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https://www.readbyqxmd.com/read/28449265/a-pilot-study-of-nocturnal-temporalis-muscle-activity-in-tmd-diagnostic-groups-of-women
#1
Feng Wei, Mark H Van Horn, Matthew C Coombs, Xin She, Theresa S Gonzales, Yoly M Gonzalez, JoAnna M Scott, Laura R Iwasaki, Jeffery C Nickel, Hai Yao
BACKGROUND: Temporomandibular disorder (TMD) incidences are believed to be related to parafunctional behaviors like teeth clenching. OBJECTIVES: This pilot study aimed to (i) develop an automated clench-detection algorithm, and (ii) apply the algorithm to test for differences in nocturnal clenching in women with and without TMD. METHODS: Subjects gave informed consent to participate. Adult women were categorized using Diagnostic Criteria for TMD according to presence/absence (+/-) of both TM joint disc placement (DD) and chronic pain (P) into two groups (+DD+P, -DD-P) with 12 subjects each...
April 27, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28440673/mechanisms-of-craniofacial-pain
#2
Juliana Geremias Chichorro, Frank Porreca, Barry Sessle
Aim To provide an overview of mechanisms underlying craniofacial pain; to highlight peripheral and central adaptations that may promote chronification of pain in craniofacial pain states such as migraine and temporomandibular disorders (TMD). Background Pain is a common symptom associated with disorders involving craniofacial tissues including the teeth and their supporting structures, the temporomandibular joint and the muscles of the head. Most acute painful craniofacial conditions are easily recognized and well managed, but others, especially those that are chronic (e...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28440253/evaluation-of-meibomian-gland-and-tear-film-changes-in-patients-with-pterygium
#3
Fen Ye, Fen Zhou, Yuan Xia, Xiaomin Zhu, Yan Wu, Zhenping Huang
BACKGROUND: Recent studies have demonstrated that pterygium has a close relationship with dry eye disease. This study is to determine abnormalities in meibomian gland and tear function in patients with pterygium and to assess the relationship between the variables. MATERIALS AND METHODS: Forty eyes from forty patients with primary nasal pterygium and forty eyes from forty volunteers without ocular pathologies were enrolled in this study. Ocular surface disease index scores, meibomian gland expression scores, lid margin abnormality scores, meiboscore, tear film breakup time (BUT), Schirmer test (SIT) value, and the lower tear meniscus height (TMH), tear meniscus depth (TMD), and tear meniscus area (TMA) using Fourier domain optical coherence were performed...
March 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28439555/structural-and-biochemical-differences-between-the-notch-and-the-amyloid-precursor-protein-transmembrane-domains
#4
Catherine L Deatherage, Zhenwei Lu, Brett M Kroncke, Sirui Ma, Jarrod A Smith, Markus W Voehler, Robert L McFeeters, Charles R Sanders
γ-Secretase cleavage of the Notch receptor transmembrane domain is a critical signaling event for various cellular processes. Efforts to develop inhibitors of γ-secretase cleavage of the amyloid-β precursor C99 protein as potential Alzheimer's disease therapeutics have been confounded by toxicity resulting from the inhibition of normal cleavage of Notch. We present biochemical and structural data for the combined transmembrane and juxtamembrane Notch domains (Notch-TMD) that illuminate Notch signaling and that can be compared and contrasted with the corresponding traits of C99...
April 2017: Science Advances
https://www.readbyqxmd.com/read/28437516/a-rare-case-of-misdiagnosed-silent-lung-cancer-with-solitary-metastasis-to-the-temporomandibular-joint-condyle
#5
Luca Guarda-Nardini, Edoardo Stellini, Adolfo Di Fiore, Daniele Manfredini
This article describes the case history of a 59-year-old female patient who sought advice for temporomandibular joint (TMJ) pain and sounds but who was actually diagnosed with a primary lung cancer with metastasis to the TMJ. The patient had a history of TMJ pain and deflection in jaw movement that progressively worsened over a few months and did not improve with the usual standard of care treatment provided by an orofacial pain practitioner. Magnetic resonance and computed tomography (CT) prescribed at a tertiary clinic showed an osteolytic bone mass within the right TMJ condyle...
