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https://www.readbyqxmd.com/read/28936895/a-study-on-the-post-radiotherapy-changes-of-temporomandibular-joint-in-nasopharyngeal-carcinoma-patients
#1
Vincent W C Wu, Michael Tc Ying, Dora Lw Kwong
BACKGROUND: Radiation induced trismus, which is resulted from damage of the temporo-mandibular joint (TMJ), is one of the common late complications in nasopharyngeal carcinoma (NPC) patients after radical radiotherapy. This study investigated the radiation induced TMJ changes using ultrasonography in post-radiotherapy (post-RT) NPC patients. METHODS: 114 NPC patients, who had completed radiotherapy for more than four years, were assessed with the maximum incisal distance (MID) and ultrasonography examination of TMJ from which the thickness of the joint disc (MDT), the condyle irregularity (CI), joint vascularity (JV) and relative muscle echogenicity (RME) were assessed...
September 22, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28936285/clinical-and-radiological-outcome-of-arthrocentesis-followed-by-autologous-blood-injection-for-treatment-of-chronic-recurrent-temporomandibular-joint-dislocation
#2
Jinesh Patel, Kumar Nilesh, M I Parkar, Alpesh Vaghasiya
BACKGROUND: This study was conducted to evaluate the functional outcome and MRI findings of arthrocentsis followed by autologous blood injection (ABI) into the joint space for management of chronic recurrent TMJ dislocation. MATERIAL AND METHODS: Total ten patients with bilateral chronic recurrent condylar dislocation were included in the study. Arthrocentesis of both TMJ was performed on each patient, followed by the injection of 2 ml of autologous blood into the superior joint compartment and 1 ml onto the outer surface of the joint capsule...
August 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28930927/oral-behaviors-and-parafunctions-comparison-of-temporomandibular-dysfunction-patients-and-controls
#3
Marijus Leketas, Viktoras Šaferis, Ričardas Kubilius, Gabriele Cervino, Ennio Bramanti, Marco Cicciù
The aim of this study is to evaluate the frequency of oral behaviors in patients with temporomandibular disorders (TMD) and a control group without TMD.In this baseline case-control study, 260 controls and 260 subjects with TMD completed the oral behaviors checklist defined as a "self-report scale for identifying and quantifying the frequency of jaw overuse behavior" and underwent clinical examinations using the DC/TMJ international examination form (version May 12, 2013). Relationships of oral parafunctions' frequencies between groups were examined...
September 19, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28919368/a-comparison-of-clinical-follow-up-of-different-total-temporomandibular-joint-replacement-prostheses-a-systematic-review-and-meta-analysis
#4
REVIEW
Luxiang Zou, Dongmei He, Edward Ellis
PURPOSE: There are different total temporomandibular joint (TMJ) prostheses on the market but no comparison of their efficacy. The purpose of this meta-analysis was to evaluate the effectiveness of different TMJ replacement (TJR) systems. MATERIALS AND METHODS: A systematic review and meta-analysis was performed using the PubMed, Embase, Medline, and Cochrane Library search engines in May 2017 to identify qualified studies. Outcome measurements were changes in maximal incisal opening (MIO), pain, dietary limitations, and functional deficiencies from before to after TJR...
August 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28918182/uk-temporomandibular-joint-replacement-database-a-report-on-one-year-outcomes
#5
R Elledge, A Attard, J Green, D Lowe, S N Rogers, A J Sidebottom, B Speculand
Alloplastic temporomandibular joint (TMJ) replacements are increasingly subspecialised, and supraregional centres that treat sufficient numbers to ensure high standards are emerging. Having recently reported the introduction of a national TMJ joint replacement database that is endorsed by the British Association of TMJ Surgeons (BATS), we now present the first-year outcomes. This was a review of all data in the BATS National Case Registration of TMJ Replacement as of June 2014. A total of 252 one-year outcome records were available...
