Relapse following mandibular advancement with dental plus skeletal maxillomandibular fixation

Edward Ellis, W. James Gallo

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


This study examines the short-term stability of the mandible following mandibular advancement surgery in which skeletal suspension wires were used in addition to dental maxillomandibular fixation. Twenty adults underwent sagittal ramus osteotomies. No concomitant surgical procedures were performed. Maxillomandibular fixation consisted of wiring between the upper and lower orthodontic brackets and circummandibular wires connected to the piriform aperture or anterior nasal spine wires for eight weeks. Cephalograms were analyzed during this period to evaluate skeletal stability. A statistically insignificant mean horizontal relapse of 8.9% was found at pogonion during the period of fixation. Significant vertical intrusion of the anterior mandible occurred, however, with a mean superior movement of pogonion of 0.83 mm (P ≥ 0.05). Dental changes noted were uprighting of the maxillary incisors and flaring of the mandibular incisors. In comparison with the results of other studies in which dental maxillomandibular fixation was used alone, the results of this study indicate that the use of skeletal suspension wires is advantageous in the prevention of horizontal skeletal relapse.

Original languageEnglish (US)
Pages (from-to)509-515
Number of pages7
JournalJournal of Oral and Maxillofacial Surgery
Issue number7
StatePublished - 1986
Externally publishedYes

ASJC Scopus subject areas

  • Oral Surgery
  • Surgery
  • Otorhinolaryngology


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