title: [Recovery of maxillary tooth sensibility after Le Fort I osteotomy].
abstract: BACKGROUND
  Upper alveolar nerves, when injured during Le Fort I osteotomies, alter maxillary tooth sensitivity. We had for aim to analyze post-operative maxillary tooth sensitivity recovery.
  
  
  METHODS
  We conducted a prospective study in a series of patients having undergone Le Fort I osteotomy, with, or without mandibular osteotomy or intermaxillary disjunction (IMD). The direction and range of displacement of the maxillary bone were recorded. One tooth in each alveolar sector (incisivocanine, premolar, molar) was tested with an electric stimulator for each patient. The tests were performed before (D-1), and after surgery (D2 or day+2, D+15, M2 (or month +2), M3, and M6).
  
  
  RESULTS
  Twenty-two patients were included. Among the tested teeth, 91.9 % were sensitive at D-1. At D2, only 12.7 % of teeth were sensitive. At D15, M2, M3, and M6, the sensitivity was respectively 33.3 %, 43.1 %, 50 %, and 61.8 %. The recovery of sensitivity was faster in young patients (under 35 years of age) and for upper middle and superior alveolar nerves. There was no difference regarding the direction of maxillary movement.
  
  
  CONCLUSIONS
  Among the teeth that were sensitive before surgery, 87.3 % had not regained sensitivity at D2. The recovery of sensitivity increased at D15. A great displacement of the maxillary bone was an aggravating factor for loss of tooth sensitivity.
authors.affiliation: Service de chirurgie maxillo-faciale et de stomatologie (Pr. C Meyer), hôpital Jean-Minjoz, centre hospitalier universitaire de Besançon, boulevard Flemming, 25030 Besançon cedex, France. Electronic address: bonnotp@gmail.com.
authors.forename: P
authors.initials: P
authors.lastname: Bonnot
authors.affiliation: Service de stomatologie et chirurgie maxillo-faciale (Pr. JL Blanc), hôpital La Timone, (AP-HM), centre hospitalier universitaire de Marseille, rue Saint-Pierre, 13385 Marseille cedex 5, France.
authors.forename: F
authors.initials: F
authors.lastname: Salles
authors.affiliation: Service de stomatologie et chirurgie maxillo-faciale (Pr. JL Blanc), hôpital La Timone, (AP-HM), centre hospitalier universitaire de Marseille, rue Saint-Pierre, 13385 Marseille cedex 5, France.
authors.forename: F
authors.initials: F
authors.lastname: Cheynet
authors.affiliation: Service de stomatologie et chirurgie maxillo-faciale (Pr. JL Blanc), hôpital La Timone, (AP-HM), centre hospitalier universitaire de Marseille, rue Saint-Pierre, 13385 Marseille cedex 5, France.
authors.forename: J L
authors.initials: JL
authors.lastname: Blanc
authors.affiliation: Service de chirurgie maxillo-faciale et de stomatologie (Pr. C Meyer), hôpital Jean-Minjoz, centre hospitalier universitaire de Besançon, boulevard Flemming, 25030 Besançon cedex, France.
authors.forename: B
authors.initials: B
authors.lastname: Ricbourg
authors.affiliation: Service de chirurgie maxillo-faciale et de stomatologie (Pr. C Meyer), hôpital Jean-Minjoz, centre hospitalier universitaire de Besançon, boulevard Flemming, 25030 Besançon cedex, France; Service de stomatologie et chirurgie maxillo-faciale (Pr. JL Blanc), hôpital La Timone, (AP-HM), centre hospitalier universitaire de Marseille, rue Saint-Pierre, 13385 Marseille cedex 5, France; Université de Franche-Comté-UFR SMP, place Saint-Jacques, 25030 Besançon cedex, France.
authors.forename: C
authors.initials: C
authors.lastname: Meyer
mesh_terms: D000293:Adolescent; D000328:Adult; D004558:Electric Stimulation; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008334:Mandible / Q000601:surgery; D008437:Maxilla / Q000601:surgery*; D008875:Middle Aged; D019340:Osteotomy, Le Fort / Q000534:rehabilitation*; D012677:Sensation / Q000502:physiology*; D014070:Tooth / Q000502:physiology*; D055698:Touch Perception / Q000502:physiology; D055815:Young Adult
keywords: Dent; Le Fort I; Osteotomy; Ostéotomie; Sensibilité; Sensitivity; Tooth