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Temporomandibular joint

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https://www.readbyqxmd.com/read/29451403/assessment-of-mri-findings-and-clinical-symptoms-in-patients-with-temporomandibular-joint-disorders
#1
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 T 2 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 16, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29448878/a-method-for-preventive-intervention-regarding-temporomandibular-pain-and-dysfunction
#2
Saghafi Ellie, Mejersjö Christina
OBJECTIVE: Adolescent girls frequently suffer from temporomandibular disorder (TMD) symptoms and associated headache. A program aimed at informing about risk behavior for TMD symptoms, how to influence harmful habits and about general relaxation was tested. MATERIAL AND METHODS: Eighty girls at two high schools, 16 years of age, with or without symptoms, were invited to the health information on two occasions and 60 girls participated. Firstly, a questionnaire regarding symptoms and oral parafunctional habits was administrated...
February 15, 2018: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/29447948/roles-of-ihh-signaling-in-chondroprogenitor-function-in-postnatal-condylar-cartilage
#3
Naito Kurio, Cheri Saunders, Till E Bechtold, Imad Salhab, Hyun-Duck Nah, Sayantani Sinha, Paul C Billings, Maurizio Pacifici, Eiki Koyama
Condylar articular cartilage in mouse temporomandibular joint develops from progenitor cells near the articulating surface that proliferate, undergo chondrogenesis and mature into hypertrophic chondrocytes. However, it remains unclear how these processes are regulated, particularly postnatally. Here we focused on the apical polymorphic layer rich in progenitors and asked whether the phenotype and fate of the cells require signaling by Indian hedgehog (Ihh) previously studied in developing long bones. In condyles in newborn mice, the apical polymorphic/progenitor cell layer was ~10 cell layer-thick and expressed the articular matrix marker Tenascin-C (Tn-C), and the underlying thick cell layer expressed Tn-C as well as the chondrogenic master regulator Sox9...
February 12, 2018: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29446485/effects-of-glucosamine-supplements-on-painful-temporomandibular-joint-osteoarthritis-a-systematic-review
#4
REVIEW
Gilberto Melo, Elora Casett, Juliana Stuginski-Barbosa, Eliete Neves da Silva Guerra, Daniel Araujo Fernandes, André Luís Porporatti, Carlos Flores-Mir, Graziela De Luca Canto
OBJECTIVE: To systematically review the literature for studies that assessed the effects of glucosamine supplements (GS) on pain and maximum mouth opening (MMO) restriction compared to other therapies, placebo, or no intervention on painful temporomandibular joint osteoarthritis (TMJ OA). METHODS: Randomized controlled trials were selected in a two-phase process. Seven electronic databases, in addition to three grey literature databases, were searched. Risk of bias was assessed using the Cochrane Collaboration's tool for assessing risk of bias in randomized trials...
February 15, 2018: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29445986/pain-threshold-and-temporomandibular-function-in-systemic-sclerosis-comparison-with-psoriatic-arthritis
#5
Antonino Lo Giudice, Idona Brewer, Rosalia Leonardi, Neal Roberts, Gianluca Bagnato
The aim of the study was to evaluate whether a reduced pain threshold is associated with increased temporomandibular dysfunction in systemic sclerosis (SSc) compared to psoriatic arthritis (PsA) and healthy controls. Ninety subjects participated in the study (30 SSc, 30 PsA, and 30 healthy controls). The Helkimo index was used to evaluate temporomandibular dysfunction. Digital palpation was performed at the temporomandibular joint (TMJ) surface and at the superficial masseter muscle (SMM) and pain intensity was recorded on a visual analog scale (VAS), while pain pressure threshold (PPT) was measured at the same sites through a pressure algometer...
February 14, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29439762/the-treatment-of-temporomandibular-joint-dislocation
#6
Ulla Prechel, Peter Ottl, Oliver M Ahlers, Andreas Neff
BACKGROUND: The estimated incidence of temporomandibular joint dislocation in Germany is at least 25/100 000 per year. A correct diagnosis and the initiation of appropriate treatment without delay are essential if permanent damage to the joint is to be avoided. METHODS: This review is based on pertinent publications retrieved by a systematic search in the PubMed, Cochrane, Embase, and ZB Med databases. RESULTS: The initial search yielded 24 650 hits; duplicates were removed and 136 studies were chosen for further analysis...
February 2, 2018: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/29433767/alloplastic-temporomandibular-joint-replacement-systems-a-systematic-review-of-their-history
#7
REVIEW
N De Meurechy, M Y Mommaerts
This systematic review provides an overview of the historical evolution of the prosthetic temporomandibular joint and addresses the challenges and complications faced by engineers and surgeons, in an effort to shed light on why only a few systems remain available. A better understanding of the history of temporomandibular joint prostheses might also provide insights into the origin of the negative public opinion of the prosthesis, which is based on outdated information. A computerized search using the PubMed Central, ScienceDirect, Wiley Online, Ovid, and Cochrane Library databases was performed following the PRISMA guidelines...