April 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/28437513/prevalence-of-temporomandibular-disorders-in-the-northern-finland-birth-cohort-1966
#6
Päivi Jussila, Heikki Kiviahde, Ritva Näpänkangas, Jari Päkkilä, Paula Pesonen, Kirsi Sipilä, Pertti Pirttiniemi, Aune Raustia
AIMS: To investigate the prevalence of temporomandibular disorders (TMD) in the 46-year-old cohort subjects from the Northern Finland Birth Cohort 1966 (NFBC 1966). METHODS: Altogether, 1,962 subjects (1,050 women, 912 men) participated in a clinical medical and dental examination and responded to questionnaires in 2012 to 2013. The stomatognathic examination was performed according to a modified protocol of the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD)...
April 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/28437512/dentist-practice-patterns-and-therapeutic-confidence-in-the-treatment-of-pain-related-to-temporomandibular-disorders-in-a-dental-practice-based-research-network
#7
Naoki Kakudate, Yoko Yokoyama, Futoshi Sumida, Yuki Matsumoto, Valeria V Gordan, Gregg H Gilbert, Ana M Velly, Eric L Schiffman
AIMS: To quantify the practice patterns of Japanese dentists in the management of pain related to temporomandibular disorders (TMD) and to identify specific characteristics that are significantly associated with the decision to perform occlusal adjustment for TMD-related pain. METHODS: A cross-sectional study was conducted consisting of a questionnaire survey of dentists affiliated with the Dental Practice-Based Research Network Japan (JDPBRN) (n = 148). Participants were asked how they diagnosed and treated TMD-related pain...
April 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/28437015/one-step-solution-phase-growth-of-transition-metal-dichalcogenide-thin-films-directly-on-solid-substrates
#8
Anupam Giri, Heeseung Yang, Kalianan Thiyagarajan, Woosun Jang, Jae Min Myoung, Ranbir Singh, Aloysius Soon, Kilwon Cho, Unyong Jeong
Ultrathin transition metal dichalcogenides (TMDs) have exotic electronic properties. With success in easy synthesis of high quality TMD thin films, the potential applications will become more viable in electronics, optics, energy storage, and catalysis. Synthesis of TMD thin films has been mostly performed in vacuum or by thermolysis. So far, there is no solution phase synthesis to produce large-area thin films directly on target substrates. Here, this paper reports a one-step quick synthesis (within 45-90 s) of TMD thin films (MoS2 , WS2 , MoSe2 , WSe2 , etc...
April 24, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28435374/spatial-analysis-of-mandibular-condyles-in-patients-with-temporomandibular-disorders-and-normal-controls-using-cone-beam-computed-tomography
#9
Natheer Hashim Al-Rawi, Asmaa Tahseen Uthman, Sahar M Sodeify
OBJECTIVES: The aim of the study is to investigate the condylar position and its relation to articular eminence and axial condylar angle in temporomandibular joint disorder (TMD) patients and in normal controls using cone beam computed tomography (CBCT). MATERIALS AND METHODS: CBCT temporomandibular joint (TMJ) images of 70 participants (38 males and 32 females, mean age 26.4 years) were analyzed. They were divided into control group (including 35 subjects) and study group (including 35 subjects)...
January 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28432030/effects-of-mixed-proximal-and-distal-topogenic-signals-on-the-topological-sensitivity-of-a-membrane-protein-to-the-lipid-environment
#10
Heidi Vitrac, William Dowhan, Mikhail Bogdanov
The final topology of membrane proteins is thought to be dictated primarily by the encoding sequence. However, according to the Charge Balance Rule the topogenic signals within nascent membrane proteins are interpreted in agreement with the Positive Inside Rule as influenced by the protein phospholipid environment. The role of long-range protein-lipid interactions in establishing a final uniform or dual topology is unknown. In order to address this role, we determined the positional dependence of the potency of charged residues as topological signals within Escherichia coli sucrose permease (CscB) in cells in which the zwitterionic phospholipid phosphatidylethanolamine (PE), acting as topological determinant, was either eliminated or tightly titrated...
