Craniomaxillofacial Deformitites / Sleep Disorders / Cosmetic SurgeryDoes the Posterior Bending Osteotomy in Bilateral Sagittal Split Osteotomy Affect the Condyle Position in Asymmetric Patients?
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Study Design and Sample Description
This prospective, randomized, controlled study followed the Declaration of Helsinki on Medical Protocol and Ethics and was approved by the Local Ethics Committee of Erciyes University (2019\17). The surgical procedure and possible undesirable conditions were explained to all patients in detail, and informed consent was obtained. The study included patients aged ≤18 to 30 scheduled for asymmetric orthognathic surgery due to Class 2 or Class 3 dentofacial deformity between 2019 and 2020 at the
Results
The sample comprised 42 participants (24 women and 18 men; mean age, 23.3). The patients were randomly divided into 2 groups, PBO (n = 20, 47.6%) and conventional (n = 22, 52.4%), according to the surgical method used to prevent premature contact during BSSO (Fig 8). The sex and age distribution of the patients is shown in Table 2. The sex and age distributions of the groups were statistically similar (Table 2). No significant differences were found in the preoperative type of surgery,
Discussion
The purpose of this study was to measure and compare changes in the postoperative condylar position following BSSO in patients with asymmetry between those treated using PBO and conventional methods.
It is thought that PBO preserves the preoperative position of the condyle better than BSSO in patients with asymmetry. Changes in the condylar position with the 2 different techniques were evaluated prospectively using CBCT, and the effects of these changes on the TMJ were investigated. The authors
References (25)
- et al.
The changes of self-esteem, sensitivity to criticism, and social appearance anxiety in orthognathic surgery patients: A controlled study
Am J Orthod Dentofacial Orthop
(2019) - et al.
Transverse displacement of the proximal segment after bilateral sagittal osteotomy
J Oral Maxillofac Surg
(2002) - et al.
Is there any difference in the condylar position and angulation after asymmetric mandibular setback?
Oral Surg Oral Med Oral Pathol Oral Radiol Endod
(2006) - et al.
Postoperative condylar position by sagittal split ramus osteotomy with and without bone graft
J Oral Maxillofac Surg
(2010) - et al.
Interferences between mandibular proximal and distal segments in orthognathic surgery for patients with asymmetric mandibular prognathism depending on different osteotomy techniques
Oral Surg Oral Med Oral Pathol Oral Radiol Endod
(2010) - et al.
Factors influencing condylar position after the bilateral sagittal split osteotomy fixed with bicortical screws
J Oral Maxillofac Surg
(1999) A method to passively align the sagittal ramus osteotomy segments
J Oral Maxillofac Surg
(2007)- et al.
Short-term changes of condylar position after sagittal split osteotomy for mandibular advancement
Oral Surg Oral Med Oral Pathol Oral Radiol Endod
(1999) - et al.
Variation in condyle-fossa relationships according to different methods of evaluation in tomograms
Oral Surg Oral Med Oral Pathol
(1986) - et al.
Change in condylar position in posterior bending osteotomy minimizing condylar torque in BSSRO for facial asymmetry
J Craniomaxillofac Surg
(2014)
Three-dimensional computed tomographic assessment of temporomandibular joint stability after orthognathic surgery
J Oral Maxillofac Surg
Condylar positioning devices for orthognathic surgery: Are they necessary?
J Oral Maxillofac Surg
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Conflict of Interest Disclosures: None of the authors have any relevant financial relationship(s) with a commercial interest.