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Journal articles on the topic 'Cuspids – Research'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Dubernard, Charles, Fany Cuminetti, and Pierre Canal. "À propos d’un cas de résorptions radiculaires sévères en orthodontie : quelle étiologie et quelle prise en charge?" L'Orthodontie Française 88, no. 2 (2017): 149–63. http://dx.doi.org/10.1051/orthodfr/2017008.

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Introduction: Root resorptions are, with white spots, some of the inconveniences caused by orthodontic treatments. Although they are rare, they should not be ignored despite the many benefits gained by orthodontic treatment. Contrary to white spots, which are controllable by good dental hygiene, root resorptions can occur despite patient cooperation. Orthodontists should be aware of this phenomenon and make regular radiologic controls a priority for detection “before, during and after” treatment. Material and Method: After literary references, the presentation of the case report will illustrat

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Badros, Ashraf, Dianna Weikel, Andrew Salama, et al. "Osteonecrosis of the Jaw in Multiple Myeloma Patients: Clinical Features and Risk Factors." Journal of Clinical Oncology 24, no. 6 (2006): 945–52. http://dx.doi.org/10.1200/jco.2005.04.2465.

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Purpose To describe the clinical, radiologic, and pathologic features and risk factors for osteonecrosis of the jaw (ONJ) in multiple myeloma (MM) patients. Patients and Methods A retrospective review of 90 MM patients who had dental assessments, including 22 patients with ONJ. There were 62 men; the median age was 61 years in ONJ patients and 58 years among the rest. Prior MM therapy included thalidomide (n = 67) and stem-cell transplantation (n = 72). Bisphosphonate therapy included zoledronate (n = 34) or pamidronate (n = 17) and pamidronate followed by zoledronate (n = 33). Twenty-seven pa

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Barnett, Michael L. "From Chromatograph to Cuspid: Dental Clinical Research and the Future of Technology Transfer." Journal of Dental Research 76, no. 12 (1997): 1812–13. http://dx.doi.org/10.1177/00220345970760120101.

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TANOUE, Hisanori, and Mamoru ARITA. "IN THE CUSPS TOPOGRAPHY FORMED BY SEDIMENTARY WAVES EXPERIMENTAL RESEARCH." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 74, no. 2 (2018): I_877—I_882. http://dx.doi.org/10.2208/kaigan.74.i_877.

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Yang, Xiao Rong, Xue Jing Shen, Min Zhong, and Jiao Xia Lan. "Research on Dynamic Instability of Irregularly-Shaped Arch Bridge Based on Catastrophe Theory." Applied Mechanics and Materials 99-100 (September 2011): 832–37. http://dx.doi.org/10.4028/www.scientific.net/amm.99-100.832.

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According to the characteristic of poor stiffness of V-shaped beams, transverse dynamic instability model of V-shaped is presented by Catastrophe Theory. Mechanism of stability of V-shaped is analyzed. Coordinates of two cusps and instable bifurcation set is derived. Effect of nonlinear coefficient and frequency ratio on amplitude of V-shaped beams are analyzed. When nonlinear coefficient is , continuous change of can arise abrupt change of amplitude. Then the jumping phenomenon can leads destruction of V-shaped beams.

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Esteves, Patrícia R., Karla P. C. Araújo, Carlos E. Ambrósio, et al. "Study of the cardiac left atrioventricular valvar complex in water buffaloes (Bubalus bubalis) of the Jafarabadi breed." Pesquisa Veterinária Brasileira 29, no. 10 (2009): 852–58. http://dx.doi.org/10.1590/s0100-736x2009001000013.

