Is Temporomandibular Joint Disc Displacement without Reduction a Plausible Cause of Condylar Hypoplasia? A Case Report

2019 ◽  
Vol 1 (1) ◽  
pp. 68-73 ◽  
Author(s):  
Yi-Shu Liu ◽  
Adrian U-Jin Yap ◽  
Jie Lei ◽  
Kai-Yuan Fu
Keyword(s):  
Temporomandibular Joint ◽  
Clinical Presentation ◽  
Mouth Opening ◽  
Disc Displacement ◽  
Normal Morphology ◽  
Temporomandibular Joint Disc ◽  
Tmj Disc ◽  
Heat Therapy ◽  
Initial Support ◽  
Tmj Pain

Background: The causes of mandibular condylar hypoplasia can be congenital or acquired in nature. Cited local causes of acquired hypoplasia include trauma, infection and irradiation. We report a case of hypoplastic condyle that was attributed to temporomandibular joint (TMJ) disc displacement without reduction (DDwoR). Clinical Presentation: A 16-year-old male presented with restricted mouth opening and right TMJ pain for 6 months. He was subsequently diagnosed with DDwoR. Conservative treatment comprising self-care and moist-heat therapy was administered and he was followed for 27 months without any further interventions. During this period, transitions from “normal” morphology to condylar flattening / erosion, and eventually a re-modeled smaller “normal” right TMJ were observed. Conclusion: The present case provided initial support that DDwoR could be a plausible cause of condylar hypoplasia in adolescents / young adults.

scholarly journals Temporomandibular joint disc displacement with reduction: a review of mechanisms and clinical presentation

2019 ◽  
Vol 27 ◽  
Author(s):  
Rodrigo Lorenzi POLUHA ◽  
Giancarlo De la Torre CANALES ◽  
Yuri Martins COSTA ◽  
Eduardo GROSSMANN ◽  
Leonardo Rigoldi BONJARDIM ◽  
...  
Keyword(s):  
Temporomandibular Joint ◽  
Clinical Presentation ◽  
Disc Displacement ◽  
Temporomandibular Joint Disc ◽  
Disc Displacement With Reduction

scholarly journals Evaluating the temporomandibular joint disc using calcium-suppressed technique in dual-layer detector computed tomography

2019 ◽  
Vol 48 (3) ◽  
pp. 030006051989133
Author(s):  
Xiaohuan Zhang ◽  
Mengqi Liu ◽  
Yanyi Wang ◽  
Weiwei Deng ◽  
Houmin Tan ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Temporomandibular Joint ◽  
Proton Density ◽  
P Value ◽  
Disc Displacement ◽  
Mr Images ◽  
Posterior Displacement ◽  
Temporomandibular Joint Disc ◽  
Significant Difference ◽  
Tmj Disc

Objectives To investigate the application value of the calcium-suppressed (CaSupp) images of dual-layer detector computed tomography (DLCT) in the evaluation of the temporomandibular joint (TMJ) discs. Methods Thirty-three healthy subjects underwent DLCT and magnetic resonance imaging (MRI) examinations. CaSupp images were reconstructed from the spectral-based images using a calcium suppression algorithm. The location, morphology, and thickness of the posterior band of the TMJ discs were evaluated on the oblique sagittal proton-density weighted images and CaSupp images. Results Of the 66 TMJ discs, anterior displacement was observed on 9 TMJ discs on MR images and 6 TMJ discs on CaSupp images, and posterior displacement was present on 3 TMJ discs on MR and CaSupp images. No significant difference was observed in TMJ disc displacement between MR images and CaSupp images ( P value = 0.730). The TMJ discs without displacement had no significant difference in the thickness of the posterior band between the MR and CaSupp images ( P value = 0.401). Conclusions The calcium-suppressed technique in DLCT may be a simple and preliminary way to evaluate the TMJ disc displacement and structure.

