scholarly journals Pain Management Associated with Posttraumatic Unilateral Temporomandibular Joint Anterior Disc Displacement: A Case Report and Literature Review

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Arturo Garrocho-Rangel ◽  
Andrea Gómez-González ◽  
Adriana Torre-Delgadillo ◽  
Socorro Ruiz-Rodríguez ◽  
Amaury Pozos-Guillén
Keyword(s):  
Temporomandibular Joint ◽  
Cervical Vertebrae ◽  
Signs And Symptoms ◽  
Temporomandibular Joint Disorders ◽  
Diagnostic Process ◽  
Disc Displacement ◽  
Occlusal Splints ◽  
Anterior Disc Displacement ◽  
Pediatric Dentists ◽  
Disc Displacement With Reduction

The aim of the present article is to review the etiological risk factors and the general and oral management of anterior disc displacement with reduction caused by a chin trauma, and to describe the diagnostic process and the treatment provided to an affected 7-year-old girl. The patient also experienced frequent and severe cephaleas, which may be related to cervical vertebrae deviation. The patient was successfully treated with an intraoral occlusal splint and analgesics. Pediatric dentists must always be aware of the early signs and symptoms of temporomandibular joint disorders in their patients, especially in cases of orofacial trauma history, with the aim of providing an opportune resolution and preventing its progression later in life. Occlusal splints are strongly recommended for the treatment of anterior disc displacement with reduction in children and adolescents.

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 Diagnostic reproducibility of temporomandibular joint using magnetic resonance imaging at 0.5 and 1.5 Tesla

2017 ◽  
Vol 21 (3) ◽  
Author(s):  
Mathias Pante Fontana ◽  
Nádia Assein Arús ◽  
Mariana Boessio Vizzotto ◽  
Priscila Fernanda Da Silveira ◽  
Heloísa Emília Dias da Silveira ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Temporomandibular Joint ◽  
Soft Tissues ◽  
Shape Change ◽  
Disc Displacement ◽  
Resonance Imaging ◽  
Anterior Disc Displacement ◽  
Disc Displacement With Reduction ◽  
Good Agreement

Introduction: magnetic resonance imaging is described as the reference standard for the evaluation of temporomandibular joint soft tissues; however, the literature shows conflicting results regarding the reproducibility of this method. Objective: this study aimed to assess the reproducibility of temporomandibular joint diagnoses using magnetic resonance imaging at 0.5 and 1.5 Tesla. Methods: a trained observer analyzed 212 temporomandibular joint images (134 at 0.5T and 78 at 1.5T) and diagnosed the presence or absence of nine conditions. Results: overall agreement was over 80% in both magnetic resonance units, with no significant differences (P > 0.05). Images at 0.5T and 1.5T provided excellent reproducibility for anterior disc displacement without reduction (κ = 0.82 and 0.80, respectively), hypermobility (κ = 0.84 and 0.90), and hypomobility (κ = 0.80 and 0.95), while fair to moderate values were obtained for anterior disc displacement with reduction (κ = 0.48 and 0.42) and disc shape changes (κ = 0.45 and 0.37). Conclusion: magnetic resonance imaging diagnoses at 0.5T and 1.5T presented good agreement. However, the lowest reproducibility for anterior disc displacement with reduction and disc shape change reveals the difficulty to diagnose these disorders.

scholarly journals A comparative study of the effects of the anterior disc displacement with reduction and without reduction on the components of the temporomandibular joint by using magnetic resonance imaging – A Retrospective study

2021 ◽  
pp. 73-85
Author(s):  
Shunmugavelu KARTHIK ◽  
◽  
Dimple M VASWANI ◽  
Shanmugam ARASU ◽  
Raghavelu Narendran MUGUNDAN ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Temporomandibular Joint ◽  
Joint Space ◽  
Disc Displacement ◽  
Resonance Imaging ◽  
Range Of Movement ◽  
Anterior Disc Displacement ◽  
Closed Position ◽  
Disc Displacement With Reduction

Background: Internal derangement of the temporomandibular joint (TMJ) results in anterior disc displacement with reduction (ADDR), the disc is ante- riorly displaced in the closed position whereas in the opened position the disc returns to its normal location. In anterior disc displacement without reduction (AD- DWR), the disc is anteriorly displaced in the closed po- sition but does not return to its original location in the opened position. Here we studied and compared the effects of the ADDR and the ADDWR on the components of the TMJ by using the magnetic resonance imaging technique (MRI). Methods and materials: From the archival MRI records, 214 joints from 107 patients were included. The selec- tion criteria for the patients complaints as TMJ pain, clicking, limited mouth opening, headache, jaw tenderness and difficulty in eating. MRI records with sequences Proton Density (PD), PD FAT SAT and T2* gradient in the closed position and T2* gradient echo in the opened position. Data analysis and frequency distribution of explanatory variables by disc position in the open state was performed using chi-square test Results: Statistically significant differences were observed between the variables such as the joint space (closed position), disc morphology (closed position) and range of movement (opened position) among the ADDR and the ADDWR. In ADDWR, 20.3% demonstrated narrowed joint space and 1.6% with widened joint space, while in ADDR, 2.5% of joints had narrowed joint space and 0% widened joint space. Same was observed with abnormal disc morphology and rang of movement. Conclusion: The disc deformity is more in ADDWR compared to ADDR which can be seen as an alteration in the signal intensity. The malaligned disc could lead to the narrowing of the joint space and decreased range of movement in the ADDWR affected individuals.

scholarly journals Association Between -1607 1G/2G Polymorphism of MMP1 and Temporomandibular Joint Anterior Disc Displacement with Reduction