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Atrioventricular valve complex of 30 Jafarabadi water buffaloes, adult males were studied in this research with no heart diseases. The animals were obtained from a slaughterhouse in Brazilian State of Parana. The hearts were opened at the third portion affording access to the valve complex. The complexes had its area, number and type of tendinous cords submitted to analysis. The results showed that the complex is composed by two cusps and four accessory cusps, two or three papillary muscles in which 10-25 tendinous cords fix on the cusps that face the ventricle wall. The total area of the comp

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Venkataraghavan, Karthik, P. Praveen, A. Anantharaj, S. Prathibha Rani, and Murali B. Krishnan. "Bilateral Six Cusped and Three Rooted Mandibular First Molars." World Journal of Dentistry 2, no. 3 (2011): 255–58. http://dx.doi.org/10.5005/jp-journals-10015-1092.

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ABSTRACT Teeth are vertebrate organs that arise from complex and progressive interactions between an ectoderm, the oral epithelium and an underlying mesenchyme. A significant amount of research has focused on determining the processes that initiate tooth development. It is widely accepted that there is a factor (multiple signaling molecules, including BMPs, FGFs, Shh and Wnt proteins) within the tissues of the first branchial arch that is necessary for the development of teeth. A 9-year-old reported to our department with the chief complaint of pain in the lower right back teeth region. On cli

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Wu, Xiaoling, Changhua Chen, Yan Teng, et al. "Theoretical research on the annular intensive relativistic electron motion focused by coaxial cusped periodic permanent magnetic field." Physics of Plasmas 27, no. 5 (2020): 053104. http://dx.doi.org/10.1063/5.0003745.

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Tavakolizadeh, Sara, Mohammad Javad Razaghi, Pedram Pakravan, Majid Sedaghat Monfared, Elaheh Beyabanaki, and Rahab Ghoveizi. "Effect of multiple pouring on the accuracy of casts made using 3D-printed custom trays with different spacer thicknesses: A research study." Journal of Dental Research, Dental Clinics, Dental Prospects 14, no. 1 (2020): 37–40. http://dx.doi.org/10.34172/joddd.2020.005.

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Background . This study aimed to evaluate the effect of different pouring times and spacer thicknesses on the three-dimensional accuracy of casts made of 3D-printed custom trays. Methods. A partial edentulous maxillary model was scanned for fabricating custom acrylic trays. Twenty custom trays were created using a CAD/CAM system and divided into two groups in terms of their spacer thicknesses (2 mm and 4 mm). All the trays were designed with 2-mm thickness, multiple retentive holes measuring 2 mm in diameter, and three interior seating stops (two on the edentulous ridge and one on the incisal

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Pitman, Sebastian J., Deirdre E. Hart, and Marwan H. Katurji. "Application of UAV techniques to expand beach research possibilities: A case study of coarse clastic beach cusps." Continental Shelf Research 184 (August 2019): 44–53. http://dx.doi.org/10.1016/j.csr.2019.07.008.

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Solache-Berrocal, Guillermo, Ana María Barral-Varela, Sheila Areces-Rodríguez, et al. "Correlation of Micro-Computed Tomography Assessment of Valvular Mineralisation with Histopathological and Immunohistochemical Features of Calcific Aortic Valve Disease." Journal of Clinical Medicine 9, no. 1 (2019): 29. http://dx.doi.org/10.3390/jcm9010029.

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Aortic valve stenosis is a serious disease with increasing prevalence in developed countries. Research aimed at uncovering the molecular mechanisms behind its main cause, aortic valve calcification, is thus crucial for the development of future therapies. It is frequently difficult to measure the extent of mineralisation in soft tissues and some methods require the destruction of the sample. Micro-computed tomography (µCT), a non-destructive technique, was used to quantify the density and volume of calcium deposits on cusps from 57 explanted aortic valves. Conventional and immunostaining techn

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Ghazy, Tamer, Claudia Dittfeld, Anett Jannasch, et al. "Subclinical Endocarditis Might be a Hidden Trigger of Early Prosthetic Valve Calcification: A Histological Study." Heart Surgery Forum 21, no. 4 (2018): E300—E304. http://dx.doi.org/10.1532/hsf.1740.

