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https://www.readbyqxmd.com/read/28497296/preferential-flow-characteristics-of-reclaimed-mine-soils-in-a-surface-coal-mine-dump
#1
Lv Gang, Li Jun, Li Yexin, Wang Ting, Liu Yazhuo, Fu Xinyang
There are a large number of macropores/tubular channels of a few centimeters and plant roots in reclaimed dump soils, which are the main reasons for the formation of soil macropores and soil preferential flow. To systematically study the morphological characteristics and variation of soil preferential flow for different reclaimed vegetations in a dump, a dye-staining experiment and physical and chemical analysis were carried out to investigate the formation mechanism and influencing factors of soil preferential flow in the vegetation restoration process...
June 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28468157/comparison-of-two-screw-retained-free-gingival-grafting-techniques
#2
Bruno Seemann Vieira, Alessandra Rasquel de Oliveira, Miguel Riquelme Rodas, Luciana Prado Maia, Pamela Letícia Dos Santos, Elcia Maria Varize Silveira
Free gingival graft is a predictable technique for increasing the amount of attached gingiva and root coverage; however, its use is limited for cosmetic reasons. To overcome this issue, this study sought to compare 2 free gingival graft techniques that use oral screws to attach grafts. Free gingival graft was performed on teeth 44 to 46 using the traditional technique, while on the opposite side, on teeth 34 to 36, partly epithelialized free gingival grafts were performed. The partly epithelialized free gingival grafts were found to provide better cosmetic results relative to the completely epithelialized free gingival graft, and the use of stabilizing screws was found to be simple and effective...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28465795/the-comparison-of-modified-semilunar-technique-in-conjunction-with-connective-tissue-and-subepithelial-connective-tissue-graft-for-root-coverage-a-randomized-controlled-trial
#3
Niloofar Jenabian, Nafiseh Khanjani, Ali Bijani
BACKGROUND: Gingival recession may result in aesthetically unfavourable effects, difficulty in plaque control, increased susceptibility to root caries, and dentin hypersensitivity. OBJECTIVE: The aim of this study was to compare the use of modified semilunar techniques with connective tissue and subepithelial connective tissue grafts (Langer) for denuded root surface coverage. METHODS: In this randomized clinical trial, fourteen localized recessions of Miller class I to II were treated in 5 subjects...
February 2017: Electronic Physician
https://www.readbyqxmd.com/read/28458588/evolution-and-complexity-of-government-policies-to-protect-the-health-of-undocumented-illegal-migrants-in-thailand-the-unsolved-challenges
#4
Rapeepong Suphanchaimat, Weerasak Putthasri, Phusit Prakongsai, Viroj Tangcharoensathien
BACKGROUND: Of the 65 million residents in Thailand, >1.5 million are undocumented/illegal migrants from neighboring countries. Despite several policies being launched to improve access to care for these migrants, policy implementation has always faced numerous challenges. This study aimed to investigate the policy makers' views on the challenges of implementing policies to protect the health of undocumented/illegal migrants in light of the dynamics of all of the migrant policies in Thailand...
2017: Risk Management and Healthcare Policy
https://www.readbyqxmd.com/read/28422399/dorsal-root-ganglion-stimulation-for-complex-regional-pain-syndrome-crps-recurrence-after-amputation-for-crps-and-failure-of-conventional-spinal-cord-stimulation
#5
Andreas Goebel, Sarah Lewis, Rhodri Phillip, Manohar Sharma
Limb amputation is sometimes being performed in long-standing complex regional pain syndrome (CRPS), although little evidence is available guiding management decisions, including how CRPS recurrence should be managed. This report details the management of a young soldier with CRPS recurrence 2 years after midtibial amputation for CRPS. Conventional spinal cord stimulation did not achieve paraesthetic coverage, or pain relief in the stump, whereas L4 dorsal root ganglion stimulation achieved both coverage and initially modest pain relief, and over time, substantial pain relief...
