Neurosensory and functional evaluation in distraction osteogenesis of the anterior mandibular alveolar process

Int J Oral Maxillofac Surg. 2013 Jan;42(1):55-61. doi: 10.1016/j.ijom.2012.06.015. Epub 2012 Jul 20.


Neurosensory status and craniomandibular function of 19 patients (mean age 35.2 years, range 17.8-58.8 years) treated by combined surgical orthodontic treatment with distraction osteogenesis of the mandibular anterior alveolar process (DO group) was compared with that in 41 orthodontically treated patients (mean age 22.9 years, range 15.1-49.0 years; control group). Clinical examination took place on average 5.9 years (DO group) and 5.4 years (control group) after treatment ended. Neurosensory status was determined by two-point discrimination (2-pd) and the pointed and blunt test. Lateral cephalograms evaluated advancement of the mandibular alveolar process and possible relapse. There was no significant difference in craniomandibular function and neurosensory status between the groups. Age was significantly correlated with 2-pd at the lips (DO: p=0.01, R=0.575; control group: p=0.039, R=0.324) and chin (DO: p=0.029, R=0.501; control group: p=0.008, R=0.410). Younger patients had smaller 2-pd values. Gender, age, the amount of advancement, and relapse at point B or incision inferior show no correlation with craniomandibular function and neurosensory impairment. DO of the mandibular anterior alveolar process is a valuable and safe method with minor side effects regarding neurosensory impairment.

Publication types

  • Comparative Study

MeSH terms

  • Adolescent
  • Adult
  • Age Factors
  • Alveolar Process / pathology
  • Alveolar Process / surgery*
  • Cephalometry / methods
  • Chin / innervation
  • Chin / pathology
  • Facial Pain / etiology
  • Female
  • Follow-Up Studies
  • Humans
  • Incisor / pathology
  • Lip / innervation
  • Lip / pathology
  • Male
  • Mandible / pathology
  • Mandible / surgery*
  • Mandibular Advancement / instrumentation
  • Mandibular Advancement / methods
  • Mandibular Nerve / physiology*
  • Maxilla / pathology
  • Middle Aged
  • Nasal Bone / pathology
  • Orthodontics, Corrective / instrumentation
  • Osteogenesis, Distraction / instrumentation
  • Osteogenesis, Distraction / methods*
  • Range of Motion, Articular / physiology
  • Recurrence
  • Sella Turcica / pathology
  • Sex Factors
  • Temporomandibular Joint / physiology*
  • Touch / physiology*
  • Young Adult