Dynamic Weight-bearing Magnetic Resonance in the Clinical Diagnosis of Internal Temporomandibular Joint Disorders

Abstract

Temporomandibular joint (TMJ) disorders can be painful and cause functional limitations and bone changes. Deeper clinical knowledge of the pathologies related to the TMJ has always been hindered by the difficult identification of the causes that limit its movement. Weight-bearing magnetic resonance imaging (WBMRI) can reproduce the articular movement in orthostasis and allows the evaluation of joint movement. WBMRI, compared with other procedures such as double-type condylography and real-time dynamic ultrasound, helps to better identify tissue characteristics of the articular glenoid-condylar surfaces, articular space, disk position on both the open and closed mouth, and the locoregional musculotendinous area. WBMRI also identifies the true position of the articular disk in orthostasis, emphasizing the different joint positions compared with the study carried out in a clinostatic (supine) position.

Visual Analog Scale for Pain Analysis in Patients With Temporomandibular Dysfunction

“…The criteria for involvement of the candidates for the study was that each subject had symptoms of TMD confirmed by a clinical examination, as well as a completed questionnaire. To diagnose temporomandibular joint (TMJ) dysfunction, a questionnaire was used in which patients, using the Visual Analog Scale (VAS), described the cardinal symptoms: pain in the region of the TMJ, painful and limited movement of the lower jaw, crepitations of the temporomandibular joint and disrupted mastication, pain in the masticatory muscles, as well as pain in the neck muscles [4] . Of course, auxiliary diagnostic tools were also used: x-ray antero-posterior (AP) and lateral (LAT) exposure; the device that was used was Gendex Gx Dp-700 orthopantomograph.…”

“…If there is an anatomical disorder of the joint structures, X-ray, magnetic resonance, and computed tomography are used as diagnostic tools [4] .…”

Optimization of Complex Diagnosis and Forecasting of Temporomandibular Joint Diseases by Assessing the Probability of Progression

“…Аксіографія набуває все більшої поширеності у клінічній діагностиці та наукових дослідженнях як об'єктивний метод вимірювання рухової активності та функціонального стану СНЩС [7][8][9][10][11][12][13][14][15]. Забезпечуючи об'єктивну оцінку параметрів руху та структурних характеристик СНЩС, цей метод надає додаткову цінну інформацію, гідну для використання у прогнозуванні можливого розвитку патологічних процесів СНЩС.…”

Role of HIF‐2α/NF‐κB pathway in mechanical stress‐induced temporomandibular joint osteoarthritis

“…

Temporomandibular joint osteoarthritis (TMJOA) is an organic destructive stage of temporomandibular disorder (TMD), characterized by the destruction of the mandibular condylar cartilage (MCC) (Li et al, 2014). Similar to other joints (such as the knee and hip), the TMJ is a load-bearing joint (Giannini et al, 2019;Nakao et al, 2015;Stocum & Eugene, 2018). However, the structure of the bony surfaces of the TMJ is different from that of other joints (Rogers et al, 2018).

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