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Objective: Despite various improvements in valve prosthetics, early valve deterioration still occurs, leading to prosthetic failure. Studying the early phase of this deterioration is quite difficult, as the prosthesis to be examined is almost always explanted only after extensive deterioration. The objective of this research is to study the pathology of early valve deterioration in an early stage in order to reveal the possible trigger of the process. Methods: Three cusps of the same type of bovine pericardium valve prosthesis underwent comparative examination. Two cusps (cusps 1 and 2)

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Ma, Xinhui, Catherine Martin, Grant McIntyre, Ping Lin, and Peter Mossey. "Digital Three-Dimensional Automation of the Modified Huddart and Bodenham Scoring System for Patients with Cleft Lip and Palate." Cleft Palate-Craniofacial Journal 54, no. 4 (2017): 481–86. http://dx.doi.org/10.1597/15-340.

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Objective The modified Huddart and Bodenham scoring system assesses maxillary arch constriction and surgical outcomes in cleft lip and palate. This project automates modified Huddart and Bodenham scoring using three-dimensional digital models. Design Development of a novel software tool. Setting The design, construction, development, and testing of the system was carried out at Dundee Dental Hospital. Patients, Participants Subjects with cleft lip and palate. Interventions A plug-in has been developed using an open three-dimensional development platform: Rhinoceros, version 5 ( http://www.rhin

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Cheng, Allen, Paul Dagum, and D. Craig Miller. "Aortic root dynamics and surgery: from craft to science." Philosophical Transactions of the Royal Society B: Biological Sciences 362, no. 1484 (2007): 1407–19. http://dx.doi.org/10.1098/rstb.2007.2124.

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Since the fifteenth century beginning with Leonardo da Vinci's studies, the precise structure and functional dynamics of the aortic root throughout the cardiac cycle continues to elude investigators. The last five decades of experimental work have contributed substantially to our current understanding of aortic root dynamics. In this article, we review and summarize the relevant structural analyses, using radiopaque markers and sonomicrometric crystals, concerning aortic root three-dimensional deformations and describe aortic root dynamics in detail throughout the cardiac cycle. We then compar

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Chivers, Sian C., Carine Pavy, Ricky Vaja, Cesare Quarto, Olivier Ghez, and Piers E. F. Daubeney. "The Ozaki Procedure With CardioCel Patch for Children and Young Adults With Aortic Valve Disease: Preliminary Experience – a Word of Caution." World Journal for Pediatric and Congenital Heart Surgery 10, no. 6 (2019): 724–30. http://dx.doi.org/10.1177/2150135119878108.

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Background: The Ozaki procedure is a surgical technique for patients with significant aortic stenosis or regurgitation or both where valve repair cannot be performed. Individual cusps are cut from glutaraldehyde-treated autologous pericardium or bovine pericardium and implanted into the aortic valve position. Encouraging results have been reported within the adult population. There are limited published data on success of this procedure in younger patients. Methods: We present a series of five children and young adults who underwent the Ozaki procedure with neoaortic valve cusps made from Card

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Chen, Zezhong C., and Dejun Song. "A Practical Approach to Generating Accurate Iso-Cusped Tool Paths for Three-Axis CNC Milling of Sculptured Surface Parts." Journal of Manufacturing Processes 8, no. 1 (2006): 29–38. http://dx.doi.org/10.1016/s1526-6125(06)70099-8.

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Vella, Massimiliano, Paolo Cressoni, Cinzia Tripicchio, Eleonora Mainardi, and Luca Esposito. "Early Treatment with a Slow Maxillary Ni–Ti Leaf Springs Expander." Applied Sciences 11, no. 10 (2021): 4541. http://dx.doi.org/10.3390/app11104541.

