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TMJ disorders

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https://www.readbyqxmd.com/read/29660457/a-lectin-fraction-from-green-seaweed-caulerpa-cupressoides-inhibits-inflammatory-nociception-in-the-temporomandibular-joint-of-rats-dependent-from-peripheral-mechanisms
#1
Renata Line da Conceição Rivanor, Danielle Rocha Do Val, Natássia Albuquerque Ribeiro, Felipe Dantas Silveira, Ellen Lima de Assis, Álvaro Xavier Franco, Lorena Vasconcelos Vieira, Ismael Nilo Lino de Queiroz, Hellíada Vasconcelos Chaves, Mirna Marques Bezerra, Norma Maria Barros Benevides
Temporomandibular disorders are the second most common cause of orofacial pain mediated by inflammatory compounds, which in many cases leads to chronic orofacial pain. This study assessed the antinociceptive and anti-inflammatory effects of a lectin from the green seaweed Caulerpa cupressoides (CcL) on hypernociception inflammatory in TMJ of rats and investigated the involvement of different mechanisms. Rats received i.v. CcL 30 min prior to injection of flogistic agentes or 0.9% saline into the left TMJ...
April 13, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29655411/functional-disorders-of-the-temporomandibular-joints-internal-derangement-of-the-temporomandibular-joint
#2
REVIEW
Chih-Ling Chang, Ding-Han Wang, Mu-Chen Yang, Wun-Eng Hsu, Ming-Lun Hsu
Temporomandibular joint (TMJ) is one of the most complex joints of the human body. Due to its unique movement, in terms of combination of rotation and translator movement, disc of the joint plays an important role to maintain its normal function. In order to sustain the normal function of the TMJ, disc must be kept in proper position as well as maintain normal shape in all circumstances. Once the disc is not any more in its normal position during function of the joint, disturbance of the joint can be occurred which will lead to subsequent distortion of the disc...
April 2018: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/29629642/reliability-of-kinesiography-vs-magnetic-resonance-in-internal-derangement-of-tmj-diagnosis-a-systematic-review-of-the-literature
#3
Fulvia Costantinides, Silvia Parisi, Ingrid Tonni, Christiane Bodin, Erica Vettori, Giuseppe Perinetti, Roberto Di Lenarda
OBJECTIVE: The aim of this systematic review was to evaluate the accuracy and the diagnostic reliability of kinesiography and magnetic resonance imaging (MRI) in diagnosis of patients presenting temporomandibular disorders. METHODS: A literature survey carried out through PubMed, SCOPUS, LILIACS, and the Cochrane Library from the inceptions to the last access on August 18 2016 was performed to locate randomized clinical trials, controlled trials, prospective cohort studies, or retrospective studies (with or without a control group), that examined the diagnostic reliability of recording devices of mandibular movements in comparison to MRI...
April 8, 2018: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/29621430/17%C3%AE-estradiol-induces-mmp-9-and-mmp-13-in-tmj-fibrochondrocytes-via-estrogen-receptor-%C3%AE
#4
N Ahmad, S Chen, W Wang, S Kapila
Temporomandibular joint (TMJ) disorders, including degenerative TMJ disease, occur primarily in women of reproductive age. Previous studies showed elevated estrogen levels in subjects with TMJ disorders relative to controls and the presence of estrogen receptors α and β (ERα and ERβ) in TMJ fibrocartilage. Additionally, estrogen-induced overexpression of specific matrix metalloproteinases (MMPs), including MMP-9 and MMP-13, in TMJ fibrocartilage is accompanied by loss of extracellular matrices. However, the contribution of ERα and ERβ in estrogen-mediated induction of MMP-9 and MMP-13 and the signaling cascade leading to the upregulation of these MMPs have not been elucidated...
