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https://www.readbyqxmd.com/read/28930927/oral-behaviors-and-parafunctions-comparison-of-temporomandibular-dysfunction-patients-and-controls
#1
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/28924361/temporomandibular-dysfunction-stress-and-common-mental-disorder-in-university-students
#2
Viviane Gontijo Augusto, Keity Cristina Bueno Perina, Daniel Silva Gontijo Penha, Daiane Carolina Alves Dos Santos, Valéria Aparecida Souza Oliveira
OBJECTIVE: To evaluate the prevalence of temporomandibular dysfunction (TMD) and its association with perceived stress and common mental disorder (CMD) in academic students. METHODS: This is s transversal observational study conducted at Universidade de Minas Gerais, Divinópolis Unit, in health science courses. To investigate the prevalence of TMD, the anamnestic index by Fonseca was used. Stress was assessed by the perceived stress scale, translated and adapted for the Brazilian population in 2006...
November 2016: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28914539/phonon-assisted-ultrafast-charge-transfer-at-van-der-waals-heterostructure-interface
#3
Qijing Zheng, Wissam A Saidi, Yu Xie, Zhenggang Lan, Oleg V Prezhdo, Hrvoje Petek, Jin Zhao
The van der Waals (vdW) interfaces of two-dimensional (2D) semiconductor are central to new device concepts and emerging technologies in light-electricity transduction where the efficient charge separation is a key factor. Contrary to general expectation, efficient electron-hole separation can occur in vertically stacked transition-metal dichalcogenide heterostructure bilayers through ultrafast charge transfer between the neighboring layers despite their weak vdW bonding. In this report, we show by ab initio nonadiabatic molecular dynamics calculations, that instead of direct tunneling, the ultrafast interlayer hole transfer is strongly promoted by an adiabatic mechanism through phonon excitation occurring on 20 fs, which is in good agreement with the experiment...
September 19, 2017: Nano Letters
https://www.readbyqxmd.com/read/28913603/influence-of-anthropometry-tmd-and-sex-on-molar-bite-force-in-adolescents-with-and-without-orthodontic-needs
#4
Barbara de Lima Lucas, Taís de Souza Barbosa, Paula Midori Castelo, Maria Beatriz Duarte Gavião
PURPOSE: Bite force has been studied as representative of functional indices of mastication and its value may have diagnostic significance in disorders of the musculoskeletal system of facial bones. This study aimed to evaluate bite force in adolescents with and without orthodontic needs considering presence of temporomandibular disorders (TMD) as well as anthropometry: craniofacial dimensions and body mass index (BMI). METHODS: A total of 80 subjects were screened (61 females, 19 males; 18 ± 3 years old)...
September 14, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28902256/class-ii-division-2-subdivision-left-malocclusion-associated-with-anterior-deep-overbite-in-an-adult-patient-with-temporomandibular-disorder
#5
Ivan Toshio Maruo
The orthodontic treatment of patients with chief complaint of temporomandibular disorders (TMD) presents doubtful prognosis, due to the poor correlation between malocclusions and TMDs. The present case report describes the treatment of an adult patient with Angle Class II Division 2 subdivision left malocclusion associated with anterior deep overbite and TMD. This case was presented to the Brazilian Board of Orthodontics and Dentofacial Orthopedics (BBO), as part of the requirements to obtain the title of BBO Diplomate...
July 2017: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/28901579/formation-and-photodynamic-behavior-of-transition-metal-dichalcogenide-nanosheet-fullerene-inorganic-organic-nanohybrids-on-semiconducting-electrodes
#6
Jinseok Baek, Tomokazu Umeyama, Wookjin Choi, Yusuke Tsutsui, Hiroki Yamada, Shu Seki, Hiroshi Imahori
Composite films consisting of C60 and well-exfoliated nanosheets of transition metal dichalcogenides (TMDs), i.e., MoS2 or WS2, with a bulk heterojunction structure were facilely fabricated onto a semiconducting SnO2 electrode via a two-step methodology; self-assembly into their composite aggregates by injecting poor solvent into good solvent with the dispersion and subsequent electrophoretic deposition. Photoexcitation of the composites on SnO2 exhibited enhanced transient conductivities in comparison with single components of TMDs or C60, demonstrating that the bulk heterojunction nanostructure of TMD and C60 promoted the charge separation (CS)...
September 13, 2017: Chemistry: a European Journal
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
#7
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/28892191/psychometric-evaluation-of-a-motor-control-test-battery-of-the-craniofacial-region
#8
Harry von Piekartz, Elisabeth Stotz, Anna Both, Gesa Bahn, Susan Armijo-Olivo, Nikolaus Ballenberger
BACKGROUND: The primary objective of this study was to determine the structural and known-group validity as well as the inter-rater reliability of a test battery to evaluate the motor control of the craniofacial region. METHODS: 70 volunteers without TMD and 25 subjects with TMD (Axes I) per the DC/TMD were asked to execute a test battery consisting of eight tests. The tests were videotaped in the same sequence in a standardized manner. Two experienced physical therapists participated in this study as blinded assessors...