April 18, 2017: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/28406062/constraint-approaches-to-the-estimation-of-relative-risk
#6
Yuanyuan Tang, Philip G Jones, Liangrui Sun, Suzanne V Arnold, John A Spertus
In medical and epidemiologic studies, relative risk is usually the parameter of interest. However, calculating relative risk using standard log-Binomial regression approach often encounters non-convergence. A modified Poisson regression, which uses robust variance, was proposed by Zou in 2004. Although the modified Poisson regression with sandwich variance estimator is valid for the estimation of relative risk, the predicted probability of the outcome may be greater than the natural boundary 1 for the unobserved but plausible covariate combinations...
January 1, 2017: Statistical Methods in Medical Research
https://www.readbyqxmd.com/read/28398648/esthetic-rehabilitation-of-retained-primary-teeth-a-conservative-approach
#7
Cristina Parise Gré, Vitor Schweigert Bona, Diogo Pedrollo Lise, Sylvio Monteiro Júnior
With the advancement in ceramic restorations bonded to tooth structure, the treatment has become a feasible and conservative option to restore teeth with alteration in shape when owing to high demand in esthetics, with or without minimum tooth preparation. This article describes a report of a 32-year-old woman who was dissatisfied with her smile. The patient reported that she still had deciduous teeth, and that the maxillary lateral incisors had been restored with direct resin composite to correct the teeth shape...
April 11, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28396887/comparison-of-enamel-matrix-derivative-emdogain-and-subepithelial-connective-tissue-graft-for-root-coverage-in-patients-with-multiple-gingival-recession-defects-a-randomized-controlled-clinical-study
#8
Angeliki Alexiou, Ioannis Vouros, Georgios Menexes, Antonis Konstantinidis
OBJECTIVE: The purpose of the present study was to compare the clinical efficiency of enamel matrix derivative (EMD) placed under a coronally advanced flap (CAF; test group), to a connective tissue graft (CTG) placed under a CAF (control group), in patients with multiple recession defects. METHOD AND MATERIALS: Twelve patients with multiple Miller's Class I or II gingival recessions in contralateral quadrants of the maxilla were selected. The primary outcome variable was the change in depth of the buccal recession (REC), at 6 months (T6) after surgery...
2017: Quintessence International
https://www.readbyqxmd.com/read/28394446/laser-ablation-electrospray-ionization-mass-spectrometry-with-ion-mobility-separation-reveals-metabolites-in-the-symbiotic-interactions-of-soybean-roots-and-rhizobia
#9
Sylwia A Stopka, Beverly J Agtuca, David W Koppenaal, Ljiljana Paša-Tolić, Gary Stacey, Akos Vertes, Christopher R Anderton
Technologies enabling in situ metabolic profiling of living plant systems are invaluable for understanding physiological processes and could be used for rapid phenotypic screening (e.g., to produce plants with superior biological nitrogen-fixing ability). The symbiotic interaction between legumes and nitrogen-fixing soil bacteria results in a specialized plant organ (i.e., root nodule) where the exchange of nutrients between host and endosymbiont occurs. Laser-ablation electrospray ionization mass spectrometry (LAESI-MS) is a method that can be performed under ambient conditions requiring minimal sample preparation...
April 10, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28392815/gingival-unit-graft-versus-free-gingival-graft-for-treatment-of-gingival-recession-a-randomized-controlled-clinical-trial
#10
Niloofar Jenabian, Mohadese Yazdanpanah Bahabadi, Ali Bijani, Morteza Rahimi Rad
OBJECTIVES: Gingival recession can lead to root exposure and discomfort for patients. There are various techniques for root coverage. The aim of this study was to compare the use of gingival unit graft (palatal graft including the marginal gingiva and papillae) with free gingival graft for treatment of localized gingival recession. MATERIALS AND METHODS: In this randomized controlled clinical trial, 18 bilateral localized recessions of Miller class I and II were treated in nine systemically healthy patients...