April 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29599580/prevalence-and-severity-of-temporomandibular-disorders-among-the-orthodontic-patients-using-fonseca-s-questionnaire
#5
Sandhya Jain, Sunny Chourse, Deshraj Jain
Objective: The purpose of the study is to determine the prevalence of TMDs among the 12-18 years and 19-30 years patient age group requiring orthodontic treatment by using the Fonseca's questionnaire. Material and Methods: A total of 390 patients who visited the orthodontic department for treatment were asked to fill Fonseca's questionnaire. The results were analyzed for both the age groups and the percentage values were compared between males and females, different types of malocclusion and presence of TMDs...
January 2018: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29595332/three-dimensional-cbct-images-registration-method-for-tmj-based-on-reconstructed-condyle-and-skull-base
#6
Yue Zhou, Ju-Peng Li, Wen-Chao Lv, Ruo-Han Ma, Gang Li
OBJECTIVES: A method was introduced for three-dimensional (3D) cone-beam computed tomography (CBCT) images registration of temporomandibular joint (TMJ). This study aimed to provide quantitative and qualitative analysis of TMJ bone changes in two-dimensional (2D) and 3D and to provide the technique for computer aided diagnosis of temporomandibular joint disorders (TMD) in the future. METHODS: Ten TMJ samples of six patients were obtained from Peking University Hospital of Stomatology...
March 29, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29581953/organized-hematoma-of-temporomandibular-joint
#7
Chena Lee, Jong In Yook, Sang-Sun Han
Organized hematoma is a pseudo-tumorous lesion mostly occurs at sinonasal cavity and often confused with malignant neoplasm. The initiation of this lesion is blood accumulation, probably due to trauma, and this hematoma develops into organized hematoma as it encapsulated with fibrous band and neo-vascularized. Since it is uninformed at temporomandibular joint (TMJ) region, imaging diagnosis might be challenging. Also, delayed detection of mass involving TMJ is not uncommon due to confusion with joint disorder...
March 2018: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/29578945/mechanical-perturbation-model-of-tmj-disorders-and-assessment-of-musculature
#8
Alejandro J Almarza
No abstract text is available yet for this article.
March 23, 2018: Pain
https://www.readbyqxmd.com/read/29574810/management-of-temporomandibular-joint-disorders-a-surgeon-s-perspective
#9
G Dimitroulis
Disorders of the Temporomandibular joint (TMJ) may clinically present with jaw pain and restricted mouth opening that may limit a patient's access to comprehensive dental care. The aim of this article is to provide a general overview of the current treatment strategies available in the management of disorders of the TMJ. Both conservative and surgical treatment options will be discussed as there is no one treatment for temporomandibular disorders (TMD) which encompasses a wide range of diagnoses. A multidisciplinary team approach to management is essential in the fundamental care of all TMD patients so that treatment can be specifically tailored to individual patient needs...
March 2018: Australian Dental Journal
https://www.readbyqxmd.com/read/29560497/properties-of-the-temporomandibular-joint-in-growing-pigs
#10
Jesse Lowe, Rohan Bansal, Stephen Badylak, Bryan Brown, William Chung, Alejandro Almarza
A subset of temporomandibular joint (TMJ) disorders are attributed to joint degeneration. The pig has been considered the preferred in-vivo model for the evaluation of potential therapies for TMJ disorders, and practical considerations such as cost and husbandry issues have favored the use of young, skeletally immature animals. However, the effect of growth on the biochemical and biomechanical properties of the TMJ disc and articulating cartilage has not been examined. The present study investigates the effect of age on the biochemical and biomechanical properties of healthy porcine TMJs at 3, 6, and 9 months of age...
March 19, 2018: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29559351/elongated-styloid-process-in-patients-with-temporomandibular-disorders-is-there-a-link
#11
Sebastian Krohn, Phillipp Brockmeyer, Dietmar Kubein-Meesenburg, Christian Kirschneck, Ralf Buergers
BACKGROUND: Elongated styloid processes may display clinical signs that can easily be confused with symptoms associated with temporomandibular disorders (TMD). Thus, the present study aimed to investigate alterations of the styloid process in patients with TMD. METHODS: Temporomandibular joint (TMJ) X-ray images of 192 patients with RDC/TMD diagnoses were examined retrospectively. On each side, the styloid process and mandibular ramus were evaluated regarding length as well as sagittal angulation...
