Correlation between temporomandibular joint morphology and disc displacement by MRI

Farias, Julyanna Filgueiras Gonçalves de; Melo, Saulo Leonardo Sousa; Bento, Patrícia Meira; Oliveira, Letícia Silva; Campos, Paulo Sérgio Flores; Melo, Daniela Pita de

doi:10.1259/dmfr.20150023

Cited by 46 publications

(37 citation statements)

References 40 publications

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“…The DDwR was the most prevalent disc position (59.4%), as reported by other studies 21,41,42 . The disc reduction capacity has been related to anatomical characteristics of the mandibular condyle and mandibular fossa 23,24 .…”

Section: Discussionsupporting

confidence: 58%

“…Several hypotheses have been proposed to explain the etiopathogenesis of disc displacement, including macro and microtrauma in the joint, lack of muscle coordination, ligamentous laxity, changes in TMJ lubrication, postural disorders, stress and depression 19 . Likewise, the anatomical and functional changes of the osseous structures of the TMJ have been associated with disc displacement 20‐25 …”

Section: Introductionmentioning

confidence: 99%

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Association between temporomandibular joint disc position evaluated by magnetic resonance imaging and mandibular condyle inclination evaluated by computed tomography

Stefano

Guercio-Mónaco

Hernández-Andara³

et al. 2020

J of Oral Rehabilitation

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The temporomandibular joint (TMJ) is part of the craniofacial complex and is made up of a large number of structures and elements, making its operation complex, so that small alterations can cause a wide variety of functional problems. 1. These problems are known as temporomandibular disorders (TMD), a generic term covering a group of musculoskeletal and neuromuscular conditions that affect the TMJ, the masticatory muscles and all associated tissues. 2,3 AbstractTemporomandibular joint disc displacement is common in the world's population and could be associated with bone and functional characteristics of the temporomandibular joint. The aim of these study was to analyse the association between temporomandibular joint disc position evaluated by magnetic resonance imaging (MRI) and the inclination of the mandibular condyle evaluated by computed tomography (CT).One hundred and seventy temporomandibular joints (TMJ) were retrospectively analysed. The temporomandibular disc position was evaluated by MRI and classified into three types: normal (N), disc displacement with reduction (DDWR) and disc displacement without reduction (DDWoR). The mandibular condyle measurements evaluated by CT included horizontal, sagittal and coronal inclination. ANOVA followed by post hoc Tukey's test was used to evaluate the interaction between condylar inclination and disc position. There was an association between disc position and the horizontal and sagittal condylar inclination (P < .05). There are statistically significant differences in the mean of horizontal and sagittal inclination of the mandibular condyle between the DDWoR and the other disc positions (P = .002 and P = .004). Disc position was not statistical associated with coronal inclination of condyle (P > .05). These results indicate that the inclination of the mandibular condyle may be different in TMJ with various disc position. A more medial horizontal inclination and a more posterior sagittal inclination of the mandibular condyle are associated with DDWoR. K E Y W O R D Scomputed tomography, magnetic resonance imaging, mandibular condyle, temporomandibular joint, temporomandibular joint disc |The TMD are a major health problem, affecting more than 50% of the world's population at some point in their lives and usually occurs in children, youth and adults of all ages and gender. 4,5 TMD can be classified into two major categories: temporomandibular joint disorders and masticatory muscle disorders. 2,3 Among the disorders of the TMJ are the alterations of the intra-articular mobility and the disorders of the disc-condyle complex. 2,6 Disorders of the disc-condyle complex consist of an abnormal position of the articular disc with respect to the mandibular condyle and the articular eminence. [7][8][9] Abnormal disc position or disc displacement has often been diagnosed in patients of diverse populations and can occur even in the growing population and is considered to be a condition that may worsen over time. 10,11 It has been observed that disc displacement of the TMJ is ab...

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Section: Discussionsupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Association between temporomandibular joint disc position evaluated by magnetic resonance imaging and mandibular condyle inclination evaluated by computed tomography

Stefano

Guercio-Mónaco

Hernández-Andara³

et al. 2020

J of Oral Rehabilitation

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“…For the diagnosis and treatment of TMD, many imaging modalities have been used to evaluate the morphological changes of the TMJ. For the observation of the soft tissue of the TMJ, magnetic resonance imaging (MRI) is considered the gold standard because of its excellent soft tissue contrast 4 . Computed tomography (CT) and cone-beam computed tomography (CBCT) are often used to diagnose the defects of hard tissues of the TMJ.…”

mentioning

confidence: 99%

The detection accuracy of cone beam CT for osseous defects of the temporomandibular joint: a systematic review and meta-analysis

