Home Subscription Services
 
   

 
The International Journal of Adult Orthodontics & Orthogathic Surgery
AOOS Home Page
About the Editor
Reprints / Articles
Permissions
MEDLINE Search
 
 
 
 
 
FacebookTwitter

Publication:
International Journal of Adult Orthodontics and Orthognathic Surgery

Year 1996
Volume 11 , Issue 4

Back
Pages: 301 - 311

Soft tissue changes after superior repositioning of the maxilla with Le Fort I osteotomy: 5-year follow-up

Lee/Bailey/Proffit

Long-term changes in soft tissue landmark positions were examined in 49 patients following superior repositioning of the maxilla by Le Fort I osteotomy. From presurgery to 1 year, on average the upper lip moved up one third the distance that the upper incisor and point A did, but there was considerable variability. In 25% of the patients the upper lip moved up more than 2 mm, and in 6% it moved up more than 4 mm. As the mandible rotated upward and forward in response to the maxillary movement, soft tissue movements paralleled the adjacent hard tissue movements almost exactly in the absence of genioplasty. From 1 to 5 years postsurgery, in 25% of the patients the maxilla moved downward more than 2 mm, and the mandible rotated down and back, often without relapse of occlusal relationships. In both jaws, long-term changes in soft tissue landmarks exceeded hard tissue changes, meaning soft ti ssue points tended to move downward even if hard tissue points were stable and moved down more than the corresponding hard tissue points when skeletal changes occurred.

 

  © 2014 Quintessence Publishing Co Inc
 

Home | Subscription Services | Books | Journals | Multimedia | Events | Blog
Terms of Use | Privacy Policy | About Us | Contact Us | Advertising | Help | Sitemap | Catalog