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https://www.readbyqxmd.com/read/28089337/a-procedure-for-directly-measuring-the-physiologic-rest-position-and-occlusal-vertical-dimension
#1
Joseph E Makzoumé
No abstract text is available yet for this article.
January 12, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28086770/social-pediatrics-weaving-horizontal-and-vertical-threads-through-pediatric-residency
#2
Meta van den Heuvel, Maria Athina Tina Martimianakis, Rebecca Levy, Adelle Atkinson, Elizabeth Ford-Jones, Michelle Shouldice
BACKGROUND: Social pediatrics teaches pediatric residents how to understand disease within their patients' social, environmental and political contexts. It's an essential component of pediatric residency training; however there is very little literature that addresses how such a broad-ranging topic can be taught effectively. The aim of this study was to determine and characterize social pediatric education in our pediatric residency training in order to identify strengths and gaps. METHODS: A social pediatrics curriculum map was developed, attending to 3 different dimensions: (1) the intended curriculum as prescribed by the Objectives of Training for Pediatrics of the Royal College of Physicians and Surgeons of Canada (RCPSC), (2) the formal curriculum defined by rotation-specific learning objectives, and (3) the informal/hidden curriculum as reflected in resident and teacher experiences and perceptions...
January 13, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28080023/microbial-nanoscopy-breakthroughs-challenges-and-opportunities
#3
Yves F Dufrêne
Studying the structure, properties, and interactions of microbial cells is key to understanding the functions of the microbiome. Recent advances in nanotechnology have offered new tools to probe microbes at the single-molecule and single-cell levels. In this issue of ACS Nano, Kumar et al. present an atomic force microscopy method that is capable of imaging the nanoscale organization of bacterial proteins in native, curved membranes. This study represents an important step forward in the development of nanoscopy techniques for analyzing biological systems with large curvature and vertical dimensions, such as membrane vesicles and bacterial cells...
January 12, 2017: ACS Nano
https://www.readbyqxmd.com/read/28074956/tunable-superapolar-lotus-to-rose-hierarchical-nanosurfaces-via-vertical-carbon-nanotubes-driven-electrohydrodynamic-lithography
#4
Chiara Busà, Jonathan James Stanley Rickard, Eugene Chun, Yaw Chong, Viroshan Navaratnam, Pola Goldberg Oppenheimer
The development of a robust, cost-effective, scalable and simple technique that enables the design and construction of well-controlled large area superhydrophobic surface structures which can be easily tuned from lotus-leaf to rose-petal state is essential to enable progress in realising the full applied potential of such surfaces. In this study, we introduce the tuneable carbon nanotubes-based electrohydrodynamic lithography (CNT-EHL) to fabricate unique multiscale structured cones and nanohair-like architectures with various periodicities and dimensions, successfully enabling surface energy minimization...
January 11, 2017: Nanoscale
https://www.readbyqxmd.com/read/28073624/european-college-of-orthodontics-commission-of-affiliation-and-titularisation
#5
Alexis Moreau
: Date of birth: 2/8/1982; sex: male. A. PRETREATMENT RECORDS: 25 years; 7/3/2008. DIAGNOSIS: Very severe Class III malocclusion in adult dentition in hyperdivergent facial pattern; Sagittal dimension: skeletal and dental Class II, severe alveolar retrusion of the mandibular incisors, negative overjet (-11mm); transverse dimension: Class III-related bilateral crossbite with no transverse maxillary deficiency; vertical dimension: incisor overbite, increased height of the lower facial third; Teeth missing prior to treatment: 16-26...
