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https://www.readbyqxmd.com/read/29223613/18f-naf-pet-ct-for-the-evaluation-of-temporomandibular-joint-disorder
#1
M S Suh, S H Park, Y-K Kim, P-Y Yun, W W Lee
AIM: To investigate the usefulness of a quantitative parameter (maximum standardised uptake value [SUVmax]) of 18F-sodium fluoride (NaF) positron-emission tomography (PET)/computed tomography (CT) for the evaluation of temporomandibular joint (TMJ) disorder (TMD). MATERIALS AND METHODS: Seventy-six TMD patients (male: female=14:62, age=40.3±17.1 years, bilateral: unilateral=40:36) with 152 TMJs were enrolled. The 18F-NaF PET/CT parameter (SUVmax) was compared with the presence of TMJ arthralgia (arthralgic=86, non-arthralgic=66) and clinical subtypes based on the Research Diagnostic Criteria for TMD Axis I (TMD osteoarthritis=49, non-TMD osteoarthritis=67, and asymptomatic TMJ=36)...
December 6, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29217971/evaluation-of-the-relationship-between-the-occlusion-parameters-and-symptoms-of-the-temporomandibular-joint-disorder
#2
Agnė Dzingutė, Gaivilė Pileičikienė, Aušra Baltrušaitytė, Gediminas Skirbutis
Background: The aetiology of temporomandibular joint disorders (TMD) is multifactorial, whereas occlusal disharmony is one of the predisposing factors. Researchers still discuss the relation between occlusion and TMD. Objective: The study aims to investigate the relation between static occlusal parameters and TMD clinical symptoms using T-Scan II analysis system. Material and methods: The sample consisted of 44 persons divided into the treatment group of 20 TMD patients and the control group of 24 subjects without TMD...
2017: Acta Medica Lituanica
https://www.readbyqxmd.com/read/29216476/is-there-a-role-for-oxidative-stress-in-temporomandibular-joint-disorders
#3
Canser Yilmaz Demir, Omer Faruk Kocak, Nazim Bozan, Muhammet Eren Ersoz, Halit Demir
PURPOSE: Data on the role of oxidative stress in temporomandibular joint (TMJ) disorders are limited. This study compared serum levels of oxidative stress indicators and antioxidant enzymes in patients with TMJ disorders. PATIENTS AND METHODS: In this prospective study, patients with TMJ disorders and healthy controls were compared for descriptive characteristics (age and gender) and serum levels of malondialdehyde (MDA), an oxidative stress marker, and antioxidant enzymes catalase (CAT), glutathione (GSH), and superoxide dismutase (SOD)...
November 21, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29215692/chondroid-tenosynovial-giant-cell-tumor-of-the-temporomandibular-joint-a-rare-case-report
#4
Ana Lia Anbinder, Barbara Maria Corrêa Geraldo, Rubens Guimarães, Débora Lima Pereira, Oslei Paes de Almeida, Yasmin Rodarte Carvalho
Tenosynovial giant cell tumor of diffuse type (TGCT-d) or pigmented villonodular synovitis (PVNS) is a locally aggressive lesion that mostly affects the joints of long bones. Chondroid tenosynovial giant cell tumor (CTGCT) or PVNS with chondroid metaplasia is a rare distinct subset of synovial tumors that has a predilection for the TMJ. We report a rare case of CTGCT in the TMJ, initially misdiagnosed as temporomandibular disorder (TMD). A 51-year-old woman was referred to the surgeon with the chief complaint of TMJ pain for 5 years and a past history of an unsuccessful TMD treatment...
September 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29209867/non-specific-effects-and-clusters-of-women-with-painful-tmd-responders-and-non-responders-to-lllt-double-blind-randomized-clinical-trial
#5
Laís Valencise Magri, Vinícius Almeida Carvalho, Flávia Cássia Cabral Rodrigues, César Bataglion, Christie Ramos Andrade Leite-Panissi
The aim was to analyze the non-specific effects (placebo, spontaneous remission, and regression to the mean) of the low-level laser therapy (LLLT) in women with myofascial pain (painful temporomandibular disorder (TMD)), as well as to differentiate between responders and non-responder clusters to active and placebo LLLT according to the anxiety levels, salivary cortisol, use of oral contraceptives, and premenstrual period. Sixty-four women diagnosed with myofascial pain (Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD)) were included, divided into laser (n = 20), placebo group (n = 21), and 23 controls (without treatment (WT))...
