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https://www.readbyqxmd.com/read/29142868/protrusive-maxillomandibular-fixation-for-intracapsular-condylar-fracture-a-report-of-two-cases
#1
Yeong Kon Jeong, Won-Jong Park, Il Kyung Park, Gi Tae Kim, Eun Joo Choi
Clinical limitations following closed reduction of an intracapsular condylar fracture include a decrease in maximum mouth opening, reduced range of mandibular movements such as protrusion/lateral excursion, and reduced occlusal stability. Anteromedial and inferior displacement of the medial condyle fragment by traction of the lateral pterygoid muscle can induce bone overgrowth due to distraction osteogenesis between the medial and lateral condylar fragments, causing structural changes in the condyle. In addition, when conventional maxillomandibular fixation (MMF) is performed, persistent interdental contact sustains masticatory muscle hyperactivity, leading to a decreased vertical dimension and premature contact of the posterior teeth...
October 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/29136422/transmission-as-a-basic-process-in-microbial-biology-lwoff-award-prize-lecture
#2
Fernando Baquero
Transmission is a basic process in biology and evolution, as it communicates different biological entities within and across hierarchical levels (from genes to holobionts) both in time and space. Vertical descent, replication, is transmission of information across generations (in the time dimension), and horizontal descent is transmission of information across compartments (in the space dimension). Transmission is essentially a communication process that can be studied by analogy of the classic information theory, based on 'emitters', 'messages' and 'receivers'...
November 1, 2017: FEMS Microbiology Reviews
https://www.readbyqxmd.com/read/29126770/effects-of-unilateral-vertical-mandibular-distraction-osteogenesis-on-airway-anatomy-in-children-with-hemifacial-microsomia
#3
Navid Pourtaheri, Derek Z Wang, Srinivas M Susarla, Gerhard S Mundinger, Anand R Kumar
PURPOSE: To assess the two- and three-dimensional airway changes following unilateral vertical mandibular distraction osteogenesis (vMDO) in patients with hemifacial microsomia (HFM). METHODS: A retrospective evaluation was performed for consecutive patients over an 18-month period with HFM and with Kaban-Pruzansky Type-II mandibular deformities who underwent unilateral vMDO for correction of vertical mandibular asymmetry. Patients with complete records and a minimum of 12 months of clinical follow-up post-consolidation were included...
October 13, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29124343/anatomical-landmarks-of-mandibular-interforaminal-region-related-to-dental-implant-placement-with-3d-cbct-comparison-between-edentulous-and-dental-mandibles
#4
Elif Sener, Erinc Onem, Gulcan Coskun Akar, Figen Govsa, Mehmet Asim Ozer, Yelda Pinar, Ali Mert, B Guniz Baksi Sen
BACKGROUND: Anterior mandibular (interforaminal) region is important in implant applications as it serves a basis for neurovascular bedding and holds the prosthesis for patients. Treatment planning for dental implant patients is often complicated by the unknown extent of the anterior loop of the neurovascular bundle. Anatomical structures including mandibular incisive canal (MIC) and lingual foramen (LF) should also be examined as part of the detailed analysis for their neurovascular structures...
November 9, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29122570/relationships-between-facial-divergence-and-dmd-parameters
#5
Abdelali Halimi, Hicham Benyahia, Mohamed-Faouzi Azeroual, Loubna Bahije, Fatima Zaoui
INTRODUCTION: The aim of this study was to examine the relationship between facial divergence and the parameters of dentomaxillary discrepancy (DMD), in particular crowding, the curve of Spee and the position of the incisors in the sagittal dimension. MATERIAL AND METHODS: A total of 90 young adult patients was selected from among the Moroccan orthodontic population attending the dentofacial orthopedic department and satisfying the following inclusion criteria: complete permanent dentition and a skeletal class I pattern with no previous orthodontic treatment, no crossbite, no periodontal disease, no mandibular asymmetry and no condylodiscal disunion...
November 6, 2017: International Orthodontics
https://www.readbyqxmd.com/read/29119158/resonance-raman-and-ir-spectroscopy-of-aligned-carbon-nanotube-arrays-with-extremely-narrow-diameters-prepared-with-molecular-catalysts-on-steel-substrates
#6
Sagar Motilal Jain, Federico Cesano, Domenica Scarano, Tomas Edvinsson
Carbon nanotubes (CNTs) are considered promising for a large range of emerging technologies ranging from advanced electronics to utilization as nanoreactors. Here we report a controlled facile synthesis of aligned carbon nanotubes with very small dimensions directly grown on steel grid substrates via two-step catalytic chemical vapor deposition (CCVD) of a molecular catalyst (ferrocene) with ethylene as the carbon source. The system is characterized by resonance Raman spectroscopy and the results show single walled carbon nanotube (SWCNT) arrays composed of 0...
