Clinical article
Skeletal stability following mandibular advancement and rigid fixation

https://doi.org/10.1016/0278-2391(87)90266-7Get rights and content

Abstract

Twenty non-growing subjects underwent sagittal ramus osteotomies and rigid fixation. Cephalograms were analyzed before surgery, immediately after surgery and at least six months following surgery to evaluate skeletal stability. A mean horizontal relapse of 0.42 mm (8%) and a mean vertical increase in lower face height of 0.2 mm were found six months after surgery. Both were statistically insignificant. The mean backward rotation of the mandible of 0.55° found six months after surgery was statistically significant (P < 0.015), but was considered to be clinically insignificant. The results of this study show that surgical mandibular advancement with rigid fixation is a very reliable and stable procedure.

Cited by (56)

  • Skeletal stability following mandibular advancement with and without advancement genioplasty

    2015, International Journal of Oral and Maxillofacial Surgery
    Citation Excerpt :

    This study found that the mean horizontal relapse in groups 1 and 2 was minimal at both Pog and Me, as relapse was shown to be less than 11%. This observation is comparable to those of most studies in the current literature.14,36–41 Very limited clinical research material is available on the effect of the suprahyoid muscle complex on long-term skeletal stability following a BSSO with or without a genioplasty.10

View all citing articles on Scopus
View full text