Magnetic resonance imaging evaluation of temporomandibular joint disc deformities in relation to type of disc displacement

Taşkaya-Yılmaz, Nergiz; Öḡütcen-Toller, Melahat

doi:10.1053/joms.2001.25015

Cited by 81 publications

(59 citation statements)

References 21 publications

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“…Deformation most commonly begins with thickening and enlargement of the posterior band of the disc 18. Using MRI, Taşkaya-Yilmaz and Oğütcen-Toller5 categorized the disc configuration as biconcave (normal), folded, lengthened, round, biconvex, and thickened posterior band. Disc deformation associated with disc displacement appears more frequently with a greater degree of displacement such as disc displacement without reduction.…”

Section: Discussionmentioning

confidence: 99%

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Relationship between anterior disc displacement with/without reduction and effusion in temporomandibular disorder patients using magnetic resonance imaging

2013

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PurposeThis study was performed to evaluate the relationship between anterior disc displacement and effusion in temporomandibular disorder (TMD) patients using magnetic resonance imaging (MRI).Materials and MethodsThe study subjects included 253 TMD patients. MRI examinations were performed using a 1.5 T MRI scanner. T1- and T2-weighted images with para-sagittal and para-coronal images were obtained. According to the MRI findings, temporomandibular joint (TMJ) disc positions were divided into 3 subgroups: normal, anterior disc displacement with reduction (DWR), and anterior disc displacement without reduction (DWOR). The cases of effusion were divided into 4 groups: normal, mild (E1), moderate (E2), and marked effusion (E3). Statistical analysis was made by the Fisher's exact test using SPSS (version 12.0, SPSS Inc., Chicago, IL, USA).ResultsThe subjects consisted of 62 males and 191 females with a mean age of 28.5 years. Of the 253 patients, T1- and T2-weighted images revealed 34 (13.4%) normal, DWR in 103 (40.7%), and DWOR in 116 (45.9%) on the right side and 37 (14.6%) normal, DWR in 94 (37.2%), and DWOR in 122 (48.2%) joints on the left side. Also, T2-images revealed 82 (32.4%) normal, 78 (30.8%) E1, 51 (20.2%) E2, and 42 (16.6%) E3 joints on the right side and 79 (31.2%) normal, 85 (33.6%) E1, 57 (22.5%) E2, and 32 (12.7%) E3 on the left side. There was no difference between the right and left side.ConclusionAnterior disc displacement was not related to the MRI findings of effusion in TMD patients (P>0.05).

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Section: Discussionmentioning

confidence: 99%

“…Disc displacement with or without reduction of the TMJ is an intracapsular dysfunction that leads to degenerative changes in the disc and articular surface 5. TMJ dysfunction may be either a progressive disorder or one that resolves spontaneously.…”

Section: Introductionmentioning

confidence: 99%

Relationship between anterior disc displacement with/without reduction and effusion in temporomandibular disorder patients using magnetic resonance imaging

2013

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“…Changes in disc morphology can result in internal derangements (ID) of the TMJ. Yilmaz and Toller reported that the more advanced the ID, the more deformed the disc configuration. Disc deformation was also associated with abnormal joint function.…”

Section: Discussionmentioning

confidence: 99%

Influence of defective complete dentures renewal on TMD; an MRI and clinical controlled prospective study

Abdelnabi

Swelem

2013

Gerodontology

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“…Electrovibratographic records and macroscopic examinations of articulations of corpses showed that 20% of the TMJs with clicking had the disk displaced anteriorly and 22% of the TMJs with crepitation had arthrosis or disk perforation 4. Later recapture of the disk causes clicking at the end of mouth opening and indicates that the bilaminar zone is more affected 5. The microscopic aspects of the disk surface can also be altered 6…”

Section: Introductionmentioning

confidence: 99%

Evaluation of TMJ sound on the subject with TMJ disorder by Joint Vibration Analysis

et al. 2009

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STATEMENT OF PROBLEMQualitative and semi-quantitative methods have been developed for TMJ sound classification, but the criteria presented are completely inhomogeneous. Thus, to develop more objective criteria for defining TMJ sounds, electroacoustical systems have been developed. We used Joint vibration analysis in the BioPAK system (Bioresearch Inc., Milwaukee, USA) as the electrovibratography.PURPOSEThe aim of this study was to examine the TMJ sounds with repect to frequency spectra patterns and the integral > 300 Hz /< 300 Hz ratios via six-months follow-up.MATERIAL AND METHODSThis study was done before and after the six-months recordings with 20 dental school students showed anterior disk displacement with reduction. Joint vibrations were analyzed using a mathematical technique known as the Fast Fourier Transform.RESULTSIn this study Group I and Group II showed varied integral > 300 /< 300 ratios before and after the six-months recordings. Also, by the comparative study between the integral > 300 /< 300 ratios and the frequency spectrums, it was conceivable that the frequency spectrums showed similar patterns at the same location that the joint sound occurred before and after the six-months recordings. while the frequency spectrums showed varied patterns at the different locations that the joint sound occurred before and after six-month recordings, it would possibly be due to the differences in the degree of internal derangement and/or in the shape of the disc.CONCLUSIONSIt is suggested that clinicians consider the integral > 300 /< 300 ratios as well as the frequency spectrums to decide the starting-point of the treatment for TMJ sounds.

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Magnetic resonance imaging evaluation of temporomandibular joint disc deformities in relation to type of disc displacement

Cited by 81 publications

References 21 publications

Relationship between anterior disc displacement with/without reduction and effusion in temporomandibular disorder patients using magnetic resonance imaging

Relationship between anterior disc displacement with/without reduction and effusion in temporomandibular disorder patients using magnetic resonance imaging

Influence of defective complete dentures renewal on TMD; an MRI and clinical controlled prospective study

Evaluation of TMJ sound on the subject with TMJ disorder by Joint Vibration Analysis

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