Maxillofac Plast Reconstr Surg.  2015 Mar;37(3):9. 10.1186/s40902-015-0008-2.

Clinical changes of TMD and condyle stability after two jaw surgery with and without preceding TMD treatments in class III patients

• Yoon SY
• Song JM
• Kim YD
• Chung IK
• Shin SH
• Pusan Korea Pusan National University

• KMID: 2381881
• DOI: http://doi.org/10.1186/s40902-015-0008-2

Abstract

BACKGROUND
This study are to identify the symptomatic changes and condylar stability after 2 jaw surgery without preceding treatments for Temporomandibular joints(TMJ) in class III patients with the TMJ symptoms; and to assess therapeutic effect of 2 jaw surgery and the necessity of preceding treatment for alleviation of TMJ symptoms.
METHODS
30 prognathic patients with preexisting TMJ symptoms were divided into 2 groups according to presence or absence of preceding treatments before the surgery. We evaluated symptomatic changes on both TMJ by questionnaires and clinical examinations. And we reconstructed 3D cone beam computed tomography images before 2 jaw surgery, immediately after the surgery, and 6 months or more after the surgery with SimPlant software, and analyzed the stability of condylar position on 3D reconstruction model. Significances were assessed by the Wilcoxon signed rank test on SPSS ver. 20.0.
RESULTS
Both groups had favorable changes of TMJ symptoms after orthognathic surgery. And postoperative position of condyle had good stability during follow-up period.
CONCLUSION
2 jaw surgery without preceding treatments for TMD can have therapeutic effect for TMD patients with class III malocclusion.

Keyword

Orthognathic surgery; 2 jaw surgery; TMJ; Condylar stability; TMD

MeSH Terms

Cone-Beam Computed Tomography
Follow-Up Studies
Humans
Malocclusion
Orthognathic Surgery*
Surveys and Questionnaires
Temporomandibular Joint