Alteration of the mandibular plane during sagittal split advancement: Short- and long-term stability

Daniela Rezende Frey, John P. Hatch, Joseph E. Van Sickels, Calogero Dolce, John D Rugh

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Objectives: We investigated predictors of long- and short-term stability of surgical mandibular advancements with bilateral sagittal split osteotomy (BSSO). Study design: Class II patients (n = 127) received mandibular advancement through BSSO with either rigid internal fixation or wire osteosynthesis. We used multiple linear regression analysis to assess the association of predictor variables with post-treatment horizontal and vertical B-point movement through 2 years. Results: Counterclockwise rotation of the mandibular plane angulation (MPA) was associated with greater horizontal and vertical relapse at all time periods except 8 weeks. Wire osteosynthesis, larger advancements, younger age, and genioplasty were significantly associated with relapse. Conclusions: Surgically closing the MPA is associated with late horizontal and vertical relapse, whereas fixation type is related to early B-point movement. Large advancements with forward and upward repositioning of the mandible, genioplasty, and young age also play a role in relapse after BSSO.

Original languageEnglish (US)
Pages (from-to)160-169
Number of pages10
JournalOral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology
Volume104
Issue number2
DOIs
StatePublished - Aug 2007

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Genioplasty
Osteotomy
Mandibular Advancement
Recurrence
Mandible
Linear Models
Regression Analysis
Therapeutics

ASJC Scopus subject areas

  • Dentistry(all)
  • Pathology and Forensic Medicine
  • Radiology Nuclear Medicine and imaging
  • Surgery

Cite this

Alteration of the mandibular plane during sagittal split advancement : Short- and long-term stability. / Frey, Daniela Rezende; Hatch, John P.; Van Sickels, Joseph E.; Dolce, Calogero; Rugh, John D.

In: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology, Vol. 104, No. 2, 08.2007, p. 160-169.

Research output: Contribution to journalArticle

Frey, Daniela Rezende ; Hatch, John P. ; Van Sickels, Joseph E. ; Dolce, Calogero ; Rugh, John D. / Alteration of the mandibular plane during sagittal split advancement : Short- and long-term stability. In: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology. 2007 ; Vol. 104, No. 2. pp. 160-169.
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