September 13, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28901435/differential-regulation-by-ifn%C3%A2-%C3%AE-on-tnf%C3%A2-%C3%AE-%C3%A2-induced-chemokine-expression-in-synovial-fibroblasts-from-temporomandibular-joint
#6
Kouji Ohta, Takako Naruse, Hiroki Kato, Yoko Ishida, Takayuki Nakagawa, Shigehiro Ono, Hideo Shigeishi, Masaaki Takechi
Tumor necrosis factor (TNF)‑α and interferon (IFN)‑γ, are inflammatory cytokines in the synovial fluid of patients with temporomandibular joint disorder (TMD). However, it remains unknown whether they participate in the regulation of various chemokine expression levels associated with TMD. The effects of TNF‑α and IFN‑γ on the expression of several different inflammatory chemokines, including interleukin (IL)‑8, C‑X‑C motif chemokine ligand (CXCL)1, C‑C motif chemokine ligand (CCL)20, CXCL9, CXCL10, and CXCL11 in synovial fibroblasts obtained from the temporomandibular joint (TMJ) were examined...
September 7, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28886893/the-action-of-anti-inflammatory-agents-in-healthy-temporomandibular-joint-synovial-tissues-is-sex-dependent
#7
S R Figueroba, M F Groppo, D Faibish, F C Groppo
This study evaluated the effects of dexamethasone, parecoxib, and glucosamine on cartilage thickness and cytokine levels in the temporomandibular joint (TMJ). Forty-eight rats (24 female, 24 male) were assigned to four treatments administered once daily for 7 days: control (saline intramuscularly), parecoxib (0.3mg/kg intramuscularly), dexamethasone (0.1mg/kg intramuscularly), and glucosamine (80mg/kg orally). The thickness of TMJ cartilage and levels of four cytokines were measured. Median cartilage thickness was higher in males than in females in the control (253...
September 5, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28872507/protection-of-the-temporomandibular-joint-during-syndromic-mandibular-distraction-with-a-novel-condylar-offloading-device
#8
Sagar T Mehta, Neal Moores, Duane Yamashiro, Faizi Siddiqi, Barbu Gociman
Mandibular distraction for severe micrognathia in syndromic patients often leads to temporomandibular joint (TMJ) ankylosis, which requires further interventions to regain joint motion. The increased incidence of postdistraction ankylosis is likely related to increased prevalence of preoperative joint pathology in syndromic micrognathic patients. Previous studies have demonstrated that offloading the pressure on the condyle during the distraction process can prevent such TMJ pathology. In this article, the authors describe a successful new method for offloading the condyle to prevent postdistraction ankylosis using an external TMJ offloading device...
September 1, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28868987/tmj-symptoms-reduce-chewing-amplitude-and-velocity-and-increase-variability
#9
John C Radke, Greg J Kamyszek, Robert S Kull, Gerardo R Velasco
OBJECTIVE: The null hypothesis was that mandibular amplitude, velocity, and variability during gum chewing are not altered in subjects with temporomandibular joint (TMJ) internal derangements (ID). METHODS: Thirty symptomatic subjects with confirmed ID consented to chew gum on their left and right sides while being tracked by an incisor-point jaw tracker. A gender and age matched control group (p > 0.67) volunteered to be likewise recorded. Student's t-test compared the ID group's mean values to the control group...
September 4, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/28866048/subcutaneous-lipoatrophy-and-skin-depigmentation-secondary-to-tmj-intra-articular-corticosteroid-injection
#10
Nicolás Patricio Skármeta, Fernando Ariel Hormazábal, Juan Alvarado, Ana Maria Rodriguez
Chronic orofacial pain is a complex multidimensional experience that produces disability and impairment of normal mandibular function. Overall estimations of chronic orofacial pain prevalence are 7 to 11% of the general population. Temporomandibular disorders (TMDs) are one of the most prevalent chronic orofacial pain conditions, with temporomandibular joint (TMJ) arthralgia accounted for 30.1% of TMD patients. Interventional procedures are often used in pain and palliative medicine to achieve reasonable and cost-effective pain relief...
