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https://www.readbyqxmd.com/read/28216846/three-dimensional-finite-element-analysis-of-the-stress-distribution-pattern-in-a-mandibular-first-molar-tooth-restored-with-five-different-restorative-materials
#1
Kathleen Manuela D'souza, Meena Ajay Aras
INTRODUCTION: Badly broken or structurally compromised posterior teeth are frequently associated with crown/root fracture. Numerous restorative materials have been used to fabricate indirect full-coverage restorations for such teeth. This study aims to evaluate and compare the effect of restorative materials on the stress distribution pattern in a mandibular first molar tooth, under varying loading conditions and to compare the stress distribution pattern in five commonly used indirect restorative materials...
January 2017: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/28196288/clinical-adequacy-assessment-of-auto-contours-for-prostate-imrt-with-meaningful-endpoints
#2
Hamidreza Nourzadeh, William T Watkins, Mahmoud Ahmad, Cheukkai Hui, David Schlesinger, Jeffrey V Siebers
PURPOSE: To determine if radiation treatment plans created based on auto-segmented (AS) regions-of-interest (ROI)s are clinically equivalent to plans created based on manually segmented ROIs, where equivalence is evaluated using probabilistic dosimetric metrics and probabilistic biological endpoints for prostate IMRT. METHOD AND MATERIALS: Manually drawn contours and auto-segmented ROIs were created for 167 CT image sets acquired from 19 prostate patients. Auto-segmentation was performed utilizing Pinnacle's Smart Probabilistic Image Contouring Engine...
February 14, 2017: Medical Physics
https://www.readbyqxmd.com/read/28196169/the-use-of-platelet-rich-fibrin-versus-subepithelial-connective-tissue-graft-in-treatment-of-multiple-gingival-recessions-a-randomized-clinical-trial
#3
Elif Öncü
The objective of this study was to evaluate the clinical effectiveness of platelet-rich fibrin (PRF) membrane used in combination with a modified coronally advanced flap (MCAF) and to compare it with the use of a subepithelial connective tissue graft (SCTG) in combination with a MCAF in treatment of Miller Class I and II bilateral multiple gingival recessions. A total of 20 patients with multiple Miller Class I and II maxillary gingival recession defects participated in this randomized, split-mouth, controlled study...
March 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28196164/a-novel-modification-of-semilunar-coronally-advanced-flap-for-the-treatment-of-gingival-recession-case-series
#4
Mauro Pedrine Santamaria, Miki Taketomi Saito, Ingrid Fernandes Mathias, Camila Augusto Silveira, Marcio Zaffalon Casati, Enilson Antônio Sallum, Renato Correa Casarin
This article aims to describe a modification of the semilunar coronally advanced flap. A total of 12 systemically and periodontally healthy patients presenting Miller Class I gingival recession were treated with the modified semilunar coronally advanced flap technique described in this article. After 1 year of follow-up, the mean root coverage was 85.4% ± 24.7%. Significant gingival recession reduction, clinical attachment gain, and reduction in dentin sensitivity was observed 1 year after surgery. This novel semilunar coronally advanced flap technique was demonstrated to be effective for root coverage in Miller Class I gingival recessions...
March 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28192471/the-abundance-and-diversity-of-arbuscular-mycorrhizal-fungi-are-linked-to-the-soil-chemistry-of-screes-and-to-slope-in-the-alpic-paleo-endemic-berardia-subacaulis
#5
Gabriele Casazza, Erica Lumini, Enrico Ercole, Francesco Dovana, Maria Guerrina, Annamaria Arnulfo, Luigi Minuto, Anna Fusconi, Marco Mucciarelli
Berardia subacaulis Vill. is a monospecific genus that is endemic to the South-western Alps, where it grows on alpine screes, which are extreme habitats characterized by soil disturbance and limiting growth conditions. Root colonization by arbuscular mycorrhizal fungi (AMF) is presumably of great importance in these environments, because of its positive effect on plant nutrition and stress tolerance, as well as on structuring the soil. However, there is currently a lack of information on this topic. In this paper, we tested which soil characteristics and biotic factors could contribute to determining the abundance and community composition of AMF in the roots of B...