November 9, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29113846/maxillary-and-mandibular-contribution-to-the-establishment-of-class-ii-malocclusion-in-an-adult-lebanese-population
#7
Nadine El Hajj, Nayla Bassil-Nassif, Alain Tauk, Carole Mouhanna-Fattal, Joseph P Bouserhal
INTRODUCTION: The main aim of this study was to describe the contribution of the maxilla and the mandible to the establishment of a Class II skeletal malocclusion in an adult Lebanese population. Secondary aims were to detect the presence of sex-based dimorphism and to study the influence of the vertical dimension on the Class II skeletal pattern. MATERIAL AND METHOD: A sample of 90 adults in skeletal Class II was recruited and equally distributed according to sex and vertical typology...
November 4, 2017: International Orthodontics
https://www.readbyqxmd.com/read/29105023/mandibular-response-after-rapid-maxillary-expansion-in-class-ii-growing-patients-a-pilot-randomized-controlled-trial
#8
Roberta Lione, Valerio Brunelli, Lorenzo Franchi, Chiara Pavoni, Bernardo Quiroga Souki, Paola Cozza
BACKGROUND: The aim of this pilot randomized controlled trial (RCT) was to evaluate the sagittal mandibular response induced by rapid maxillary expansion (RME) therapy in mixed dentition patients with class II malocclusion, comparing the effects of bonded RME and banded RME with a matched untreated class II control group. METHODS: This RCT was designed in parallel with an allocation ratio of 1:1:1. The sample consisted of 30 children with a mean age of 8.1 ± 0...
November 6, 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/29097545/high-speed-plasmonic-modulator-in-a-single-metal-layer
#9
Masafumi Ayata, Yuriy Fedoryshyn, Wolfgang Heni, Benedikt Baeuerle, Arne Josten, Marco Zahner, Ueli Koch, Yannick Salamin, Claudia Hoessbacher, Christian Haffner, Delwin L Elder, Larry R Dalton, Juerg Leuthold
Plasmonics provides a possible route to overcome both the speed limitations of electronics and the critical dimensions of photonics. We present an all-plasmonic 116-gigabits per second electro-optical modulator in which all the elements-the vertical grating couplers, splitters, polarization rotators, and active section with phase shifters-are included in a single metal layer. The device can be realized on any smooth substrate surface and operates with low energy consumption. Our results show that plasmonics is indeed a viable path to an ultracompact, highest-speed, and low-cost technology that might find many applications in a wide range of fields of sensing and communications because it is compatible with and can be placed on a wide variety of materials...
November 3, 2017: Science
https://www.readbyqxmd.com/read/29073951/cardiac-effects-of-highly-active-antiretroviral-therapy-in-perinatally-hiv-infected-children-the-chaart-2-study
#10
MULTICENTER STUDY
Steven E Lipshultz, James D Wilkinson, Bruce Thompson, Irene Cheng, David A Briston, William T Shearer, E John Orav, Joslyn A Westphal, Tracie L Miller, Steven D Colan
BACKGROUND: Before the introduction of highly active antiretroviral therapy (HAART), cardiac mortality and morbidity were common in HIV-infected children. OBJECTIVES: This study sought to identify long-term cardiovascular effects of HAART in HIV-infected children. METHODS: The CHAART-2 (HAART-Associated Cardiotoxicity in HIV-Infected Children) study prospectively compared 148 echocardiograms from 74 HAART-exposed children to 860 echocardiograms from 140 HAART-unexposed but HIV-infected children from the Pulmonary and Cardiac Complications of Vertically Transmitted HIV Infection (P(2)C(2) HIV) study...
October 31, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29073362/effectiveness-of-contour-augmentation-with-guided-bone-regeneration-10-year-results
#11
V Chappuis, L Rahman, R Buser, S F M Janner, U C Belser, D Buser
In aesthetic sites, the integrity of the facial bone wall dimension in the anterior maxilla is jeopardized by physiologic and structural changes postextraction. An effective regenerative protocol is key to reestablish and maintain the hard and soft tissue dimensions over time. The present prospective case series study examined the effectiveness of early implant placement with simultaneous contour augmentation through guided bone regeneration with a 2-layer composite graft in postextraction single-tooth sites over an observation period of 10 y among 20 patients...
October 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/29069174/the-locus-of-health-oversight-in-brazil-s-unified-health-system-a-place-between-the-knowledge-and-the-practices-of-social-mobilization
#12
Valcler Rangel Fernandes, Zélia Profeta da Luz, Annibal Coelho de Amorim, Juraci Vieira Sérgio, José Paulo Vicente da Silva, Marcia Correa E Castro, Maurício Monken, Grácia Maria de Miranda Gondim
Supervision of a health system presupposes keeping an attentive eye on the health situation of populations, so as to understand health, illness and healthcare as indissociable manifestations of human existence. Taking this point of view, this article examines health practices from the basis of some of their processes of communication. These are markedly professional-centered in their logic, with their emphasis on scientific, vertical and authoritarian discourse, predominantly in the spaces of the Unified Health System (SUS)...
