title: Stability in dental changes in RME and SARME: a 2-year follow-up.
abstract: OBJECTIVE
  To compare the effects of rapid maxillary expansion (RME) and surgically assisted rapid maxillary expansion (SARME) on dentoalveolar structures following orthodontic treatment, as well as stability at 2-year follow-up.
  
  
  METHODS
  Two groups of subjects were used in the study. Group 1 consisted of 14 subjects (mean age, 12.7 +/- 1.4 years) who were treated with RME, and Group 2 consisted of 13 subjects (mean age, 18.5 +/- 2.3 years) who were treated with SARME. In both groups, all cases had a maxillary width deficiency with bilateral crossbites. Maxillary dental casts were available at three different intervals: pretreatment (T1), after orthodontic treatment (T2), and at follow-up recall (T3). Intermolar and interpremolar width, palatal height, and maxillary arch depth and length were assessed from maxillary dental casts.
  
  
  RESULTS
  Treatment by RME and SARME produced significant increases in intermolar and interpremolar width and maxillary arch length after expansion (T2) (P < .05). The amount of relapse was not significantly different 2 years after treatment (P > .05).
  
  
  CONCLUSIONS
  Although age ranges of the patient groups are different, the dentoalveolar responses of RME and SARME were similar after orthodontic treatment.
authors.affiliation: Department of Maxillofacial Surgery, Cumhuriyet University, Sivas, Turkey. almanoral@hotmail.com
authors.forename: Oral
authors.initials: O
authors.lastname: Sokucu
authors.forename: H Huseyin
authors.initials: HH
authors.lastname: Kosger
authors.forename: A Altug
authors.initials: AA
authors.lastname: Bicakci
authors.forename: Hasan
authors.initials: H
authors.lastname: Babacan
mesh_terms: D000293:Adolescent; D001641:Bicuspid / Q000473:pathology; D002508:Cephalometry / Q000379:methods; D002648:Child; D003724:Dental Arch / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000601:surgery / Q000628:therapy*; D008437:Maxilla / Q000473:pathology / Q000601:surgery*; D003765:Models, Dental; D008963:Molar / Q000473:pathology; D016382:Orthodontic Appliance Design; D018704:Orthodontic Retainers; D010027:Osteotomy / Q000379:methods; D010155:Palatal Expansion Technique / Q000295:instrumentation; D010159:Palate / Q000473:pathology; D012008:Recurrence