Yin

2016

Sci Rep

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The purpose of this review was to evaluate whether cone-beam computed tomography (CBCT) is reliable for the detection of bone changes of the temporomandibular joint (TMJ). Studies collected from the PubMed, Web of Science, Cochrane Library, ScienceDirect, Embase, Wanfang and CNKI databases were searched, and the publishing time was limited from January 1990 to December 2015. Eight studies (23 experimental research groups) were eventually included for further analysis. The pooled sensitivity was 0.67 and the pooled specificity was 0.87, which leads to a relatively large area (0.84) under the Receiver Operating Characteristic (ROC) curve. The related pooled positive likelihood ratio (+LR) and the pooled negative likelihood ratio (−LR) were 5.2 and 0.38, respectively. The subgroup analysis was conducted for four subgroups categorized by voxel size (≤0.2; >0.2, ≤0.3; >0.3, ≤0.4; >0.4, and ≤0.5 (mm)), and the “>0.4, ≤0.5” subgroup had a higher pooled sensitivity and pooled specificity than the other groups. The present study demonstrates that CBCT has a relatively high diagnostic accuracy for TMJ bone changes, although its reliability is limited. Voxel size did not play a role in the accuracy of CBCT.

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“…Um estudo transversal realizado na Paraíba afirmou que a Ressonância Magnética (RM) é uma modalidade de imagem considerada padrão ouro para avaliar os discos da ATM, e que traz como vantagens um método não invasivo e o não uso da radiação ionizante 13 . Além disso, outro estudo aponta que, apesar da ausência de radiação ionizante na realização do exame de RM, o mesmo disponibiliza, para a formação de suas imagens, de um forte campo magnético acoplado em um sistema de emissão e recepção de ondas e um computador, trazendo imagens de alta fidelidade e definição 14 .…”

Section: Podeunclassified

Métodos De Imagem Empregados No Diagnóstico Das Alterações Da Articulação Temporomandibular: Uma Revisão De Literatura

Pereira¹,

Moura²,

Silva³

2017

RevBahianaOdonto

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| Introduction:Due to its anatomical complexity, the temporomandibular joint (TMJ) is one of the corporeal regions that offers greater difficulty in obtaining conventional images. In this context, it is necessary to use imaging exams that have a greater effectiveness in order to contribute to the diagnosis of alterations of this joint. Objective: this article aims to study the efficacy of imaging tests used to diagnose temporomandibular joint (TMJ) changes and / or injuries. Material and methods: it is a review of the literature, in which ten articles were selected. The PubMed and Scielo databases were consulted. The following descriptors were used: temporomandibular joint, tomography, magnetic resonance imaging, diagnostic imaging and cone-beam computed tomography. Results: Panoramic radiography was considered as an imaging method, not indicated for the diagnosis of TMJ changes due to distortions of the images. Magnetic resonance imaging was recognized as a gold standard for assessing soft tissue changes in TMJ. To evaluate bone changes of the TMJ, cone beam computed tomography was considered ideal. Conclusion: Each imaging method has a specific indication for the diagnosis of TMJ changes. However, in reconciling magnetic resonance imaging and cone beam computed tomography, both provide a complementary diagnosis of all the structures that make up this joint.Keywords: temporomandibular joint, tomography, magnetic resonance imaging, diagnostic imaging and cone-beam computed tomography. RESUMO | Introdução:Diante da sua complexidade anatômica, a articulação temporomandibular (ATM) é uma das regiões corpóreas que oferece maior dificuldade à obtenção de imagens convencionais. Nesse contexto, se faz necessária a utilização de exames imaginológicos que possuam uma maior eficácia para contribuir na obtenção do diagnóstico de alterações dessa articulação. Objetivo: o presente artigo tem por objetivo estudar a eficácia dos exames imaginológicos empregados no diagnóstico das alterações e/ou lesões da articulação temporomandibular (ATM). Material e métodos: trata-se de uma revisão da literatura, na qual foram selecionados dez artigos. As bases de dados PubMed e Scielo foram consultadas. Utilizaram-se os seguintes descritores: articulação temporomandibular, tomografia, imagem por ressonância magnética, diagnóstico por imagem e tomografia computadorizada de feixe cônico. Resultados: A radiografia panorâmica foi considerada um método de imagem contra indicado para o diagnóstico de alterações na ATM, devido às distorções das imagens. A ressonância magnética foi reconhecida como padrão ouro para avaliar alterações nos tecidos moles da ATM. Para avaliar alterações ósseas da ATM, a tomografia computadorizada cone beam foi considerada ideal. Conclusão: cada método de imagem possui indicação específica para o diagnóstico de alterações na ATM. Contudo, ao conciliar as imagens de ressonância magnética e tomografia computadorizada cone beam, ambas proporcionam um diagnóstico complementar de todas as estruturas que compõem ess...

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Correlation between temporomandibular joint morphology and disc displacement by MRI

Cited by 46 publications

References 40 publications

Association between temporomandibular joint disc position evaluated by magnetic resonance imaging and mandibular condyle inclination evaluated by computed tomography

Association between temporomandibular joint disc position evaluated by magnetic resonance imaging and mandibular condyle inclination evaluated by computed tomography

The detection accuracy of cone beam CT for osseous defects of the temporomandibular joint: a systematic review and meta-analysis

Métodos De Imagem Empregados No Diagnóstico Das Alterações Da Articulação Temporomandibular: Uma Revisão De Literatura

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