August 5, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28865771/can-skull-form-predict-the-shape-of-the-temporomandibular-joint-a-study-using-geometric-morphometrics-on-the-skulls-of-wolves-and-domestic-dogs
#11
Stefan Curth, Martin S Fischer, Kornelius Kupczik
The temporomandibular joint (TMJ) conducts and restrains masticatory movements between the mammalian cranium and the mandible. Through this functional integration, TMJ morphology in wild mammals is strongly correlated with diet, resulting in a wide range of TMJ variations. However, in artificially selected and closely related domestic dogs, dietary specialisations between breeds can be ruled out as a diversifying factor although they display an enormous variation in TMJ morphology. This raises the question of the origin of this variation...
September 1, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28864647/isolated-arthritis-of-the-temporomandibular-joint-as-the-initial-manifestation-of-juvenile-idiopathic-arthritis
#12
Boris Hügle, Lynn Spiegel, Julia Hotte, Stefan Wiens, Troels Herlin, Randy Q Cron, Matthew L Stoll, Surabhi Vinod, Peter Stoustrup, Thomas Klit Pedersen, Marinka Twilt
OBJECTIVE: To describe characteristics of patients with juvenile idiopathic arthritis (JIA) presenting with isolated arthritis of the temporomandibular joints (TMJ). METHODS: Patients with JIA with isolated TMJ arthritis from 4 large tertiary pediatric rheumatology centers were included. Demographic and clinical data were analyzed using descriptive statistics. RESULTS: Fifty-five patients were identified (65% bilateral presentation). Six patients developed arthritis in other joints (median time 6 mos); 4 patients developed uveitis, all prior to arthritis...
September 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28862770/glucosamine-oral-administration-as-an-adjunct-to-hyaluronic-acid-injection-in-treating-temporomandibular-joint-osteoarthritis
#13
Xiao Cen, Yan Liu, Shasha Wang, Xianrui Yang, Zongdao Shi, Xinhua Liang
OBJECTIVE: To investigate the therapeutic effect of oral glucosamine (GS) as an adjunct to hyaluronic acid (HA) injection on patients with temporomandibular joint osteoarthritis (TMJ OA). METHODS: In this clinical trial, 136 participants, diagnosed as TMJ OA clinically and radiographically, were enrolled and randomized into two groups (Group GS+HA: oral GS+HA injection; Group placebo+HA: oral placebo+HA injection). Pain, maximum inter-incisal mouth opening (MMO), the levels of IL-1β, IL-6, and TGF-β in TMJ synovial were defined as the outcome measurements and conducted before operation, and at 1-month, 1-year follow-up...
September 1, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28861285/pattern-analysis-of-patients-with-temporomandibular-disorders-resulting-from-unilateral-mastication-due-to-chronic-periodontitis
#14
Hye-Mi Jeon, Yong-Woo Ahn, Sung-Hee Jeong, Soo-Min Ok, Jeomil Choi, Ju-Youn Lee, Ji-Young Joo, Eun-Young Kwon
PURPOSE: The purpose of the present study was to perform a pattern analysis in patients with temporomandibular disorder (TMD) resulting from unilateral mastication due to chronic periodontitis. METHODS: Thirty participants with signs or symptoms of TMD who engaged in unilateral mastication due to periodontitis-related discomfort (test group) were selected. Another 30 subjects exhibiting signs or symptoms of TMD resulting from unilateral mastication not due to chronic periodontitis (control group) were also recruited...
August 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28858275/-botulinus-toxin-in-complex-treatment-of-myofacial-pain-syndrome
#15
S N Fedotov, M A Gerasimova, S D Shorokhov, A I Tischenko
The aim of the study was to assess the efficacy of type A Botulinus toxin (BTA) in pain release by TMJ functional pain disorders. The study included 211 patients with TMJ functional pain disorder (20.4% males and 79.6% females; mean age 45.3 years). The patients underwent clinical examination and bioelectric activity assessment of masticatory muscles by electromyography (EMG). EMG specters of 20 healthy volunteers with intact dental arches served as a control. After examination BTA was injected in muscular pain trigger points...