2017: PloS One
https://www.readbyqxmd.com/read/28166072/gender-based-comparison-of-gingival-zenith-esthetics
#6
M Humagain, D Rokaya, R Srii, S Dixit, D Kafle
Background The size, proportion and gingival zenith position of maxillary anterior teeth plays in the anterior teeth esthetics. Objective To compare the gingival zenith positions and levels between male and female in right and left side as an esthetic parameter. Method Impression of the maxillary arch was made in each participant with irreversible hydrocolloid, and dental cast was made with dental stone type IV. Two clinical parameters were evaluated: (1) the gingival zenith position (GZP) from the vertical bisected midline along the long axis of each individual maxillary anterior tooth; and (2) the gingival zenith level (GZL) of the lateral incisors in an apical-coronal direction relative to the gingival line joining the tangents of the GZP of the adjacent central incisor and canine teeth under healthy conditions...
April 2016: Kathmandu University Medical Journal (KUMJ)
https://www.readbyqxmd.com/read/28158157/successful-long-term-nerve-root-stimulation-for-chronic-neuropathic-pain-a-real-world-single-center-canadian-experience
#7
Adrian B Levine, David A Steven, Andrew G Parrent, Keith W MacDougall
BACKGROUND: Spinal cord stimulation (SCS) is a well-established treatment for chronic neuropathic pain in the lower limbs. However, some patients have pain in distributions that are difficult to target specifically and consistently with SCS. This often involves pain in the groin or upper limbs, or pain limited to a specific dermatome. We hypothesized that dorsal nerve root stimulation (DNRS) would provide similar pain relief for these patients, compared to our results using SCS. OBJECTIVES: In this study we report our experience treating patients with chronic neuropathic pain using SCS and DNRS...
February 2017: Pain Physician
https://www.readbyqxmd.com/read/28118199/comparison-of-two-screw-retained-free-gingival-grafting-techniques
#8
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...
January 23, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28116503/genetic-analysis-of-a-mouse-cross-implicates-an-anti-inflammatory-gene-in-control-of-atherosclerosis-susceptibility
#9
Norman E Garrett, Andrew T Grainger, Jing Li, Mei-Hua Chen, Weibin Shi
Nearly all genetic crosses generated from Apoe(-/-) or Lldlr(-/-) mice for genetic analysis of atherosclerosis have used C57BL/6 J (B6) mice as one parental strain, thus limiting their mapping power and coverage of allelic diversity. SM/J-Apoe (-/-) and BALB/cJ-Apoe (-/-) mice differ significantly in atherosclerosis susceptibility. 224 male F2 mice were generated from the two Apoe (-/-) strains to perform quantitative trait locus (QTL) analysis of atherosclerosis. F2 mice were fed 5 weeks of Western diet and analyzed for atherosclerotic lesions in the aortic root...
January 23, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28108833/soft-tissue-substitutes-in-non-root-coverage-procedures-a-systematic-review-and-meta-analysis
#10
REVIEW
Kristina Bertl, Maximilian Melchard, Nikolaos Pandis, Michael Müller-Kern, Andreas Stavropoulos
OBJECTIVES: The present systematic review compared the effectiveness of soft tissue substitutes (STSs) and autogenous free gingival grafts (FGGs) in non-root-coverage procedures to increase keratinized tissue (KT) width around teeth. MATERIALS AND METHODS: Included studies fulfilled the following main eligibility criteria: (a) preclinical in vivo or human controlled trials using FGG as control, (b) non-root-coverage procedures, and (c) assessment of KT width. Meta-analysis was performed on the gain in KT width (primary outcome variable) and several secondary variables...