December 5, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29199605/modeling-mesenchymal-stem-cells-in-tmj-rheumatoid-arthritis-and-osteoarthritis-therapy
#6
Nedime Serakinci, Gokce Savtekin
Stem cells have self-renewal capacity and an ability to differentiate into particular cell types generating mature cells. Mesenchymal stem cells (MSCs) have a significant role in tissue homeostasis, which leads into tissue regeneration. MSCs are rare pluripotent cells supporting hematopoietic and mesenchymal cell lineages. MSCs are also believed to have therapeutic power over temporomandibular joint (TMJ) disorders (TMDs). The most common type of TMD is articular disc displacement, which induces progressive degenerative changes...
2017: Critical Reviews in Eukaryotic Gene Expression
https://www.readbyqxmd.com/read/29181723/electrical-conductivity-method-to-determine-sexual-dimorphisms-in-human-temporomandibular-disc-fixed-charge-density
#7
Gregory J Wright, Matthew C Coombs, Yongren Wu, Brooke J Damon, Thierry H Bacro, Michael J Kern, Xiaojing Chen, Hai Yao
To investigate potential mechanisms associated with the increased prevalence of temporomandibular joint (TMJ) disorders among women, the study objective was to determine sex-dependent and region-dependent differences in fixed charge density (FCD) using an electrical conductivity method. Seventeen TMJ discs were harvested from nine males (77 ± 4 years) and eight females (86 ± 4 years). Specimens were prepared from the anterior band, posterior band, intermediate zone, medial disc and lateral disc. FCD was determined using an electrical conductivity method, assessing differences among disc regions and between sexes...
November 27, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29173864/effect-of-temporomandibular-joint-articular-disc-repositioning-on-anterior-open-bite-malocclusion-an-orthodontic-surgical-approach
#8
Jonas Bianchi, Ary Dos Santos Pinto, Jaqueline Ignácio, Daniel Patrick Obelenis Ryan, João Roberto Gonçalves
An anterior open bite is a challenge to orthodontic treatment; it has a multifactorial etiology and a wide range of intervention options. Temporomandibular joint (TMJ) disorders are a risk factor for the development of malocclusions such as the anterior open bite, especially in patients who have TMJ osteoarthritis with disc displacement. Articular disc repositioning surgery is an available option for treating this pathology, and it contributes to maintaining the condyles in a more stable position. The aim of this article was to report the case of a 20-year-old woman diagnosed with anterior open bite and TMJ osteoarthritis with bilateral disc displacement...
December 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29164651/jaw-closing-movement-and-sex-differences-in-temporomandibular-joint-energy-densities
#9
Luigi M Gallo, Nicolas Fankhauser, Yoly M Gonzalez, Hongzeng Liu, Ying Liu, Jeffrey C Nickel, Laura R Iwasaki
Energy densities (ED, mJ/mm(3) ) quantify mechanical work imposed on articular cartilages during function. This cross-sectional study examined differences in temporomandibular joint (TMJ) ED during asymmetric versus symmetric jaw closing in healthy females versus males. ED component variables were tested for differences between and within sexes for two types of jaw closing. Seventeen female and 17 male subjects gave informed consent to participate. Diagnostic Criteria for Temporomandibular Disorders and images (magnetic resonance (MR), computed tomography) were used to confirm healthy TMJ status...
November 21, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29153236/nonsurgical-management-of-pediatric-temporomandibular-joint-dysfunction
#10
REVIEW
Steven John Scrivani, Shehryar Nasir Khawaja, Paula Furlan Bavia
Temporomandibular disorders (TMD) are a subgroup of craniofacial pain problems involving the temporomandibular joint (TMJ), masticatory muscles, and associated head and neck musculoskeletal structures. These disorders are subclassified into TMJ articular disorders and masticatory muscle disorders. Patients with TMD most commonly present with pain, restricted or asymmetric mandibular motion, and TMJ sounds during mandibular movements. The prevalence tends to increase with age. Management of TMJ articular disorders consists of a combination of patient education, home-care plan, biobehavioral therapy, physical therapy, orthotic jaw appliance therapy, pharmacotherapy, and/or surgery...