2017: Stomatologii︠a︡
https://www.readbyqxmd.com/read/28855535/evaluation-of-the-condyle-remodeling-after-lateral-arthroplasty-in-growing-children-with-temporomandibular-joint-ankylosis
#16
XiuJuan Yang, Chuan Lu, MinJun Dong, DongMei He, Chi Yang, YiHui Hu
Temporomandibular joint (TMJ) ankylosis in growing patients can cause both mouth opening limitation and jaw bone deformity. Lateral arthroplasty (LAP) can restore the medially displaced condyle and thus keep its growth potential. But can the condyle grow as normal is unknown. This study was to evaluate the long-term result after LAP in growing children. Patients from 2010 to 2014 were evaluated. Their CT data within 1 week after operation and during at least 1-year follow-ups were measured by ProPlan CMF 1...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28853500/-effect-of-different-oxygen-tension-on-the-cytoskeleton-remodeling-of-goat-temporomandibular-joint-disc-cells
#17
He Xiaolan, Bao Guangjie, Sun Linglu, Zhang Xue, Bao Shanying, Kang Hong
Objective The effect of different oxygen tensions on the cytoskeleton remodeling of goat temporomandibular joint (TMJ) disc cells were investigated. Methods Goat TMJ disc cells were cultured under normoxia (21% O₂) and hypoxia (2%, 4%, and 8% O₂). Toluidine blue, picrosirius red, and type Ⅰ collagen immunocytochemical staining were performed to observe the changes in cell phenotype under different oxygen levels. Immunofluorescent staining and real-time reverse transcription-polymerase chain reaction analysis were then performed to identify actin, tubulin, and vimentin in the cultured disc cells...
August 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28845159/analyzing-menton-deviation-in-posteroanterior-cephalogram-in-early-detection-of-temporomandibular-disorder
#18
Trelia Boel, Ervina Sofyanti, Erliera Sufarnap
INTRODUCTION: Some clinicians believed that mandibular deviation leads to facial asymmetry and it also had a correlation with temporomandibular disorders (TMDs). Posteroanterior (PA) cephalogram was widely reported as a regular record in treating facial asymmetry and craniofacial anomalies. The objective of this study was to analyze the relationship of menton deviation in PA cephalogram with temporomandibular disorders (TMDs) symptoms. MATERIALS AND METHODS: TMJ function was initially screened based on TMD-DI questionnaire...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28844337/temporomandibular-joint-reconstruction-after-condylar-fracture-complication-related-to-osteosynthesis-material
#19
J F C Dantas, J N Nogueira Neto, V A Sarmento, P S F Campos
Total condylar resorption and the failure of bone synthesis material as postoperative complications of condyle fracture are seldom reported in the literature. When these occur, they may severely limit temporomandibular joint (TMJ) function. In such cases, a reconstruction of the joint is indicated, which can be achieved by means of an alloplastic prosthesis. This article reports a rare case of impaction of osteosynthesis material in the region of the base of the skull associated with a mandibular condyle fracture treated with rigid internal fixation, which resulted in complications...
August 22, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28843404/morphometric-analysis-of-temporomandibular-joint-elements
#20
Audrey E Paglio, Aaron P Bradley, R Shane Tubbs, Marios Loukas, Piotr B Kozlowski, Anthony C Dilandro, Yujiro Sakamoto, Joe Iwanaga, Cameron Schmidt, Anthony V D'Antoni
PURPOSE: To study the morphology of temporomandibular joint (TMJ) elements and examine the feasibility of a novel biofidelic articular disc casting technique. METHODS: 18 formalin-fixed cadavers (77.8% female, 22.2% male) with mean (SD) death age of 71.9 (13.7) years were used for this study. In each specimen the masseter muscle, mandibular ramus, and articular disc were dissected bilaterally and measured for length, width, and thickness. All anatomic measurements were made using a digital slide caliper (Hawk Inc...
July 25, 2017: Journal of Cranio-maxillo-facial Surgery
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