January 20, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28063879/the-effect-of-vishram-a-grass-roots-community-based-mental-health-programme-on-the-treatment-gap-for-depression-in-rural-communities-in-india-a-population-based-study
#11
Rahul Shidhaye, Vaibhav Murhar, Siddharth Gangale, Luke Aldridge, Rahul Shastri, Rachana Parikh, Ritu Shrivastava, Suvarna Damle, Tasneem Raja, Abhijit Nadkarni, Vikram Patel
BACKGROUND: VISHRAM was a community-based mental health programme with the goal of addressing the mental health risk factors for suicide in people from 30 villages in the Amravati district in Vidarbha, central India. We aimed to assess whether implementation of VISHRAM was associated with an increase in the proportion of people with depression who sought treatment (contact coverage). METHODS: A core strategy of VISHRAM was to increase the demand for care by enhancing mental health literacy and to improve the supply of evidence-based interventions for depression and alcohol-use disorders...
January 4, 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28062461/diverse-bacteria-affiliated-with-the-genera-microvirga-phyllobacterium-and-bradyrhizobium-nodulate-lupinus-micranthus-growing-in-soils-of-northern-tunisia
#12
Abdelhakim Msaddak, David Durán, Mokhtar Rejili, Mohamed Mars, Tomás Ruiz-Argüeso, Juan Imperial, José Palacios, Luis Rey
: The genetic diversity of bacterial populations nodulating Lupinus micranthus in five geographical sites from Northern Tunisia was examined. Phylogenetic analyses of fifty isolates based on recA and gyrB gene partial sequences grouped strains in seven clusters, five of which belong to genus Bradyrhizobium (28 isolates), one to Phyllobacterium (2 isolates), and one, remarkably, to Microvirga (20 isolates). The largest Bradyrhizobium cluster (17 isolates) grouped with the B. lupini species and the other five clusters were close to different, recently defined Bradyrhizobium species...
January 6, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28048518/th-cd-209-05-impact-of-spot-size-and-spacing-on-the-quality-of-robustly-optimized-intensity-modulated-proton-therapy-plans-for-lung-cancer
#13
W Liu, S Schild, J Chang, Z Liao, X Ding, Y Hu, J Shen, S Korte, N Sahoo, W Wong, M Herman, M Bues
PURPOSE: To investigate how spot size and spacing affect plan quality, especially, plan robustness and the impact of interplay effect, of robustly-optimized intensity-modulated proton therapy (IMPT) plans for lung cancer. METHODS: Two robustly-optimized IMPT plans were created for 10 lung cancer patients: (1) one for a proton beam with in-air energy dependent large spot size at isocenter (σ: 5-15 mm) and spacing (1.53σ); (2) the other for a proton beam with small spot size (σ: 2-6 mm) and spacing (5 mm)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047366/su-f-j-64-comparison-of-dosimetric-robustness-between-proton-therapy-and-imrt-plans-following-tumor-regression-for-locally-advanced-non-small-cell-lung-cancer-nsclc
#14
C Teng, C Ainsley, B Teo, B Burgdorf, G Janssens, A Berman, W Levin, Y Xiao, L Lin, C Simone, T Solberg
PURPOSE: In the light of tumor regression and normal tissue changes, dose distributions can deviate undesirably from what was planned. As a consequence, replanning is sometimes necessary during treatment to ensure continued tumor coverage or to avoid overdosing organs at risk (OARs). Proton plans are generally thought to be less robust than photon plans because of the proton beam's higher sensitivity to changes in tissue composition, suggesting also a higher likely replanning rate due to tumor regression...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046256/su-f-i-51-ct-mr-image-deformation-the-clinical-assessment-qa-in-target-delineation
#15
C Yang, Y Chen
PURPOSE: To study the deformation effects in CT/MR image registration of head and neck (HN) cancers. We present a clinical indication in guiding and simplifying registration procedures of this process while CT images possessed artifacts. METHODS: CT/MR image fusion provides better soft tissue contrast in intracranial GTV definition with artifacts. However, whether the fusion process should include the deformation process is questionable and not recommended. We performed CT/MR image registration of a HN patient with tonsil GTV and nodes delineation on Varian Velocity™ system...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28029124/node-redeployment-algorithm-based-on-stratified-connected-tree-for-underwater-sensor-networks
#16
Jun Liu, Peng Jiang, Feng Wu, Shanen Yu, Chunyue Song
During the underwater sensor networks (UWSNs) operation, node drift with water environment causes network topology changes. Periodic node location examination and adjustment are needed to maintain good network monitoring quality as long as possible. In this paper, a node redeployment algorithm based on stratified connected tree for UWSNs is proposed. At every network adjustment moment, self-examination and adjustment on node locations are performed firstly. If a node is outside the monitored space, it returns to the last location recorded in its memory along straight line...