June 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28368130/a-novel-technique-in-root-coverage-procedures-the-fibrin-assisted-soft-tissue-promotion-concept
#11
Alexandre-Amir Aalam, Alina Krivitky Aalam, Joseph Choukroun
The goal of periodontal plastic surgery is to correct the soft-tissue deformities associated with the loss of attached and keratinized tissue. A variety of flap manipulations related to the use of subepithelial connective tissue grafts are described with great success in the literature but are linked with morbidity and harvesting-quality issues, inclining clinicians and researchers to find alternatives to such techniques. Advanced platelet-rich fibrin, which is widely used in medicine and oral therapy, represents a newer generation of blood-derived growth factors...
April 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28364931/root-cause-analysis-underscores-the-importance-of-understanding-addressing-and-communicating-cold-chain-equipment-failures-to-improve-equipment-performance
#12
Pat Lennon, Brian Atuhaire, Shahrzad Yavari, Vidya Sampath, Mercy Mvundura, Nithya Ramanathan, Joanie Robertson
Vaccine cold chain equipment (CCE) in developing countries is often exposed to harsh environmental conditions, such as extreme temperatures and humidity, and is subject to many additional challenges, including intermittent power supply, insufficient maintenance capacity, and a scarcity of replacement parts. Together, these challenges lead to high failure rates for refrigerators, potentially damaging vaccines and adversely affecting immunization coverage. Providing a sustainable solution for improving CCE performance requires an understanding of the root causes of failure...
April 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28355311/enhancing-root-eminence-and-papilla-contour-using-single-contoured-subepithelial-connective-tissue-autografts-for-recession-coverage
#13
Donald E Lareau, James E Hinrichs, Georgios A Kotsakis
Current techniques using autogenous soft tissue in periodontal plastic surgery have limitations in the number of teeth that can be treated and may result in suboptimal esthetic results. The innovative use of single, contoured grafts reported in this article overcomes the drawbacks associated with these techniques by more efficient use of available donor tissue. Autogenous tissue is used to graft each individual tooth, leaving the interdental areas uncovered. Multiple teeth-in some cases an entire arch-can be treated in one session, providing consistent and predictable reestablishment of the normal scalloped gingival architecture and convex root eminence...
March 29, 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28345758/biodegradable-gelatin-beta-tricalcium-phosphate-sponges-incorporating-recombinant-human-fibroblast-growth-factor-2-for-treatment-of-recession-type-defects-a-split-mouth-study-in-dogs
#14
A Shujaa Addin, T Akizuki, S Hoshi, T Matsuura, T Ikawa, S Fukuba, M Matsui, Y Tabata, Y Izumi
BACKGROUND AND OBJECTIVE: Tissue engineering by using recombinant human (rh) growth factor technology may offer a promising therapeutic approach for treatment of gingival recession. Fibroblast growth factor-2 (FGF-2) has shown the ability to promote periodontal regeneration. Gelatin/beta-tricalcium phosphate (gelatin/β-TCP) sponges have been developed to control the release of growth factors. The present study evaluated the periodontal regenerative efficacy of rhFGF-2 by comparing gelatin/β-TCP sponges incorporated with rhFGF-2 to the scaffolds alone in artificially created recession-type defects in dogs...
March 27, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28339109/validation-of-dynamic-treatment-couch-tracking-for-prostate-sbrt
#15
Stefanie Ehrbar, Simon Schmid, Alexander Jöhl, Stephan Klöck, Matthias Guckenberger, Oliver Riesterer, Stephanie Tanadini-Lang
PURPOSE: In stereotactic body radiation therapy (SBRT) of prostatic cancer, a high dose per fraction is applied to the target with steep dose gradients. Intrafractional prostate motion can occur unpredictably during the treatment and lead to target miss. This work investigated the dosimetric benefit of motion compensation with dynamic treatment-couch tracking for prostate SBRT treatments in the presence of prostatic motion. METHODS: Ten SBRT treatment plans for prostate cancer patients with integrated boosts to their index lesion were prepared...