2020 ◽  
Vol 31 (2) ◽  
pp. 152-156
Author(s):  
Alberto Sierra Rosales ◽  
Eduardo Alberto Villaseñor Rodríguez ◽  
Christian Lorena López González ◽  
Edy David Rubio Arellano ◽  
Susan Andrea Gutiérrez Rubio ◽  
...  
Keyword(s):  
Temporomandibular Joint ◽  
Control Group ◽  
Disc Displacement ◽  
Western Mexico ◽  
Accelerated Degradation ◽  
Matrix Metalloproteinase 1 ◽  
Anterior Disc Displacement ◽  
The Matrix ◽  
Study Participants ◽  
Disc Displacement With Reduction

Abstract Anterior disc displacement with reduction (DDWR) is considered one of the most common disorders within the temporomandibular joint (TMJ), with a prevalence of 41% in adults. Matrix metalloproteinases play an important role in the degradation of the TMJ and the matrix metalloproteinase 1 (MMP1) 1607 1G/2G polymorphism increases the local expression of MMP1 thus leading to accelerated degradation of the extracellular matrix. The objective of this study was to evaluate the association between the 1607 1G/2G polymorphism of MMP1 gene and DDWR in a group of Mexican individuals from western Mexico. A total of 67 unrelated individuals, between the ages of 18 and 36 years, of both genders, were included in this study. Study participants with DDWR were required to meet the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD), while a second control group of 90 individuals without DDWR were also included. Both groups were required to have paternal and maternal ancestry (grandparents) of the same geographic and ethnic region. Genotypes were determined using the nested PCR technique. The 1G/2G polymorphism was found in 68.7%, followed by 2G/2G in 25.4% and 1G/1G in 6.0% of the cases group. While the prevalence in the control group was 55.5% for the 1G/2G polymorphism, 26.6% for 1G/1G and 17.7% for 2G/2G. An association was found between the 2G allele of the 1607 1G/2G polymorphism of MMP1 gene and the presence of DDWR in the patients of western Mexico.

scholarly journals The analysis of temporomandibular disorder based on RDC/TMD Axis I revision 2010 in dentistry students

2016 ◽  
Vol 28 (2) ◽  
Author(s):  
Rasmi Rikmasari ◽  
An-Nissa Kusumadewi ◽  
Lisda Damayanti ◽  
Hasna Dziab ◽  
Erna Kurnikasari
Keyword(s):  
Temporomandibular Joint ◽  
Temporomandibular Disorder ◽  
Population Based ◽  
Temporomandibular Joint Disorders ◽  
Diagnostic Methods ◽  
Disc Displacement ◽  
Stomatognathic System ◽  
Axis I ◽  
Myofacial Pain ◽  
Disc Displacement With Reduction

Introduction: Temporomandibular joint disorders is a pathologic conditions as a caused of musculoskeletal pain and dysfunction syndrome in stomatognathic system. This disorder was suffered in the population and affected the quality of life. This study was done to know how was the condition of temporomandibular joint disorders in the student of Faculty of Dentistry Universitas Padjadjaran population. Another objective of this study was the diagnosis classification of revised RDC-TMD Axis I could be applicated in Indonesian population, and to calibrate the diagnostic. Methods: The research sample was 65, with 43 female and 22 male. Result: The result showed that 50% of the student of Faculty of Dentistry Universitas Padjadjaran minimally suffered one diagnosis of temporomandibular joint disorders; with the most disorder was disc displacement with reduction, in left or right joint, followed by myofacial pain with limited opening. Conclusion: The conclusion of this research there was a high percentage of temporomandibular joint disorders in student population based on Revised Research Diagnosis Criteria for Temporomandibular Joint Disorders 2010, with the most disorder were disc displacement with reduction. So, it was important to socialize this sign and symptom of these disorders to community.

scholarly journals Effect of Occlusal Splints on the Stress Distribution on the Temporomandibular Joint Disc

2017 ◽  
Vol 28 (3) ◽  
pp. 324-329 ◽  
Author(s):  
Fabiane Maria Ferreira ◽  
Paulo Cézar Simamoto-Júnior ◽  
Carlos José Soares ◽  
António Manuel de Amaral Monteiro Ramos ◽  
Alfredo Júlio Fernandes-Neto
Keyword(s):  
Stress Distribution ◽  
Temporomandibular Joint ◽  
Disc Displacement ◽  
Fe Model ◽  
Distribution Analysis ◽  
Articular Disc ◽  
Occlusal Splint ◽  
Occlusal Splints ◽  
Anterior Disc Displacement ◽  
Disc Position

Abstract Conservative approach, including occlusal splint therapy, is the first option to treat temporomandibular disorders (TMD), because of its reversibility. The present study analyzed the effect of the articular disc position and occlusal splints use on the stress distribution on this disc. A two-dimensional (2D) finite element (FE) model of the temporomandibular joint with the articular disc at its physiologic position was constructed based on cone-beam computed tomography. Three other FE models were created changing the disc position, according to occlusal splint use and anterior disc displacement condition. Structural stress distribution analysis was performed using Marc-Mentat package. The equivalent von Mises stress was used to compare the study factor. Higher stress concentration was observed on the intermediate to anterior zone of the disc, with maximum values over 2MPa. No relevant difference was verified on the stress distribution and magnitude comparing disc positions and occlusal splint use. However, there was stress reduction arising from the use of the occlusal splints in cases of anterior disc displacement. In conclusion, based on the generated FE models and established boundary conditions, the stress increased at the intermediate zone of the TMJ disc during physiological mandible closure. The stress magnitude was similar in all tested situations

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