January 7, 2017: International Orthodontics
https://www.readbyqxmd.com/read/28059253/coplanar-waveguide-wideband-band-stop-filter-based-on-localized-spoof-surface-plasmons
#6
Zhuo Li, Jia Xu, Chen Chen, Yunhe Sun, Bingzheng Xu, Liangliang Liu, Changqing Gu
In this work, a wideband band-stop plasmonic filter based on localized spoof surface plasmons is reported, which consists of a coplanar waveguide (CPW) and an ultra-thin periodic corrugated metallic strip with defect units at the back of the substrate. Defect units are used to localize the transmission energy along the CPW. Each defect unit can introduce a narrow stop band, and a series of defect units is judiciously designed to form a broadband CPW band-stop filter. The center frequency and bandwidth of the filter can be tuned by the heights and numbers of the defect units...
December 20, 2016: Applied Optics
https://www.readbyqxmd.com/read/28054791/digital-mandibular-arch-restoration-at-an-increased-occlusal-vertical-dimension-in-one-visit
#7
Nancy E Hartrick, Steven R Acker
This case demonstrates how a fully digital technique was used to restore the mandibular arch to proper function and improved esthetics. The initial treatment plan to restore implants replacing the lower right molars had to be altered due to space limitations. A direct deprogrammer was utilized to determine the proper jaw relationship at an acceptable occlusal vertical dimension. A computer-aided design system was employed to digitally create and fabricate implant/abutment-supported cement-retained lithium-disilicate crowns, toothsupported lithium-disilicate crowns, and screw-retained hybrid abutment lithium-disilicate crowns in one visit...
January 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28050319/the-hidden-x-suture-a-technical-note-on-a-novel-suture-technique-for-alveolar-ridge-preservation
#8
Jung-Chul Park, Ki-Tae Koo, Hyun-Chang Lim
PURPOSE: The present study investigated the impact of 2 different suture techniques, the conventional crossed mattress suture (X suture) and the novel hidden X suture, for alveolar ridge preservation (ARP) with an open healing approach. METHODS: This study was a prospective randomized controlled clinical trial. Fourteen patients requiring extraction of the maxillary or mandibular posterior teeth were enrolled and allocated into 2 groups. After extraction, demineralized bovine bone matrix mixed with 10% collagen (DBBM-C) was grafted and the socket was covered by porcine collagen membrane in a double-layer fashion...
December 2016: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28048852/su-f-t-645-to-test-spatial-anddosimetric-accuracy-of-small-cranial-target-irradiation-based-on-1-5-t-mriscans-using-static-arcs-with-mlcdefined-fields
#9
I Brezovich, X Wu, R Popple, S Shen, R Cardan, M Bolding, J Fiveash, J Kraus, S Spencer
PURPOSE: To test spatial and dosimetric accuracy of small cranial target irradiation based on 1.5 T MRI scans using static arcs with MLC-defined fields METHODS: A plastic (PMMA) phantom simulating a small brain lesion was mounted on a GammaKnife headframe equipped with MRI localizer. The lesion was a 3 mm long, 3.175 mm diameter cylindrical cavity filled with MRI contrast. Radiochromic film passing through the cavity was marked with pin pricks at the cavity center. The cavity was contoured on an MRI image and fused with CT to simulate treatment of a lesion not visible on CT...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048720/tu-ab-202-05-gpu-based-4d-deformable-image-registration-using-adaptive-tetrahedral-mesh-modeling
#10
Z Zhong, L Zhuang, X Gu, J Wang, H Chen, X Zhen
PURPOSE: Deformable image registration (DIR) has been employed today as an automated and effective segmentation method to transfer tumor or organ contours from the planning image to daily images, instead of manual segmentation. However, the computational time and accuracy of current DIR approaches are still insufficient for online adaptive radiation therapy (ART), which requires real-time and high-quality image segmentation, especially in a large datasets of 4D-CT images. The objective of this work is to propose a new DIR algorithm, with fast computational speed and high accuracy, by using adaptive feature-based tetrahedral meshing and GPU-based parallelization...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047472/su-g-206-12-the-correlation-between-table-height-and-patient-size-in-ct-a-simple-way-to-properly-position-patients
