title: Bone-borne distractor versus tooth-borne distractor for orthodontic distraction after surgical maxillary expansion: The patient's point of view.
abstract: BACKGROUND
  Orthodontic distraction after surgical maxillary expansion is a mode of treatment regularly used in the context of transverse maxillary constriction. There is, however, no consensus in the literature as to the type of distractor (bone-borne or tooth-borne) that should be used.
  
  
  METHODS
  This retrospective study compared orthodontic distraction using a bone-borne or a tooth-borne distractor from the point of view of tolerance, ease of use and overall patient satisfaction, by means of a questionnaire completed by patients undergoing maxillary expansion surgery in the Stomatology and Maxillofacial Surgery Department of Lille University Hospital between January 2013 and March 2015. The efficacy of the two distractors was also assessed.
  
  
  RESULTS
  Thirty-two patients were included: 10 in the bone-borne distractor group and 22 in the tooth-borne group. Sixty percent of patients questioned found the bone-borne distractor easy to use compared with 32% for the tooth-borne distractor (P=0.167). Tolerance was noted to be comparable and acceptable by the two groups. The overall satisfaction rate was high for both groups at over 90%, and was correlated with ease of use and clear information. The average space gain between the first molars was 11.1mm with the bone-borne device and 10.7mm for the tooth-borne appliance.
  
  
  CONCLUSIONS
  The use of a bone-borne distractor for orthodontic distraction after maxillary expansion surgery appears to be an effective, simple and well-tolerated alternative to the use of a tooth-borne distractor. According to patients, this distractor also appears easier to use than the traditional Hyrax-type distractor. This ease of use is correlated with overall satisfaction.
authors.affiliation: Département universitaire de chirurgie maxillofaciale et stomatologie, hôpital Roger-Salengro, CHU de Lille, rue Emile-Laine, 59037 Lille, France; Université Lille-Nord de France, UDSL, 1, rue Lefèvre, 59000 Lille, France. Electronic address: emilie.garreau@gmail.com.
authors.forename: Emilie
authors.initials: E
authors.lastname: Garreau
authors.affiliation: Médecins du monde, 75018 Paris, France.
authors.forename: Julie
authors.initials: J
authors.lastname: Bouscaillou
authors.affiliation: Département universitaire de chirurgie maxillofaciale et stomatologie, hôpital Roger-Salengro, CHU de Lille, rue Emile-Laine, 59037 Lille, France; Université Lille-Nord de France, UDSL, 1, rue Lefèvre, 59000 Lille, France.
authors.forename: Simon
authors.initials: S
authors.lastname: Rattier
authors.affiliation: Département universitaire de chirurgie maxillofaciale et stomatologie, hôpital Roger-Salengro, CHU de Lille, rue Emile-Laine, 59037 Lille, France; Unité Inserm U1008, médicaments et biomatériaux à libération contrôlée, faculté des sciences pharmaceutiques et biologiques, 3, rue du Professeur-Laguesse, 59000 Lille, France; Association internationale de médecine orale et maxillofaciale, 7 bis, rue de la Créativité, 59650 Villeneuve-d'Ascq, France; Université Lille-Nord de France, UDSL, 1, rue Lefèvre, 59000 Lille, France.
authors.forename: Joël
authors.initials: J
authors.lastname: Ferri
authors.affiliation: Département universitaire de chirurgie maxillofaciale et stomatologie, hôpital Roger-Salengro, CHU de Lille, rue Emile-Laine, 59037 Lille, France; Unité Inserm U1008, médicaments et biomatériaux à libération contrôlée, faculté des sciences pharmaceutiques et biologiques, 3, rue du Professeur-Laguesse, 59000 Lille, France; Association internationale de médecine orale et maxillofaciale, 7 bis, rue de la Créativité, 59650 Villeneuve-d'Ascq, France; Université Lille-Nord de France, UDSL, 1, rue Lefèvre, 59000 Lille, France.
authors.forename: Gwenaël
authors.initials: G
authors.lastname: Raoul
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D052280:Orthodontic Anchorage Procedures / Q000379:methods; D019857:Osteogenesis, Distraction / Q000295:instrumentation / Q000379:methods*; D010155:Palatal Expansion Technique; D017060:Patient Satisfaction; D012189:Retrospective Studies; D011795:Surveys and Questionnaires; D055815:Young Adult
keywords: Bone-borne; Distraction osteogenesis; SARME; Tolerance; Tooth-borne