TY  - JOUR
T1  - Prevalence of Temporomandibular Disorders in Bilateral Sagittal Split Osteotomy Surgery Patients: A Single Institutional Retrospective Study
A1  - Tejomurtula Sai Vamsidhar
A1  - Saravanan Lakshmanan
A1  - Gidean Arularasan
A1  - Senthil Murugan Pandurangan
A1  - Murugesan Krishnan
JF  - Annals of Dental Specialty
JO  - Ann Dent Spec
SN  - 2347-2022
Y1  - 2025
VL  - 13
IS  - 2
DO  - 10.51847/xjac3HJ2Us
SP  - 78
EP  - 82
N2  - Temporomandibular disorders (TMDs) are multifactorial conditions affecting the temporomandibular joint (TMJ), muscles of mastication, and associated structures. Orthognathic surgery, particularly bilateral sagittal split osteotomy (BSSO), plays a dual role in improving skeletal discrepancies and influencing TMD outcomes in both skeletal and functional aspects. This study aimed to evaluate the prevalence of TMD before and after BSSO in patients undergoing orthognathic surgery. A retrospective analysis was performed on 50 patients who received BSSO for mandibular deformities from 2018 to 2023. Preoperative and postoperative TMD symptoms and mouth opening were recorded at three follow-up intervals: 6 months, 12 months. Clinical parameters included  joint sounds, pain on TMJ palpation, mandibular range of motion, deviation on opening, and radiological joint changes. Data were analyzed statistically to assess prevalence and associations. Preoperative TMD symptoms were identified in 46% (n=23) patients, most commonly joint clicking and myofascial pain. Postoperatively,78% (18/23) of these patients demonstrated improvement or complete resolution of symptoms, whereas 22% (5/23) patients remained unchanged and 18% (5/27) patients developed new-onset TMD. The most favorable outcomes were noted in patients with mandibular prognathism corrected with BSSO set back and rigid fixation. The risk of persistent or aggravated TMD was associated with preoperative degenerative changes and excessive intraoperative condylar torque. BSSO significantly reduces the prevalence of TMD in patients with skeletal malocclusion, though new-onset symptoms may develop in a subset. Careful case selection, precise surgical execution, and postoperative follow up are critical to minimizing adverse TMJ outcomes.
UR  - https://annalsofdentalspecialty.net.in/article/prevalence-of-temporomandibular-disorders-in-bilateral-sagittal-split-osteotomy-surgery-patients-a-blrvzh9wivvxyl4
ER  -