September 11, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28891569/improved-catalytic-activity-of-mo1-xwxse2-alloy-nanoflowers-promotes-efficient-hydrogen-evolution-reaction-in-both-acidic-and-alkaline-aqueous-solutions
#9
Oren E Meiron, Vasu Kuraganti, Idan Hod, Ronen Bar-Ziv, Maya Bar-Sadan
Layered transition metal dichalcogenides are noble-metal free electrocatalysts for the hydrogen evolution reaction (HER). Instead of using the common hydrothermal synthesis, which requires high pressure and temperature, herein a relatively simple and controlled colloidal synthesis was used to produce an alloy of Mo1-xWxSe2 with nanoflower morphology as a model system for the electrocatalysis of hydrogen evolution in both acidic and alkaline environments. The results show that Mo1-xWxSe2 alloys exhibit better catalytic activity in both acidic and alkaline solutions with low overpotentials compared to pure MoSe2 and WSe2...
September 11, 2017: Nanoscale
https://www.readbyqxmd.com/read/28891540/the-effect-of-calcium-phosphate-containing-desensitizing-agent-on-the-microtensile-bond-strength-of-multimode-adhesive-agent
#10
S H Siso, N Dönmez, D S Kahya, Y S Uslu
OBJECTIVE: The aim of this study was to investigate the effect of calcium phosphate containing desensitizing pretreatments on the microtensile bond strength (MTBS) and microleakage of the multimode adhesive agent to dentin. MATERIALS AND METHODS: In this study, twelve noncarious, freshly extracted human third molar teeth for MTBS and 20 premolar teeth for the microleakage test were used. The teeth were restored using Clearfil Universal Bond + Clearfil APX and Teeth mate Desensitizer (TMD)...
August 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28890556/ethnicity-and-upper-airway-measurements-a-study-in-south-indian-population
#11
Kalpana P Balakrishnan, Punitha A Chockalingam
BACKGROUND AND AIMS: Most studies on upper airway are conducted based on airway measurements in the western population. We set out to find the normal values of upper airway measurements in South Indian population. The aim of this study was to perform various upper airway examinations and to set standards for normal measurements in the South Indian population as well as to analyse the data for predictors of difficult intubation. METHODS: This prospective observational study was conducted in a tertiary cancer hospital in Southern India...
August 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28884860/pharmacological-treatment-of-oro-facial-pain-health-technology-assessment-including-a-systematic-review-with-network-meta-analysis
#12
REVIEW
B Häggman-Henrikson, P Alstergren, T Davidson, E D Högestätt, P Östlund, S Tranaeus, S Vitols, T List
This health technology assessment evaluated the efficacy of pharmacological treatment in patients with oro-facial pain. Randomised controlled trials were included if they reported pharmacological treatment in patients ≥18 years with chronic (≥3 months) oro-facial pain. Patients were divided into subgroups: TMD-muscle [temporomandibular disorders (TMD) mainly associated with myalgia]; TMD-joint (TMD mainly associated with temporomandibular joint pain); and burning mouth syndrome (BMS). The primary outcome was pain intensity reduction after pharmacological treatment...
October 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28884847/how-does-the-exosite-of-rhomboid-protease-affect-substrate-processing-and-inhibition
#13
Michael Shokhen, Amnon Albeck
Rhomboid proteases constitute a family of intramembrane serine proteases ubiquitous in all forms of life. They differ in many aspects from their soluble counterparts. We applied molecular dynamics (MD) computational approach to address several challenging issues regarding their catalytic mechanism: How does the exosite of GlpG rhomboid protease control the kinetics efficiency of substrate hydrolysis? What is the mechanism of inhibition by the non-competitive peptidyl aldehyde inhibitors bound to the GlpG rhomboid active site (AS)? What is the underlying mechanism that explains the hypothesis that GlpG rhomboid protease is not adopted for the hydrolysis of short peptides that do not contain a transmembrane domain (TMD)? Two fundamental features of rhomboid catalysis, the enzyme recognition and discrimination of substrates by TMD interactions in the exosite, and the concerted mechanism of non-covalent pre-catalytic complex to covalent tetrahedral complex (TC) conversion, provide answers to these mechanistic questions...
September 8, 2017: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/28883392/tunable-inverted-gap-in-monolayer-quasi-metallic-mos2-induced-by-strong-charge-lattice-coupling
#14
Xinmao Yin, Qixing Wang, Liang Cao, Chi Sin Tang, Xin Luo, Yujie Zheng, Lai Mun Wong, Shi Jie Wang, Su Ying Quek, Wenjing Zhang, Andrivo Rusydi, Andrew T S Wee
Polymorphism of two-dimensional transition metal dichalcogenides such as molybdenum disulfide (MoS2) exhibit fascinating optical and transport properties. Here, we observe a tunable inverted gap (~0.50 eV) and a fundamental gap (~0.10 eV) in quasimetallic monolayer MoS2. Using spectral-weight transfer analysis, we find that the inverted gap is attributed to the strong charge-lattice coupling in two-dimensional transition metal dichalcogenides (2D-TMDs). A comprehensive experimental study, supported by theoretical calculations, is conducted to understand the transition of monolayer MoS2 on gold film from trigonal semiconducting 1H phase to the distorted octahedral quasimetallic 1T' phase...