April 18, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28432015/blatm-2-0-a-genetic-tool-revealing-preferred-antiparallel-interaction-of-transmembrane-helix-4-of-the-dual-topology-protein-emre
#11
Ayse Julius, Lisa Laur, Christoph Schanzenbach, Dieter Langosch
Parallel and antiparallel transmembrane helix-helix interactions support the folding and non-covalent assembly of many integral membrane proteins. While several genetic tools are currently in use to study parallel transmembrane helix-helix interactions, antiparallel associations have been difficult to determine. Here, we present a novel genetic approach, termed BLaTM 2.0, which can be used in combination with the recently presented BLaTM 1.2 to compare the efficiency of antiparallel and parallel TMD interactions in a natural membrane...
April 18, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/28431484/who-5-well-being-index-as-screening-instrument-for-psychological-comorbidity-in-patients-with-temporomandibular-disorder
#12
Fadi Ismail, Karin Lange, Marit Gillig, Katarzyna Zinken, Lena Schwabe, Meike Stiesch, Michael Eisenburger
OBJECTIVES: The aim of the study was to compare the WHO-Five Well-Being Index (WHO-5) with the Oral Health Impact Profile-49 (OHIP-49) questionnaire as screening tools to detect psychological comorbidity in TMDs. METHODS: A TMD group (92 patients, 42.8 ± 17.1 yrs) and a control group (90 patients of the Department of Prosthetic Dentistry, 38.9 ± 10.1 yrs) completed the WHO-5 and the OHIP-49 questionnaire. RESULTS: The patients with TMD reported significantly greater OHIP-49 sum scores than controls (47...
April 21, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/28422229/dendritic-growth-of-monolayer-ternary-ws2-1-x-se2x-flakes-for-enhanced-hydrogen-evolution-reaction
#13
Yu Zhang, Kaili Liu, Fengmei Wang, Tofik Ahmed Shifa, Yao Wen, Feng Wang, Kai Xu, Zhenxing Wang, Chao Jiang, Jun He
Two-dimensional transition-metal dichalcogenides (TMDs) have attracted much research interest in the hydrogen evolution reaction (HER) due to their superior electrocatalytic properties. Beyond binary TMDs, ternary TMD alloys, as electrocatalysts, were also gradually acknowledged for their remarkable efficiency in HER. Herein, we successfully synthesized monolayer dendritic ternary WS2(1-x)Se2x flakes possessing abundant active edge sites on a single crystalline SrTiO3 (STO(100)). And the obtained dendritic WS2(1-x)Se2x flakes could be transferred intact to arbitrary substrates, for example, SiO2/Si and Au foils...
April 19, 2017: Nanoscale
https://www.readbyqxmd.com/read/28420942/temporomandibular-disorders-and-headache-a-retrospective-analysis-of-1198-patients
#14
Carlo Di Paolo, Anna D'Urso, Piero Papi, Francesco Di Sabato, Daniele Rosella, Giorgio Pompa, Antonella Polimeni
Aim. Headache is one of the most common diseases associated with Temporomandibular Disorders (TMDs). The aim of this study was to evaluate, retrospectively, if headache influences TMD's symptoms. Material and Methods. A total sample of 1198 consecutive TMD patients was selected. After a neurological examination, a diagnosis of headache, according to the latest edition of the International Classification of Headache Disorders, was performed in 625 subjects. Patients were divided into two groups based on presence/absence of headache: Group with Headache (GwH) and Group without Headache (GwoH)...
2017: Pain Research & Management: the Journal of the Canadian Pain Society
https://www.readbyqxmd.com/read/28420009/temporal-summation-and-motor-function-modulation-during-repeated-jaw-movements-in-patients-with-temporomandibular-disorder-pain-and-healthy-controls
#15
Yuanxiu Zhang, Sheng Shao, Jinglu Zhang, Lin Wang, Kelun Wang, Peter Svensson
Temporal summation of nociceptive inputs may be an important pathophysiological mechanism in temporomandibular disorders (TMD) pain; however, it remains unknown how natural jaw function relates to underlying pain mechanisms. This study evaluated changes in pain and movement patterns during repeated jaw movements in patients with painful temporomandibular joints (TMJ) compared with healthy controls. Twenty patients with TMD with TMJ pain, and an anterior disk displacement without reduction and 20 age- and gender-matched healthy volunteers were included...