February 2018: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/29127312/progesterone-attenuates-temporomandibular-joint-inflammation-through-inhibition-of-nf-%C3%AE%C2%BAb-pathway-in-ovariectomized-rats
#11
Xin-Tong Xue, Xiao-Xing Kou, Chen-Shuang Li, Rui-Yun Bi, Zhen Meng, Xue-Dong Wang, Yan-Heng Zhou, Ye-Hua Gan
Sex hormones may contribute to the symptomatology of female-predominant temporomandibular disorders (TMDs) inflammatory pain. Pregnant women show less symptoms of TMDs than that of non-pregnant women. Whether progesterone (P4), one of the dominant sex hormones that regulates multiple biological functions, is involved in symptoms of TMDs remains to be explored. Freund's complete adjuvant were used to induce joint inflammation. We evaluated the behavior-related and histologic effects of P4 and the expression of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6 in the synovial membrane...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29121815/preclinical-animal-models-for-temporomandibular-joint-tissue-engineering
#12
Alejandro Almarza, Bryan Brown, Boaz Arzi, David Faustino Ângelo, William L Chung, Stephen F Badylak, Michael Scott Detamore
There is a paucity of in vivo studies that investigate the safety and efficacy of temporomandibular joint (TMJ) tissue regeneration approaches, in part due to the lack of established animal models. Review of disease models for study of the TMJ is presented herein with an attempt to identify relevant preclinical animal models for TMJ tissue engineering, with emphasis on the disc and condyle. Although degenerative joint disease models have been mainly performed on mice, rats, and rabbits, pre-clinical regeneration approaches must employ larger animal species...
November 9, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/29112190/jaw-biodynamic-data-for-24-patients-with-chronic-unilateral-temporomandibular-disorder
#13
José López-Cedrún, Urbano Santana-Mora, María Pombo, Amaya Pérez Del Palomar, Víctor Alonso De la Peña, María Jesús Mora, Urbano Santana
This study assessed 24 adult patients, suffering from severe chronic unilateral pain diagnosed as temporomandibular joint (TMJ) disorder (TMD). The full dentate patients had normal occlusion and had never received an occlusal therapy, i.e., were with natural dental evolution/maturation. The following functional and dynamic factors were assessed: (1) chewing function; (2) TMJ remodeling or the condylar path (CP); and (3) lateral jaw motion or lateral guidance (LG). CPs were assessed using conventional axiography, and LG was assessed by K7 jaw tracking...
November 7, 2017: Scientific Data
https://www.readbyqxmd.com/read/29073363/selective-role-of-discoidin-domain-receptor-2-in-murine-temporomandibular-joint-development-and-aging
#14
C Ge, F Mohamed, A Binrayes, S Kapila, R T Franceschi
Temporomandibular joint (TMJ) disorders are often associated with development of osteoarthritis-like changes in the mandibular condyle. Discoidin domain receptor 2 (DDR2), a collagen receptor preferentially activated by type I and III collagen found in the TMJ and other fibrocartilages, has been associated with TMJ degeneration, but its role in normal joint development has not been previously examined. Using Ddr2 LacZ-tagged mice and immunohistochemistry, we found that DDR2 is preferentially expressed and activated in the articular zone of TMJs but not knee joints...
October 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/29072541/temporomandibular-clinical-exploration-in-italian-adolescents
#15
Simona Tecco, Alessandro Nota, Silvia Caruso, Jasmina Primozic, Giuseppe Marzo, Alberto Baldini, Enrico Felice Gherlone
OBJECTIVE: This study investigated the prevalence of the signs and symptoms of temporomandibular disorders (TMD) among Italian adolescents. METHODS: The data were recorded from 567 subjects (246 males and 321 females; age range 11-19 years), grouped according to age and molar class relationship. RESULTS: Forty-four point one percent of subjects showed at least one sign or symptom of TMD, which were significantly more frequent in the 16-19 year-old group (52...