September 7, 2017: Nature Communications
https://www.readbyqxmd.com/read/28882615/fluoroscopy-assisted-vs-fluoroless-endoscopic-ultrasound-guided-transmural-drainage-of-pancreatic-fluid-collections-a-comparative-study
#15
Claudia F Consiglieri, Joan B Gornals, Juli Busquets, Nuria Peláez, Lluis Secanella, Meritxell De-La-Hera, Resurrección Sanzol, Joan Fabregat, José Castellote
INTRODUCTION: The need for fluoroscopy guidance in patients undergoing endoscopic ultrasound-guided transmural drainage (EUS-TMD) of peripancreatic fluid collections (PFCs) remains unclear. AIMS: The aim of this study was to compare general outcomes of EUS-TMD of PFCs under fluoroscopy (F) vs fluoroless (FL). METHODS: This is a comparative study with a retrospective analysis of a prospective and consecutive inclusion database at a tertiary centre, from 2009 to 2015...
September 4, 2017: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/28879245/effects-of-high-dose-capsaicin-on-tmd-subjects-a-randomized-clinical-study
#16
B K Campbell, R B Fillingim, S Lee, R Brao, D D Price, J K Neubert
Temporomandibular joint disorder (TMD) is a complex musculoskeletal disorder that presents with pain, limited jaw opening, and abnormal noises in the temporomandibular joint. Despite the significant impact that TMD has in terms of suffering and financial burden, relatively few new treatments have emerged; therefore, development of novel treatments to treat TMD pain remains a high priority. The rationale of this study was to use a double-blind, vehicle-controlled clinical trial to evaluate the effects of a high-concentration (8%) capsaicin cream on TMD...
January 2017: JDR Clinical and Translational Research
https://www.readbyqxmd.com/read/28870137/the-effect-of-supervised-exercise-on-localized-tmd-pain-and-tmd-pain-associated-with-generalized-pain
#17
Birgitta Häggman-Henrikson, Birgitta Wiesinger, Anders Wänman
OBJECTIVES: To evaluate the effect of a supervised exercise program in patients with localized/regional temporomandibular disorder (TMD) pain and with TMD associated with generalized pain. MATERIAL AND METHODS: Consecutively referred patients with localized/regional TMD pain (n = 56; 46 women and 10 men, mean age 44 years) and TMD associated with generalized pain (n = 21; 21 women, mean age 41 years) participated. Patients underwent a 10-session structured supervised exercise program over 10-20 weeks that included relaxation, and coordination and resistance training of the jaw and neck/shoulders...
September 4, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28869036/single-methyl-groups-can-act-as-toggle-switches-to-specify-transmembrane-protein-protein-interactions
#18
Li He, Helena Steinocher, Ashish Shelar, Emily B Cohen, Erin N Heim, Birthe B Kragelund, Gevorg Grigoryan, Daniel DiMaio
Transmembrane domains (TMDs) engage in protein-protein interactions that regulate many cellular processes, but the rules governing the specificity of these interactions are poorly understood. To discover these principles, we analyzed 26-residue model transmembrane proteins consisting exclusively of leucine and isoleucine (called LIL traptamers) that specifically activate the erythropoietin receptor (EPOR) in mouse cells to confer growth factor independence. We discovered that the placement of a single side chain methyl group at specific positions in a traptamer determined whether it associated productively with the TMD of the human EPOR, the mouse EPOR, or both receptors...
September 4, 2017: ELife
https://www.readbyqxmd.com/read/28866048/subcutaneous-lipoatrophy-and-skin-depigmentation-secondary-to-tmj-intra-articular-corticosteroid-injection
#19
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/28865795/insights-into-the-molecular-basis-for-substrate-binding-and-specificity-of-the-fungal-cystine-transporter-cgcyn1
#20
Anup Arunrao Deshpande, Monika Sharma, Anand Kumar Bachhawat
Cystine transporters are a clinically important class of transporters found in bacteria, pathogenic fungi and mammalian cells. Despite their significance, very little is known about the mechanism of substrate recognition and transport. We have carried out studies on the plasma membrane Candida glabrata cystine transporter, CgCYN1 a member of the amino acid-polyamine-organocation (APC) transporter superfamily. A homology model of CgCYN1 was generated by using crystal structures of three known bacterial APC transporters followed by further refinement using molecular dynamics simulations...
September 1, 2017: Biochimica et Biophysica Acta
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