A Prospective Study on Relapse Following Bilateral Sagittal Split Osteotomy in Mandibular Set Back Approach.

INTRODUCTION

Orthognathic surgical correction of the mandible by Bilateral sagittal split osteotomy (BSSO) rectifies dental deformities. Despite its advances, skeletal relapse remains a common complication.

AIM: The study aimed to assess skeletal stability following BSSO with mandibular setback stabilized by rigid internal fixation with one four-hole titanium miniplate bilaterally.

MATERIALS AND METHOD: A total of nine patients with skeletal class III malocclusions who required BSSO and setback were included. Following the procedure, rigid internal fixation with one four-hole titanium miniplate bilaterally was performed. Evaluation for relapse during the first week, third month, and sixth month postoperatively was performed.

RESULT: Posterior and anterior facial height increased mildly in three patients, respectively. Pogonion was stable in all patients, with no significant relapse.

CONCLUSION

This study provides insight into low skeletal relapse following BSSO with mandibular setback.