J Korean Assoc Oral Maxillofac Surg.  2007 Oct;33(5):518-523.

Changes of temporomandiular joint symptoms after orthognathic surgery in the asymmetric prognathism patients

• Kim YS
• Ryu DM

Abstract

PURPOSE: The purpose of this study is to prove that orthognatic surgery on asymmetric prognathism patients improve the temporomandibular dysfunction.
MATERIALS AND METHODS
All 30 patients underwent mandibular setback with B-SSRO including 22 patients Le Fort I surgery in KyungHee medical center. Preoperative and postoperative PA cephalograms & transcranial radiographs were measured midline deviation in Mx and Mn, occlusal canting change, condyle position, the temporomandibular dysfunction were checked before surgery, within 1 month after surgery, 3~6 months, 12-24 months after surgery respectively.
RESULTS
The temporomandibular dysfunction were relieved after surgery in 17 patients of 25 patients.
CONCLUSION
Orthognatic surgery may benefit the temporomandibular joint dysfunction in facial asymmetry patients by obtaining a postoperative stable occlusion and better physiologic neuromuscular function. Specially impovement of occlusal canting may reduce condyle displacement of midline deviation side and the temporomandibular joint dysfunction.

Keyword

Facial asymmetry; Temporomandibular joint dysfunction

MeSH Terms

Facial Asymmetry
Humans
Joints*
Orthognathic Surgery*
Prognathism*
Temporomandibular Joint