March 24, 2017: Medical Physics
https://www.readbyqxmd.com/read/28338390/biologic-remodeling-of-periodontal-dimensions-of-areas-treated-with-gingival-augmentation-procedure-gap-a-25-year-follow-up-observation
#16
Giancarlo Agudio, Leandro Chambrone, Giovanpaolo Pini Prato
BACKGROUND: The role of keratinized tissue (KT) for maintenance of periodontal health has been debated for many years. This study assessed the long-term "biologic remodeling" of periodontal dimensions of teeth treated with free gingival grafts (FGG) compared to their adjacent/untreated teeth. METHODS: Seventy-four patients, with at least one site showing absence or a reduced amount of attached gingiva associated with gingival recession at baseline, were treated with FGG in a private practice...
March 24, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28338039/coronally-advanced-flap-combined-with-connective-tissue-graft-treatment-of-choice-for-root-coverage-following-recession
#17
COMMENT
Ed Madeley, Brett Duane
Data sourcesMedline, The Cochrane Database Trials Register, Embase, supplemented by handsearching of five prominent periodontal journals, references from reviewed papers and contact with experts in the field of mucogingival surgery.Study selectionRandomised controlled trials (RCTs) with or without a split-mouth design, on human patients. RCTs had to compare at least two different surgical interventions on clearly specified recession defects, be over six months in duration and have clearly specified clinical measurements regarding root coverage...
March 2017: Evidence-based Dentistry
https://www.readbyqxmd.com/read/28337820/selective-radiofrequency-stimulation-of-the-dorsal-root-ganglion-drg-as-a-method-for-predicting-targets-for-neuromodulation-in-patients-with-post-amputation-pain-a-case-series
#18
Corey W Hunter, Ajax Yang, Tim Davis
OBJECTIVE: While spinal cord stimulation (SCS) has established itself as an accepted and validated treatment for neuropathic pain, there are a number of conditions where it has experienced less, long-term success: post amputee pain (PAP) being one of them. Dorsal root ganglion (DRG) stimulation has shown great promise, particularly in conditions where traditional SCS has fallen short. One major difference between DRG stimulation and traditional SCS is the ability to provide focal stimulation over targeted areas...
March 23, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28331369/comparison-of-conventional-and-semilunar-coronally-positioned-flap-techniques-for-root-coverage-in-teeth-with-cervical-abrasion-restored-with-pink-resin
#19
Felipe Rychuv Santos, Carmen Lucia Mueller Storrer, Emanuelle Juliana Cunha, Lucienne M Ulbrich, Camilo Andress Villabona Lopez, Tatiana Miranda Deliberador
Gingival recession is the most common mucogingival defect, characterized by apical migration of the gingival margin from the cementoenamel junction and root exposure. Several surgical techniques are reported for the treatment of gingival recession. Here we present a comparison of the conventional (coronally advanced flap) and semilunar coronally positioned flap techniques for root coverage in teeth with cervical abrasion restored with pink resin that mimics the color of the gingiva. Although the conventional technique is more predictable, we found that both techniques were effective in achieving satisfactory and esthetic root coverage...
2017: Clinical, Cosmetic and Investigational Dentistry
https://www.readbyqxmd.com/read/28327193/longitudinal-evaluation-of-aortic-hemodynamics-in-marfan-syndrome-new-insights-from-a-4d-flow-cardiovascular-magnetic-resonance-multi-year-follow-up-study
#20
Julia Geiger, Daniel Hirtler, Kristina Gottfried, Ozair Rahman, Emilie Bollache, Alex J Barker, Michael Markl, Brigitte Stiller
BACKGROUND: The aim of this 4D flow cardiovascular magnetic resonance (CMR) follow-up study was to investigate longitudinal changes in aortic hemodynamics in adolescent patients with Marfan syndrome (MFS). METHODS: 4D flow CMR for the assessment of in-vivo 3D blood flow with full coverage of the thoracic aorta was performed twice (baseline scan t1/follow-up scan t2) in 19 adolescent MFS patients (age at t1: 12.7 ± 3.6 years, t2: 16.2 ± 4.3 years) with a mean follow-up duration of 3...
March 22, 2017: Journal of Cardiovascular Magnetic Resonance
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