March 17, 2018: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/29556556/an-epidemiological-study-on-the-prevalence-of-temporomandibular-disorder-and-associated-history-and-problems-in-nepalese-subjects
#12
Dinesh Rokaya, Kanokwan Suttagul, Shraddha Joshi, Bishwa Prakash Bhattarai, Pravin Kumar Shah, Shantanu Dixit
Background: Temporomandibular disorder (TMD) represents a subgroup of painful orofacial disorders involving pain in the temporomandibular joint (TMJ) region, fatigue of the cranio-cervico-facial muscles (especially masticatory muscles), limitation of mandible movement, and the presence of a clicking sound in the TMJ. TMD is associated with multiple factors and systemic diseases. This study aimed to assess the prevalence of TMD in Nepalese subjects for the first time. Methods: A total of 500 medical and dental students (127 men and 373 women) participated in this study from May 2016 to September 2016...
February 2018: Journal of Dental Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29533386/sustained-and-repeated-mouth-opening-leads-to-development-of-painful-temporomandibular-disorders-involving-macrophage-microglia-activation-in-mice
#13
Guan Yun Frances Wang, Xiang Qun Shi, Wenjia Wu, Maria Gueorguieva, Mu Yang, Ji Zhang
Temporomandibular disorder (TMD) is a set of heterogeneous musculoskeletal conditions involving the temporomandibular joint (TMJ) and/or the masticatory muscles. Up to 33% of the population has had at least one symptom of TMD with 5-10% of them requiring treatment. Common symptoms include limited jaw movement, joint sound, and pain in the orofacial area. Once TMD becomes chronic, it can be debilitating with comorbidities that greatly reduce one's overall quality of life. However, the underlying mechanism of TMD is unclear due to the multicausative nature of the disease...
March 12, 2018: Pain
https://www.readbyqxmd.com/read/29530735/anterior-pedicle-temporalis-muscle-flap-interposition-in-the-treatment-of-tmj-disorders
#14
A Moreau, M-A Benassarou, L Benslama, P Goudot, T Schoumann
Temporomandibular joint (TMJ) disorders are a common reason for consultation. Failure of medical treatments sometimes leads to the need for one of many surgical alternatives. Our purpose was to evaluate the results of anterior pedicle temporalis muscle flap interposition in the treatment of TMJ disorders. MATERIAL AND METHODS: For this prospective study, we selected 18 patients who underwent TMJ surgery involving the interposition of a temporalis muscle flap according to a standardized technique, between January 1, 2009 and August 31, 2014...
March 9, 2018: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29530720/differential-effects-of-high-physiological-oestrogen-on-the-degeneration-of-mandibular-condylar-cartilage-and-subchondral-bone
#15
Tao Ye, Dongliang Sun, Tong Mu, Yi Chu, Hui Miao, Mian Zhang, Hongxu Yang, Qian Liu, Lei Lu, Xianghui Xing, Shibin Yu
The striking predilection of temporomandibular disorders (TMD) in women, especially during gonad-intact puberty or reproductive years, indicates that oestrogen plays an important role in the progression of TMD, but the underlying mechanism remains unclear. In this study, unilateral anterior crossbite (UAC) was used to create temporomandibular joint osteoarthritis (TMJ OA) models in rats, while 17β-estradiol (E2 ) injections were applied to mimic patients with high-physiological levels of oestrogen. Micro-CT scanning, histological staining and real-time PCR assays were preformed to observe the degenerative changes in the mandibular condylar cartilage and subchondral bone...
