Orthognathic surgery and temporomandibular joint symptoms

Abstract

The aim of this article is to review temporomandibular joint symptoms as well as the effects of orthognathic surgery(OGS) on temporomandibular joint(TMJ). The causes of temporomandibular joint disease(TMD) are multifactorial, and the symptoms of TMD manifest as a limited range of motion of mandible, pain in masticatory muscles and TMJ, Joint noise (clicking, popping, or crepitus), myofascial pain, and other functional limitations. Treatment must be started based on the proper diagnosis, and almost symptoms could be subsided by reversible options. Minimally invasive options and open arthroplasty are also available following reversible treatment when indicated.TMD manifesting in a variety of symptoms, also can apply abnormal stress to mandibular condyles and affect its growth pattern of mandible. Thus, adaptive developmental changes on mandibular condyles and post-developmental degenerative changes of mandibular condyles can create alteration on facial skeleton and occlusion. The changes of facial skeleton in DFD patients following OGS have an impact on TMJ, masticatory musculature, and surrounding soft tissues, and the changes of TMJ symptoms. Maxillofacial surgeons must remind that any surgical procedures involving mandibular osteotomy can directly affect TMJ symptoms, thus pre-existing TMJ symptoms and diagnoses should be considered prior to treatment planning and OGS.

Validation of a novel imaging approach using multi-slice CT and cone-beam CT to follow-up on condylar remodeling after bimaxillary surgery

“…These positional alterations may induce functional stress on the mandibular head, thereby causing condylar remodelling, which is considered to be a possible aetiology of skeletal relapse after orthognathic surgery. 1 When patients show clinical signs and symptoms of potential postsurgical condylar resorption, radiographic imaging is required to obtain additional diagnostic information to optimize patient treatment and to estimate the severity of the condition. High-resolution three-dimensional (3D) imaging is the standard radiographic evaluation tool.…”

Occlusive Therapy of Temporomandibular Disorders

“…Оклюзионные каппы на верхнюю челюсть, по данным некоторых исследователей, уменьшают давление на ВНЧС и увеличивают вертикальное расстояние окклюзии [20,42,53]. Кроме того, использование данных капп на верхней челюсти вызывает уменьшение проявлений синовита и других клинических симптомов [54][55][56].…”

“…Occlusion splits on the maxillae, according to some researchers, reduce the pressure on the TMJ and increase the occlusion vertical distance [20; 42; 53]. In addition, the use of these splits on the maxillae causes a decrease in the manifestations of synovitis and other clinical symptoms [54][55][56].…”

Espectro de dismorfosis dentofaciales: estudio restrospectivo de 23 años en hospital tipo I de alta complejidad Chile.

“…La combinación de procedimientos quirúrgicos y ortodóncicos son una parte integral en la corrección de la maloclusión y anomalías faciales (7) . Con estos procedimientos se logra mejorar el perfil facial y corregir los problemas funcionales (8) . Según la Asociación Americana de Cirujanos Orales y Maxilofaciales las indicaciones funcionales para una cirugía ortognática son: disfunción de la vía aérea, trastornos temporomandibulares, desórdenes psicológicos e impedimentos del habla (9) .…”