title: Mandibular irregularity index stability following alveolar corticotomy and grafting: a 10-year preliminary study.
abstract: OBJECTIVE
  To evaluate mandibular irregularity index stability following orthodontic treatment facilitated by alveolar corticotomy and augmentation bone grafting (Cort+).
  
  
  METHODS
  The irregularity index of 121 orthodontically treated and 15 untreated patient study casts was analyzed at 5 years and 10 years.
  
  
  RESULTS
  Cort+ resulted in significantly lower mandibular irregularity index scores at both 5 years (1.5 mm vs 4.2 mm, P < .000) and 10 years (2.1 mm vs 4.1 mm, P < .000) compared with conventionally treated patients.
  
  
  CONCLUSIONS
  Unmatched samples advise caution with conclusions, but orthodontic therapy combined with Cort+ enhanced the stability of the postorthodontic mandibular irregularity index for at least 10 years in this preliminary study.
authors.affiliation: a  Instructor, Advanced Orthodontics Program, European University College, Dubai, United Arab Emirates.
authors.forename: Laith
authors.initials: L
authors.lastname: Makki
authors.affiliation: b  Professor of Orthodontics and Dean, European University College, Dubai, United Arab Emirates.
authors.forename: Donald J
authors.initials: DJ
authors.lastname: Ferguson
authors.affiliation: c  Private Practice in Periodontology, Erie, PA; Departments of Periodontology, Case Western Reserve University, Cleveland, Oh and University of Pennsylvania School of Dental Medicine, Philadelphia, PA.
authors.forename: M Thomas
authors.initials: MT
authors.lastname: Wilcko
authors.affiliation: d  Private Practice in Orthodontics, Erie, PA; Department of Orthodontics, University of Pennsylvania School of Dental Medicine, Philadelphia, PA.
authors.forename: William M
authors.initials: WM
authors.lastname: Wilcko
authors.affiliation: e  Associate Professor, Department of Orthodontics, Faculty of Odontology, Malmö University, Sweden.
authors.forename: Krister
authors.initials: K
authors.lastname: Bjerklin
authors.affiliation: f  Instructor, Advanced Orthodontics Program, European University College, Dubai, United Arab Emirates.
authors.forename: Roelien
authors.initials: R
authors.lastname: Stapelberg
authors.affiliation: g  Assistant Professor, Advanced Orthodontics Program, European University College, Dubai, United Arab Emirates.
authors.forename: Anas
authors.initials: A
authors.lastname: Al-Mulla
mesh_terms: D000328:Adult; D000539:Alveolar Process / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008334:Mandible / Q000473:pathology*; D009971:Orthodontics, Corrective / Q000379:methods*; D013997:Time Factors
keywords: 10 years; Bone grafting; Corticotomy; Irregularity index; Orthodontics; Outcome stability