J Korean Assoc Maxillofac Plast Reconstr Surg.  2012 Jul;34(4):252-259.

Post-operative Stability of Counter Clockwise Rotation of the Mandibular Plane in Skeletal CIII with Anterior Openbite Patients

• Ryu JM
• Ryu KS
• Lee BS
• Kwon YD
• Choi BJ
• Kim YG
• Ohe JY
• Park SW

Abstract

PURPOSE
This study evaluated the postoperative stability of counter clockwise rotation of the mandibular plane in anterior openbite patients, who have had one jaw surgery performed.
METHODS
This study includes patients with skeletal class III malocclusion accompanied by anterior openbite among the patients who have had BSSRO performed, resulting in counter clockwise rotation of the mandibule. We excluded the patients with genioplasty and segmental surgery, and included 23 patients who underwent BSSRO.
RESULTS
We found no statistical significance between the amount of counter clockwise rotation in the mandible in the Pearson correlation test. Also, there was no significant difference between Group 1 (<3degrees) and Group 2 (>3degrees).
CONCLUSION
This study evaluated the amount of horizontal relapse, and the degree of relapse. Stable results were obtained. Although there was no statistical significance between the degree of openbite and the amount of horizontal relapse, the group with a greater amount of openbite had a greater amount of relapse.

Keyword

Counter clockwise rotation; Stability; Anterior openbite

MeSH Terms

Genioplasty
Humans
Malocclusion
Mandible
Open Bite
Organothiophosphorus Compounds
Orthognathic Surgery
Recurrence
Organothiophosphorus Compounds