#11
T Szczykutowicz, E Janssen-Saldivar, D Miller, A Malkus
PURPOSE: Proper patient positioning is essential in CT to ensure automatic exposure control functions properly, noise uniformity, and CT number uniformity. This work describes how table height can be used as a surrogate for proper patient positioning and motivates incorporating table height recommendations as a function of patient size into technologist training programs. METHODS: Scan data were acquired from 551 adult and pediatric patients under IRB approval. The table height, mean anterior-posterior patient dimension, and mean lateral patient dimension were calculated for each patient...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047362/su-f-j-24-setup-uncertainty-and-margin-of-the-exactrac-6d-image-guide-system-for-patients-with-brain-tumors
#12
S Kim, S Oh, J Yea, J Park
PURPOSE: This study evaluated the setup uncertainties for brain sites when using BrainLAB's ExacTrac X-ray 6D system for daily pretreatment to determine the optimal planning target volume (PTV) margin. METHODS: Between August 2012 and April 2015, 28 patients with brain tumors were treated by daily image-guided radiotherapy using the BrainLAB ExacTrac 6D image guidance system of the Novalis-Tx linear accelerator. DUONTM (Orfit Industries, Wijnegem, Belgium) masks were used to fix the head...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046800/su-f-j-40-evaluation-of-sensitivity-of-the-automatic-matching-between-cone-beam-ct-image-and-simulation-ct-image-in-truebeam-2-0-imaging-system-6dof-considering-different-uncertainty-sources
#13
J Bonaque, J Bautista-Ballesteros, B Ibanez-Rosello, F Lliso, V Carmona, J Gimeno, J Perez-Calatayud
PURPOSE: To estimate the sensitivity of TrueBeam 2.0 Imaging System 6DoF automatic matching tool through the acquisition of cone-beam CT images in different phantoms applying submillimeter translations and rotations of tenths of a degree and registered with image simulation CT. METHODS: To evaluate overall system-wide image, we consider two uncertainties source; First, the uncertainty of the manual phantom displacement (ε_m). This uncertainty is calculated by a digital caliper (0...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045318/non-nutritive-sucking-habits-and-their-effects-on-the-occlusion-in-the-deciduous-dentition-in-children
#14
G M Lopes Freire, J E Espasa Suarez de Deza, I C Rodrigues da Silva, L Butini Oliveira, J M Ustrell Torrent, J R Boj Quesada
AIM: The study evaluated the presence of non-nutritive sucking habits and and their effects on the occlusion in the deciduos dentition in Spanish children. MATERIALS AND METHODS: Study design: Cross-sectional survey. A clinical examination was performed by an experienced examiner in 275 children aged 3 to 6 years and the collected data included the presence of anterior open bite (vertical dimension), unilateral or bilateral posterior crossbite (transverse dimensions), midline deviation and sagittal relationships between incisors, molars and canines...
December 2016: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28043471/relationship-of-normal-aortic-valve-cusp-dimensions-a-tool-to-optimize-cusp-reconstruction-valvuloplasty
#15
Sujata Subramanian, Vsevolod Tikhomirov, Saroja Bharati, Chawki ElZein, David Roberson, Michel N Ilbawi
Outcomes of surgical aortic valvuloplasty hinge primarily on optimal leaflet design. Imprecise valve reconstruction can result in insufficiency or stenosis. Predicting postrepair leaflet parameters from pre- or intraoperative readily measurable valve dimensions could result in improved reconstruction. This study analyzes the relationships between different parameters of the normal aortic valve to establish a method of deriving the optimal dimensions of the reconstructed leaflet following valvuloplasty. Morphologic analysis of the normal aortic valve was performed on 50 autopsy specimens...