October 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/29065012/preferred-retinal-locus-locations-in-age-related-macular-degeneration
#13
Murat Erbezci, Taylan Ozturk
PURPOSE: An evaluation of the preferred retinal locus (PRL) in patients with age-related macular degeneration and a central scotoma is becoming a standard of care in the practice of low-vision rehabilitation. This is a retrospective study of PRL specifications and whether they have a correlation with the best-corrected visual acuities of patients with age-related macular degeneration. METHODS: Seventy-two patients with macular degeneration (144 eyes) were included in the study...
October 23, 2017: Retina
https://www.readbyqxmd.com/read/29063605/disturbance-of-verticality-perception-and-postural-dysfunction-in-parkinson-s-disease
#14
K A Schindlbeck, W Naumann, A Maier, F Ehlen, F Marzinzik, F Klostermann
OBJECTIVES: Verticality perception is known to be abnormal in Parkinson's disease (PD), but in which stage respective dysfunctions arise and how they relate to postural disorders remains to be settled. These issues were studied with respect to different dimensions of the subjective visual vertical (SVV) in relation to clinical parameters of postural control. MATERIALS & METHODS: All participants had to orientate a luminous line at random planar orientations to a strictly vertical position using an automated operator system...
October 23, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/29061918/controlling-the-vertical-dimension
#15
EDITORIAL
Robert G Keim
No abstract text is available yet for this article.
July 2017: Journal of Clinical Orthodontics: JCO
https://www.readbyqxmd.com/read/29060254/protein-patterning-using-germanium-as-a-sacrificial-layer
#16
Bochao Lu, Michel M Maharbiz
With the rise of microfluidic diagnostics, there is a need for more efficient methods of patterning surface-attached moieties, including proteins like antibodies, onto microchannel surfaces. This arises because almost all of the solvents and processes used for surface-attachment chemistries (or their payloads) are incompatible with sacrificial layers usually photoresist during microfabrication, rendering it difficult to easily pattern active chemistry onto a surface in manufacture scale. We present a simple method, based on thin film germanium dissolution, which is compatible with both modern nanolithographic techniques and surface chemistries...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29058096/craniofacial-height-in-relation-to-cross-sectional-maxillary-and-mandibular-morphology
#17
Anna Klinge, Karin Becktor, Christina Lindh, Jonas P Becktor
BACKGROUND: In order to gain a better understanding of how growth of the alveolar bone is linked to the vertical development of the face, the purpose of this study was to investigate if there is an association between the cross-sectional morphology of the maxillary and mandibular bodies with the craniofacial height, using images from cone beam computed tomography (CBCT). METHODS: From 450 pre-treatment CBCT scans, 180 were selected to be included in the study. Lateral head images were generated from the CBCT scans and were used to categorise subjects into three groups based on their vertical craniofacial height...
October 23, 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/29056302/single-pass-four-throw-pupilloplasty-postoperative-mydriasis-and-fundus-visibility-in-pseudophakic-eyes
#18
Dhivya Ashok Kumar, Amar Agarwal, Maheswari Srinivasan, Jyothi Narendrakumar, Akshaya Mohanavelu, Keerthana Krishnakumar
PURPOSE: To analyze the pharmacological mydriasis and the consequent fundus visibility after single-pass 4-throw pupilloplasty in pseudophakic eyes. SETTING: Dr. Agarwal's Eye Hospital, Chennai, India. DESIGN: Comparative case series. METHODS: Patients with bilateral pseudophakia with single-pass 4-throw pupilloplasty in 1 eye (study) and no single-pass 4-throw in the fellow eye (control) were included. The pupil measurements were analyzed before and after the instillation of mydriatics (tropicamide 0...
October 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29052241/symbol-grounding-without-direct-experience-do-words-inherit-sensorimotor-activation-from-purely-linguistic-context
#19
Fritz Günther, Carolin Dudschig, Barbara Kaup
Theories of embodied cognition assume that concepts are grounded in non-linguistic, sensorimotor experience. In support of this assumption, previous studies have shown that upwards response movements are faster than downwards movements after participants have been presented with words whose referents are typically located in the upper vertical space (and vice versa for downwards responses). This is taken as evidence that processing these words reactivates sensorimotor experiential traces. This congruency effect was also found for novel words, after participants learned these words as labels for novel objects that they encountered either in their upper or lower visual field...
October 19, 2017: Cognitive Science
https://www.readbyqxmd.com/read/29049945/the-ages-and-stages-questionnaire-latent-factor-structure-and-growth-of-latent-mean-scores-over-time
#20
Oscar L Olvera Astivia, Barry Forer, Gwenden L Dueker, Candace Cowling, Martin Guhn
BACKGROUND: Very little research exists that looks at the Ages and Stages Questionnaire simultaneously from a modern latent variable point of view and by looking at its psychometric properties over time. AIMS: To explore the latent factor structure of the ASQ using Exploratory Structural Equation Modeling techniques for ordinal data and investigate its change over time using the method of vertical scaling from multidimensional Item Response Theory. STUDY DESIGN: Longitudinal, with the same children being assessed at multiple timepoints...
October 16, 2017: Early Human Development
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