February 9, 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29425970/the-therapeutic-potential-of-cystathionine-gamma-lyase-in-temporomandibular-inflammation-induced-orofacial-hypernociception
#8
Bruna M Santos, Emanuela G Garattini, Luiz G S Branco, Christie R A Leite-Panissi, Glauce C Nascimento
Hydrogen sulfide (H2S) is an endogenous neuromodulator produced mainly by the enzyme cystathionine gamma-lyase (CSE) in peripheral tissues. A pronociceptive role of endogenously produced H2S has been previously reported by our group in a model of orofacial inflammatory pain. Using the established persistent orofacial pain rat model induced by complete Freund's adjuvant (CFA) injection into temporomandibular joint (TMJ), we have now investigated the putative role of endogenous H2S modulating hypernociceptive responses...
February 6, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29422472/evaluation-of-hemoglobin-concentration-and-hematocrit-values-in-temporomandibular-joint-ankylosis-patients-in-comparison-to-nonankylosed-patients
#9
Deepinder Singh, Guneet Kaur, Dipanshu Bakshi, Jasjit Sahota, Ambika Thakur, Shekhar Grover
AIM: The aim of this study is to find if there is any correlation between the hematological parameters and temporomandibular joint (TMJ) ankylosis and severity of the disease in such patients when compared with the nonankylosed patients. MATERIALS AND METHODS: A total of 70 patients with age ranging from 10 to 40 years were included in the study after excluding the subjects according to the inclusion criteria. We categorized the subjects into two major groups: group I: control (nonankylosed/ healthy subjects) and group II: study group (ankylosed subjects) with each group containing 35 subjects (n = 35) respectively...
February 1, 2018: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29422314/dental-pathology-of-the-grey-fox-urocyon-cinereoargenteus
#10
J V Evenhuis, I Zisman, P H Kass, F J M Verstraete
Museum specimens from 637 grey foxes (Urocyon cinereoargenteus) were examined macroscopically according to predefined criteria. Of the 637 specimens, 569 were included for further examination. The study population included more males (n = 261, 45.9%) than females (n = 196, 34.4%) and animals of unknown sex (n = 112, 19.7%). Additionally, 481 (84.5%) adults, 67 (11.8%) young adults and 21 (3.7%) individuals of unknown age comprised the study population, with juveniles and neonates excluded. The number of teeth present for examination was 23,066 (96...
January 2018: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/29420573/prevalence-of-diagnosed-temporomandibular-disorders-a-cross-sectional-study-in-brazilian-adolescents
#11
Fernanda Mara de Paiva Bertoli, Carolina Dea Bruzamolin, Eduardo Pizzatto, Estela Maris Losso, João Armando Brancher, Juliana Feltrin de Souza
BACKGROUND: The prevalence of signs and symptoms of temporomandibular disorders (TMD) increases during adolescence and adulthood. Few studies have examined TMD prevalence in Brazilian adolescents. AIM: To investigate the prevalence of TMD in Brazilian adolescents. METHODS: A representative population-based sample of 934 adolescents (10-14-years-old) was examined. TMD screening was performed using a questionnaire by the American Academy of Orofacial Pain...
2018: PloS One
https://www.readbyqxmd.com/read/29420457/ultrasonography-in-the-diagnosis-of-temporomandibular-disorders-a-meta-analysis
#12
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/29410576/resolution-of-temporomandibular-joint-dysfunction-tmjd-by-correcting-a-lateral-head-translation-posture-following-previous-failed-traditional-chiropractic-therapy-a-cbp%C3%A2-case-report
#13
Jason O Jaeger, Paul A Oakley, Robert R Moore, Edward P Ruggeroli, Deed E Harrison
[Purpose] To present the case of the resolution of right temporomandibular joint dysfunction (TMJD) following the correction of a right lateral head translation posture. [Subject and Methods] A 24 year old female reported facial pain and jaw clicking in the right TMJ. Radiography revealed a 19 mm right head (shift) translation posture. TMJ vibration analysis showed characteristic abnormalities for the right TMJ. The patient was treated with CBP® technique mirror image® left sided exercises, and traction methods as well as spinal manipulative therapy (SMT)...
January 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29407498/no-association-between-types-of-unilateral-mandibular-condylar-abnormalities-and-facial-asymmetry-in-orthopedic-treated-patients-with-juvenile-idiopathic-arthritis
#14
Peter Bangsgaard Stoustrup, Nicole Ahlefeldt-Laurvig-Lehn, Kasper Dahl Kristensen, Linda Z Arvidsson, Marinka Twilt, Paolo M Cattaneo, Annelise Küseler, Anne Estmann Christensen, Troels Herlin, Thomas Klit Pedersen
INTRODUCTION: Dentofacial asymmetries are often observed in patients with juvenile idiopathic arthritis (JIA) and temporomandibular joint (TMJ) involvements. The aim of this split-face study was to associate types of radiologic TMJ abnormalities with the degree of dentofacial asymmetry in patients with unilateral TMJ involvements assessed with cone-beam computed tomography. METHODS: Forty-seven JIA patients and 19 nonarthritic control subjects were included in the study...