December 24, 2016: Sensors
https://www.readbyqxmd.com/read/27994426/modified-coronally-advanced-flap-with-and-without-orthodontic-button-application-in-management-of-multiple-proximate-gingival-recession-defects-a-randomized-clinical-trial
#17
Sumedh Khobragade, Abhay Kolte, Rajashri Kolte, Tushar Shrirao, Anushree Potey
BACKGROUND: Gingival recession indicates oral display of the root surface due to apical movement of gingival margin. Coronally advanced flap (CAF) is often used periodontal plastic surgical technique to accomplish root coverage. The purpose of this clinical trial is to assess and compare the effectiveness of modified CAF with orthodontic button application (CAF+B) and without orthodontic button application (CAF) for the correction of multiple recession defects. MATERIALS AND METHODS: Twenty patients exhibiting bilateral multiple proximate Millers Class I and/or Class II gingival recession defects were included in the study...
October 2016: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/27977825/microsurgical-instruments-in-laterally-moved-coronally-advanced-flap-for-miller-class-iii-isolated-recession-defects-a-randomized-controlled-clinical-trial
#18
Onur Ucak, Mustafa Ozcan, Gulsah Seydaoglu, M Cenk Haytac
The aim of this study was to evaluate the laterally moved coronally advanced flap (LMCAF) technique in which magnified vision was used in conjunction with microsurgical instruments (LMCAF-M), and to compare the results with conventional LMCAF technique (LMCAF-C) in Miller Class III isolated recession-type defects. A total of 50 patients with recessions located at incisors and canines were treated with LMCAF-M or LMCAF-C. Outcome parameters (complete root coverage [CRC] and mean root coverage [MRC]) were assessed 6 months postoperatively...
January 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/27976655/an-assessment-of-bicycle-intervention-to-improve-service-delivery-by-accredited-social-health-activists-in-selected-blocks-of-west-champaran-district-of-bihar
#19
Jyoti Sharma, Preeti Negandhi, Monika Chauhan, Ghanashyam Sethy, Siddharth Reddy, Sutapa B Neogi
BACKGROUND: Several programmatic and logistic issues affect the overall performance of Accredited Social Health Activists (ASHAs). Bihar Government provided bicycles to ASHAs in West Champaran district for increasing coverage of services by improving their mobility. OBJECTIVE: To assess the use of bicycles by ASHAs and it's effect on service delivery. It also captures the perspectives of ASHAs in terms of its utilization for performing tasks. METHODS: A community-based quasi-experimental study was undertaken during March-May 2016...
October 2016: Indian Journal of Public Health
https://www.readbyqxmd.com/read/27912743/str-realigner-a-realignment-method-for-short-tandem-repeat-regions
#20
Kaname Kojima, Yosuke Kawai, Kazuharu Misawa, Takahiro Mimori, Masao Nagasaki
BACKGROUND: In the estimation of repeat numbers in a short tandem repeat (STR) region from high-throughput sequencing data, two types of strategies are mainly taken: a strategy based on counting repeat patterns included in sequence reads spanning the region and a strategy based on estimating the difference between the actual insert size and the insert size inferred from paired-end reads. The quality of sequence alignment is crucial, especially in the former approaches although usual alignment methods have difficulty in STR regions due to insertions and deletions caused by the variations of repeat numbers...
December 3, 2016: BMC Genomics
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