October 26, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/29071032/comparative-effectiveness-of-low-level-laser-therapy-and-transcutaneous-electric-nerve-stimulation-on-temporomandibular-joint-disorders
#16
Massoud Seifi, Asghar Ebadifar, Sattar Kabiri, Mohammad Reza Badiee, Zahra Abdolazimi, Parisa Amdjadi
Introduction: Temporomandibular joint disorders (TMDs) are the most common source of pain on the face. There are multiple etiologies, and several types of treatment have been reported. The use of non-invasive and reversible therapies in the treatment of such problems is recommended. The present study evaluated the effect of low-level laser (LLL) therapy and transcutaneous electric nerve stimulation (TENS) on TMDs. Methods: In this single-blind study, 40 patients with temporomandibular disorders were randomly divided into four groups: TENS (TENSTem dental), LLL (diode 810 nm CW), shamTENS, and sham-LLL...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29066000/platelet-rich-plasma-for-the-therapeutic-management-of-temporomandibular-joint-disorders-a-systematic-review
#17
REVIEW
M Bousnaki, A Bakopoulou, P Koidis
This systematic review aimed to investigate whether intra-articular injections of platelet-rich plasma (PRP) are beneficial for the treatment of degenerative temporomandibular disorders, such as temporomandibular joint osteoarthritis (TMJ-OA) and disc displacement with osteoarthritic lesions, when compared to other treatments, such as injections of hyaluronic acid (HA) or saline. An electronic search of the MEDLINE and Scopus databases was performed using combinations of the terms "temporomandibular" and "platelet rich plasma", to identify studies reported in English and published up until May 2017...
October 20, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29038631/efficacy-of-temporomandibular-joint-arthrocentesis-with-sodium-hyaluronate-in-the-management-of-temporomandibular-joint-disorders-a-prospective-randomized-control-trial
#18
Harsha Gorrela, J Prameela, G Srinivas, B Vijay Baskar Reddy, Mvs Sudhir, Gururaj Arakeri
PURPOSE: This study was designed to investigate the efficacy of the temporomandibular joint arthrocentesis with and without injection of sodium hyaluronate (SH) in the treatment of temporomandibular joint disorders. PATIENTS AND METHODS: A total of sixty two TMJs in 34 males and 28 females aged 20-65 years comprised the study material. The patients' complaints were limited mouth opening, TMJ pain, and joint noises during function. Patients were randomly divided into 2 groups in which arthrocentesis plus intra-articular injection of sodium hyaluronate was performed in 1 group and only arthrocentesis was performed in the other group...
December 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/29037113/temporomandibular-joint-mr-images-incidental-head-and-neck-findings-and-pathologies
#19
Kaan Orhan, Hakan Avsever, Seçil Aksoy, Umut Seki, Poyzan Bozkurt
OBJECTIVE: To report the number and frequency of incidental findings (IFs) detected during magnetic resonance (MR) imaging screening of the temporomandibular joint (TMJ) and to define related diseases. METHODS: Bilateral TMJ MR images in the sagittal and coronal sections, from 518 patients with TMJ symptoms were evaluated retrospectively. Patients who were diagnosed with IFs were sent for consultation and clarification of the findings. Patient age, gender, IFs, locations, and diseases were classified and noted...
October 17, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/29034269/the-role-of-botulinum-toxin-a-in-treatment-of-temporomandibular-joint-disorders-a-review
#20
REVIEW
Rana Ataran, Ayla Bahramian, Zahra Jamali, Vahid Pishahang, Homayoon Sadeghi Barzegani, Parvin Sarbakhsh, Javad Yazdani
Temporomandibular joint disorders (TMDs) usually present with symptoms and signs such as pain, mandibular movement, dysfunction, or joint sounds. Botulinum toxin type A (BTX-A) is a biologic toxin which inhibits skeletal muscle through hindering the production of acetylcholine in the nerve endings. This toxin is used for the treatment of hyperactivity of lateral pterygoid muscle and TMD symptoms. This comprehensive review aimed to evaluate the effect of BTX-A injections in the lateral pterygoid muscle on treatment of TMDs symptoms...
September 2017: Journal of Dentistry
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