March 9, 2018: Bone
https://www.readbyqxmd.com/read/29530039/effect-of-protraction-facemask-on-the-temporomandibular-joint-a-systematic-review
#16
Xinqi Huang, Xiao Cen, Jun Liu
BACKGROUND: The aim of this study was to assess the influence of protraction facemask (PFM) on temporomandibular joint (TMJ) of skeletal Class III malocclusion patients. METHOD: Literature searches were carried out electronically in five English and three Chinese databases (Cochrane Database of Systematic Reviews, the Cochrane Central Register of Controlled Trials, PubMed, Embase, MEDLINE (via Ovid), Chinese Biomedical Literature Database, China National Knowledge Infrastructure, and VIP Database)...
March 12, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/29513209/pharmacotherapy-in-temporomandibular-disorders-a-review
#17
Aviv Ouanounou, Michael Goldberg, Daniel A Haas
Temporomandibular disorder (TMD) is a collective term that includes disorders of the temporomandibular joint (TMJ) and of the masticatory muscles and their associated structures. TMDs are characterized by pain, joint sounds and restricted mandibular movement, and drugs are widely used in the management of that pain. Pharmacological agents commonly used for the treatment of TMDs include non-steroidal anti-inflammatory drugs (NSAIDs), opioids, corticosteroids, muscle relaxants, antidepressants, anticonvulsants and benzodiazepines...
July 2017: Journal—Canadian Dental Association, Journal de L'Association Dentaire Canadienne
https://www.readbyqxmd.com/read/29451403/assessment-of-mri-findings-and-clinical-symptoms-in-patients-with-temporomandibular-joint-disorders
#18
Risa Matsubara, Yoshinobu Yanagi, Kazuhiro Oki, Miki Hisatomi, Karina Cp Santos, Babatunde O Bamgbose, Mariko Fujita, Shunsuke Okada, Shogo Minagi, Junichi Asaumi
OBJECTIVES: To investigate the correlations among various temporomandibular joint (TMJ) findings on MRI and the relationships between MRI findings and symptoms. METHODS: 425 patients (850 TMJs) with temporomandibular joint disorders (TMDs) who underwent MRI were enrolled. Oblique sagittal proton density-weighted and T2  weighted images in open- and closed-mouth positions were evaluated. MRI findings included disc configuration, disc position, condylar morphology, bone marrow pattern, and joint effusion...
February 22, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29420457/ultrasonography-in-the-diagnosis-of-temporomandibular-disorders-a-meta-analysis
#19
Tomasz Klatkiewicz, Krzysztof Gawriołek, Małgorzata Pobudek Radzikowska, Agata Czajka-Jakubowska
BACKGROUND The increased prevalence of temporomandibular disorders (TMDs) requires searching for new, easily accessible diagnostic methods. In addition to routine clinical examination, various methods of imaging temporomandibular joints are available, such as magnetic resonance imaging, computed tomography scans, or scintigraphy. Ultrasound imaging, due to short examination time, low cost, and non-invasiveness, should be recommended as a routine diagnostic procedure. The aim of the study was to investigate whether ultrasound imaging can be used in the diagnosis of temporomandibular joint disorders...
February 8, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29406255/the-effect-of-exercise-on-range-of-movement-and-pain-after-temporomandibular-joint-arthrocentesis
#20
Burcu Bas, Dilara Kazan, Nukhet Kutuk, Vugar Gurbanov
PURPOSE: Arthrocentesis is an effective treatment modality for temporomandibular disorders, especially in patients who have pain and limited mouth opening. Surgeons generally suggest physical exercises after arthrocentesis and arthroscopy procedures; however, there has been no study in the literature evaluating the effects of exercise on clinical outcomes. This study investigated whether physical exercises after arthrocentesis would result in early improvements in clinical symptoms in patients with temporomandibular joint disc displacement without reduction (TMJ DDw/oR)...
January 12, 2018: Journal of Oral and Maxillofacial Surgery
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