February 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29406260/skull-base-erosion-resulting-from-primary-tumors-of-the-temporomandibular-joint-and-skull-base-region-our-classification-and-reconstruction-experience
#15
Min-Jie Chen, Chi Yang, Ji-Si Zheng, Guo Bai, Zi-Xiang Han, Yi-Wen Wang
PURPOSE: We sought to introduce our classification and reconstruction protocol for skull base erosions in the temporomandibular joint and skull base region. PATIENTS AND METHODS: Patients with neoplasms in the temporomandibular joint and skull base region treated from January 2006 to March 2017 were reviewed. Skull base erosion was classified into 3 types according to the size of the defect. RESULTS: We included 33 patients, of whom 5 (15...
January 3, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29406255/the-effect-of-exercise-on-range-of-movement-and-pain-after-temporomandibular-joint-arthrocentesis
#16
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
https://www.readbyqxmd.com/read/29402731/electromagnetic-navigated-condylar-positioning-after-high-oblique-sagittal-split-osteotomy-of-the-mandible-a-guided-method-to-attain-pristine-temporomandibular-joint-conditions
#17
Moritz Berger, Igor Nova, Sebastian Kallus, Oliver Ristow, Urs Eisenmann, Hartmut Dickhaus, Michael Engel, Christian Freudlsperger, Jürgen Hoffmann, Robin Seeberger
OBJECTIVES: Reproduction of the exact preoperative proximal-mandible position after osteotomy in orthognathic surgery is difficult to achieve. This clinical pilot study evaluated an electromagnetic (EM) navigation system for condylar positioning after high-oblique sagittal split osteotomy (HSSO). STUDY DESIGN: After HSSO as part of 2-jaw surgery, the position of 10 condyles was intraoperatively guided by an EM navigation system. As controls, 10 proximal segments were positioned by standard manual replacement...
December 29, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29402729/radiologic-correlation-between-the-thickness-of-the-roof-of-the-glenoid-fossa-and-that-of-the-bony-covering-of-the-superior-semicircular-canal
#18
Rafael Crovetto-Martínez, Carlos Vargas, Iñigo Lecumberri, Amaia Bilbao, Miguel Crovetto-De la Torre, Jaime Whyte-Orozco
OBJECTIVES: Dehiscence of the superior semicircular canal (SSC) has been associated with alteration of the temporomandibular joint, although data explaining this association are lacking. The present study examined the correlations between the presence of dehiscences and thickness of the bone covering the SSC and the roof of the glenoid fossa (RGF). STUDY DESIGN: Computed tomography was used in a cross-sectional analysis of the presence of dehiscences and thickness of the bone overlying the SCC and RGF in 156 temporal bones of 78 patients...
December 29, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29400370/high-resolution-ultrasonography-in-assessing-temporomandibular-joint-disc-position
#19
Daniel Talmaceanu, Lavinia Manuela Lenghel, Nicolae Bolog, Roxana Popa Stanila, Smaranda Buduru, Daniel Corneliu Leucuta, Horatiu Rotar, Mihaela Baciut, Grigore Baciut
AIMS: The purpose of this study was to determine the diagnostic value of high-resolution ultrasonography (US) in temporomandibular joint (TMJ) disc displacements. MATERIALS AND METHODS: A number of 74 patients (148 TMJs) with signs and symptoms of TMJ disorders, according to the Research Diagnostic Criteria for Temporomandibular Disorders, were included in this study. All patients received US and magnetic resonance imaging (MRI) of both TMJs 1 to 5 days after the clinical examination...
February 4, 2018: Medical Ultrasonography
https://www.readbyqxmd.com/read/29400140/scaffold-based-tmj-tissue-regeneration-in-experimental-animal-models-a-systematic-review
#20
Espen Helgeland, Siddharth Shanbhag, Torbjorn O Pedersen, Kamal Mustafa, Annika Rosén
Reconstruction of degenerated temporomandibular joint (TMJ) structures remains a clinical challenge. Tissue engineering (TE) is a promising alternative to current treatment options where the TMJ is either left without functional components, or replaced with autogenous, allogenic, or synthetic grafts. The objective of this systematic review was to answer the focused question: in experimental animal models, does the implantation of biomaterial scaffolds loaded with cells and/or growth factors (GFs) enhance regeneration of the discal or osteochondral TMJ tissues, compared to scaffolds alone, without cells or GFs? Following PRISMA (Preferred Reporting Items for Systematic reviews and Meta-Analysis) guidelines, electronic databases were searched for relevant controlled preclinical in vivo studies...
February 5, 2018: Tissue Engineering. Part B, Reviews
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