Natural Course of Untreated Symptomatic Temporomandibular Joint Disc Displacement without Reduction

1998 ◽  
Vol 77 (2) ◽  
pp. 361-365 ◽  
Author(s):  
K. Kurita ◽  
P.-L. Westesson ◽  
H. Yuasa ◽  
M. Toyama ◽  
J. Machida ◽  
...  
Keyword(s):  
Temporomandibular Joint ◽  
Natural Course ◽  
Disc Displacement ◽  
Temporomandibular Joint Disc

scholarly journals Management of Internal Derangement of Temporomandibular Joint Disc Displacement with Reduction Using Two Different Lines of Treatment

2021 ◽  
Vol 24 (2) ◽  
pp. 8
Author(s):  
Mohamed Ahmed Helal ◽  
Shoroog Hassan Agou ◽  
Amr Bayoumi ◽  
Ahmed Imam ◽  
Ali Habiballah Hassan
Keyword(s):  
Range Of Motion ◽  
Temporomandibular Joint ◽  
Lower Cost ◽  
Internal Derangement ◽  
Disc Displacement ◽  
Temporomandibular Joint Disc ◽  
Non Invasive ◽  
Anterior Disc Displacement ◽  
Disc Displacement With Reduction

Objetive: This study was to compare the effectiveness of arthrocentesis versus the insertion of anterior repositioning splint (ARS) in improving the mandibular range of motion (MRM) for patients with the temporomandibular joint (TMJ) anterior disc displacement with reduction (ADDwR). Methods: 36 patients diagnosed as ADDwR were recruited and divided randomly into two groups. The first group (G1) was treated by arthrocentesis, and the second (G2) was treated using ARS. All patients were reexamined after six months. Results: Except that for protrusive movement, there were significant differences between the two groups for the percentage changes of the MRM as measured by the amount of pain free opening, unassisted opening, maximum assisted opening, right lateral and left lateral movements (p < 0.05). Conclusion: Within the context of the current study, the non-invasive, lower cost ARS, provided better results in improving the MRM when managing ADDwR cases.   Keywords Arthrocentesis; Anterior repositioning splint; TMD; Internal derangement; Anterior disc displacement; Mandibular range of motion.

scholarly journals The importance of multisection sagittal and coronal magnetic resonance imaging evaluation in the assessment of temporomandibular joint disc position

2020 ◽  
Vol 25 (1) ◽  
pp. 159-168
Author(s):  
Monika Litko-Rola ◽  
Jacek Szkutnik ◽  
Ingrid Różyło-Kalinowska
Keyword(s):  
Sagittal Plane ◽  
Temporomandibular Disorder ◽  
False Negative ◽  
Disc Displacement ◽  
Resonance Imaging ◽  
Imaging Evaluation ◽  
Magnetic Resonance Imaging Evaluation ◽  
Temporomandibular Joint Disc ◽  
Disc Position ◽  
Tmj Disc

Abstract Objectives The aim of this study was to evaluate diagnoses of temporomandibular (TMJ) disc displacement by comparing evaluations done on the basis of central sagittal scans only, the most often used in temporomandibular disorder (TMD) patients, with a multisection evaluation done with both sagittal and coronal scans. Materials and methods Multisection MRI analysis of 382 TMJs was conducted in 191 patients with disc displacement according to RDC/TMD criteria. Disc position in the intercuspal position (IP) was assessed two times using two different methods. The first method involved a TMJ disc position evaluation on the central slide in the oblique sagittal plane only. In the second method, the TMJ disc position was assessed on all oblique sagittal and coronal images. McNemar’s χ2 test was used to evaluate the differences between the sensitivities of two methods. Results The first method (central oblique sagittal scans assessment) identified 148 TMJs (38.7%) with normal disc position compared with 89 TMJs (23.3%) with normal disc position found by the second method (all oblique sagittal and coronal scans assessment). The sensitivity of analysis in both planes was significantly higher than in the sagittal plane only (p < 0.001). Conclusions The multisection analysis in the sagittal and coronal plane allows to distinguish the correct disc position from disc displacement and thus improve evaluation of TMJ internal derangement. Clinical relevance The multisection sagittal and coronal images should be recommended as a standard in MRI of the TMJ disc displacement in patients with TMD to avoid false-negative diagnoses.

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