July 2016: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28018653/next-generation-freshwater-bioassessment-edna-metabarcoding-with-a-conserved-metazoan-primer-reveals-species-rich-and-reservoir-specific-communities
#16
Nicholas K M Lim, Ywee Chieh Tay, Amrita Srivathsan, Jonathan W T Tan, Jeffrey T B Kwik, Bilgenur Baloğlu, Rudolf Meier, Darren C J Yeo
Freshwater habitats are of high conservation value and provide a wide range of ecosystem services. Effective management requires regular monitoring. However, conventional methods based on direct observation or specimen collection are so invasive, expensive and labour-intensive that frequent monitoring is uncommon. Here, we test whether the evaluation of environmental DNA (eDNA) from water based on a simple protocol can be used for assessing biodiversity. We use universal metazoan primers for characterizing water eDNA across horizontal and vertical spatial dimensions in two reservoirs with known species diversity for two key taxa...
November 2016: Royal Society Open Science
https://www.readbyqxmd.com/read/28013233/the-influence-of-alertness-on-the-spatial-deployment-of-visual-attention-is-mediated-by-the-excitability-of-the-posterior-parietal-cortices
#17
Rebecca E Paladini, René M Müri, Jurka Meichtry, Tobias Nef, Fred W Mast, Urs P Mosimann, Thomas Nyffeler, Dario Cazzoli
With a reduced level of alertness, healthy individuals typically show a rightward shift when deploying visual attention in space. The impact of alertness on the neural networks governing visuospatial attention is, however, poorly understood. By using a transcranial magnetic stimulation twin-coil approach, the present study aimed at investigating the effects of an alertness manipulation on the excitability of the left and the right posterior parietal cortices (PPCs), crucial nodes of the visuospatial attentional network...
December 23, 2016: Cerebral Cortex
https://www.readbyqxmd.com/read/28005890/coherent-artifact-suppression-in-line-field-reflection-confocal-microscopy-using-a-low-spatial-coherence-light-source
#18
Changgeng Liu, Hui Cao, Michael A Choma
Line-field reflection confocal microscopy (LF-RCM) has the potential to add a dimension of parallelization to traditional confocal microscopy while reducing the need for two-axis beam scanning. LF-RCM systems often employ light sources with a high degree of spatial coherence. This high degree of spatial coherence potentially leads to unwanted coherent artifact in the setting of nontrivial sample scattering. Here, we (a) confirm that a coherent artifact is a nontrivial problem in LF-RCM when using spatially coherent light, and (b) demonstrate that such a coherent artifact can be mitigated through the use of reduced spatial coherence line-field sources...
October 15, 2016: Optics Letters
https://www.readbyqxmd.com/read/28005748/cleft-lip-repair-through-the-looking-glass
#19
Peter J Taub, Paulo Piccolo
The goal of cleft lip repair is an anatomic re-creation of the normal lip elements with no vertical discrepancy between the affected and normal sides of the central philtral element. Frequently, the repaired lip appears short in the vertical dimension despite careful preoperative measurements and intraoperative maneuvers. Some may be due to postoperative scar contraction, but some may be due to a failure to consider the internal surface when reconstructing the lip. Much literature has been dedicated to marking and repairing the skin and muscle of the lip; however, scant consideration has been given to careful reapproximation of the mucosal surface...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28003001/molecular-cellular-and-pharmaceutical-aspects-of-bone-grafting-materials-and-membranes-during-maxillary-sinus-lift-procedures-part-1-a-general-overview
#20
Adriano Piatelli, Giovanna Iezzi, Alessandra Giuliani, Carlo Mangano, Licia Manzon, Marco Degidi, Flavia Iaculli, Antonio Scarano, Antonella Filippone, Vittoria Perrotti
Sinus augmentation procedure has been demonstrated to be a highly predictable treatment in posterior maxilla atrophy. All the surgical interventions in the maxillary region require deep knowledge of anatomy and possible anatomical variations. In this article pre-operative and post- operative assessments of sinus cavity as well as novel approaches to deepen our knowledge of the behavior of bone substitute materials are described. The awareness of the patient's morphologic conditions enables exact planning of invasive surgery and aids to avoid complications...
December 21, 2016: Current Pharmaceutical Biotechnology
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