March 31, 2017: Pain
https://www.readbyqxmd.com/read/28419845/does-orthognathic-surgery-cause-or-cure-temporomandibular-disorders-a%C3%A2-systematic-review-and-meta-analysis
#16
REVIEW
Essam Ahmed Al-Moraissi, Larry M Wolford, Daniel Perez, Daniel M Laskin, Edward Ellis
PURPOSE: There is still controversy about whether orthognathic surgery negatively or positively affects temporomandibular disorders (TMDs). The purpose of this study was to determine whether orthognathic surgery has a beneficial or deleterious effect on pre-existing TMDs. MATERIALS AND METHODS: A systematic review and meta-analysis were conducted based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We searched 3 major databases to locate all pertinent articles published from 1980 to March 2016...
March 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28414608/mechanobehavioral-scores-in-women-with-and-without-tmj-disc-displacement
#17
L R Iwasaki, Y M Gonzalez, Y Liu, H Liu, M Markova, L M Gallo, J C Nickel
Cartilage fatigue may be a factor in the precocious development of degenerative changes in the temporomandibular joint (TMJ). This cross-sectional study estimated potential for cartilage fatigue via TMJ energy densities (ED) and jaw muscle duty factors (DF), which were combined to calculate mechanobehavioral scores (MBS) in women with (+) and without (-) bilateral TMJ disc displacement (DD). All subjects gave informed consent to participate and were examined using Diagnostic Criteria (DC) for Temporomandibular Disorders (TMD) and magnetic resonance (MR) and computed tomography (CT) images...
April 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28408961/the-usefulness-of-diagnostic-imaging-for-the-assessment-of-pain-symptoms-in-temporomandibular-disorders
#18
REVIEW
Shigeaki Suenaga, Kunihiro Nagayama, Taisuke Nagasawa, Hiroko Indo, Hideyuki J Majima
The causes of pain symptoms in the temporomandibular joint (TMJ) and masticatory muscle (MM) regions may not be determined by clinical examination alone. In this review, we document that pain symptoms of the TMJ and MM regions in patients with temporomandibular disorders (TMDs) are associated with computed tomography and magnetic resonance (MR) findings of internal derangement, joint effusion, osteoarthritis, and bone marrow edema. However, it is emphasized that these imaging findings must not be regarded as the unique and dominant factors in defining TMJ pain...
November 2016: Japanese Dental Science Review
https://www.readbyqxmd.com/read/28407990/mandibular-movements-in-older-people-with-rheumatoid-arthritis
#19
Kelly Machado de Andrade, Bruna Fernandes Moreira Alfenas, Camila Heitor Campos, Renata Cunha Matheus Rodrigues Garcia
OBJECTIVE: The aim of this study was to compare the mandibular movements in older people with and without temporomandibular disorder (TMD) associated with rheumatoid arthritis (RA). STUDY DESIGN: Thirty partially or completely edentulous older adults (65.33 ± 4.7 years) were assigned to 2 groups: (1) with RA and TMD and (2) without RA and TMD. Chewing movements of the jaws during mastication of the test material (Optocal) and the range of mandibular movements were evaluated by using the JT-3-D kinesiographic device before and after new removable prosthesis insertion...
May 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28407454/diagnostic-criteria-for-temporomandibular-disorders-dc-tmd-inter-examiner-reliability-of-the-finnish-version-of-axis-i-clinical-diagnoses
#20
Jenni Leskinen, Tuija Suvinen, Tuija Teerijoki-Oksa, Pentti Kemppainen, Ritva Näpänkangas, Per Alstergren, Yrsa Le Bell, Heli Forssell, Riitta Myllykangas, Mimmi Tolvanen, Marika Doepel, Kirsi Sipilä
BACKGROUND: Recently, updated Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) were published to assess TMD in a standardized way in clinical and research settings. The DC/TMD protocol has been translated into Finnish using specific cultural equivalency procedures. OBJECTIVE: To assess the inter-examiner reliability using the Finnish translations of the DC/TMD-FIN Axis I clinical diagnostic assessment instruments. METHODS: Reliability assessment data were collected during a one-day DC/TMD Examiner Training Course at the University of Turku, Finland, in collaboration with the International DC/TMD Training and Calibration Center in Malmö University...
April 13, 2017: Journal of Oral Rehabilitation
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