoise
authors.initials: F
authors.lastname: Fontanel
authors.forename: Marc
authors.initials: M
authors.lastname: Danan
authors.forename: Marie
authors.initials: M
authors.lastname: Olivier
authors.forename: Denis
authors.initials: D
authors.lastname: Bouter
authors.forename: Monique
authors.initials: M
authors.lastname: Brion
mesh_terms: D000293:Adolescent; D000328:Adult; D016301:Alveolar Bone Loss / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery*; D000704:Analysis of Variance; D001861:Bone Regeneration; D055113:Chronic Periodontitis / Q000150:complications / Q000601:surgery*; D003777:Dental Prophylaxis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009971:Orthodontics, Corrective; D019252:Radiography, Dental, Digital; D012189:Retrospective Studies; D055502:Secondary Prevention; D014085:Tooth Migration / Q000209:etiology* / Q000628:therapy*; D055815:Young Adult