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The aim of this brief report is to analyse the available literature on the clinical outcomes of a particular appliance for slow maxillary expansion that consists of one or more nickel–titanium springs. Materials and methods: The main medical databases (Scopus, Web of Sciences, Pubmed and Google Scholar) were scanned up to January 2020 using “slow maxillary expan*”, “slow palatal expan*”, “leaf expander” and “NiTi Palatal Expander” as keywords. Skeletal changes in the maxilla after expansion with the Leaf Expander (L.E.) or similar appliances were taken into consideration while reviewing releva

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Shikhmurzaev, Yulii D. "Moving contact lines and dynamic contact angles: a ‘litmus test’ for mathematical models, accomplishments and new challenges." European Physical Journal Special Topics 229, no. 10 (2020): 1945–77. http://dx.doi.org/10.1140/epjst/e2020-900236-8.

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Abstract After a brief overview of the ‘moving contact-line problem’ as it emerged and evolved as a research topic, a ‘litmus test’ allowing one to assess adequacy of the mathematical models proposed as solutions to the problem is described. Its essence is in comparing the contact angle, an element inherent in every model, with what follows from a qualitative analysis of some simple flows. It is shown that, contrary to a widely held view, the dynamic contact angle is not a function of the contact-line speed as for different spontaneous spreading flows one has different paths in the contact ang

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Braga, Luan Ribeiro, Leonard Euler Andrade Gomes do Nascimento, and Matheus Melo Pithon. "Transmigrated mandibular canines: clinical considerations and orthodontic biomechanics for the approach of orthodontic traction. A scoping review." Research, Society and Development 10, no. 3 (2021): e21210313376. http://dx.doi.org/10.33448/rsd-v10i3.13376.

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This scoping review aims to identify the clinical considerations and orthodontics biomechanics of applying the orthodontic traction approach to transmigrated mandibular canines. The search strategy followed the PRISMA for scoping reviews and was based on six databases, Cochrane C.R.C. Trials, BVS, PubMed (NLM), Google Scholar, Web of Science, and SCOPUS, and included articles published as recently as February 2021. The records had to identify lower canines traction protocols and outcomes. The publications obtained had to meet criteria for the structure of the research and bibliography. The sea

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Nicholls, Robert, and Norman Webber. "CHARACTERISTICS OF SHINGLE BEACHES WITH REFERENCE TO CHRISTCHURCH BAY, S. ENGLAND." Coastal Engineering Proceedings 1, no. 21 (1988): 142. http://dx.doi.org/10.9753/icce.v21.142.

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The rapid recession of the shingle bank of Hurst Beach (up to 3.5m/yr) makes it an excellent natural laboratory for the study of the factors which influence the stability of shingle beaches. Studies have included: the significance of long period, high energy, swell waves - the classification and quantification of overwash processes - run-up and seepage characteristics - the effect of settlement of the underlying strata - and the implications for practices in shingle nourishment. The studies have revealed the distinctive character of shingle beaches as compared with the more fully researched sa

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Bhudolia, Somen K., Goram Gohel, Jayaram Kantipudi, Kah Fai Leong, and Robert J. Barsotti. "Ultrasonic Welding of Novel Carbon/Elium® Thermoplastic Composites with Flat and Integrated Energy Directors: Lap Shear Characterisation and Fractographic Investigation." Materials 13, no. 7 (2020): 1634. http://dx.doi.org/10.3390/ma13071634.

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The current research work presents a first attempt to investigate the welding attributes of Elium® thermoplastic resin and the fusion bonding using ultrafast ultrasonic welding technique. The integrated energy director (ED) polymer-matrix composites (PMCs) panel manufacturing was carried out using the Resin Transfer Moulding (RTM) technique and the scheme is deduced to manufacture a bubble-free panel. Integrated ED configurations and flat specimens with Elium® film of different thickness at the interface were investigated for ultrasonic welding optimization. Optimised weld time for integrated

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Ackermans, Nicole L. "The history of mesowear: a review." PeerJ 8 (February 13, 2020): e8519. http://dx.doi.org/10.7717/peerj.8519.

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Published mesowear data was reviewed from the year 2000 to November 2019 (211 publications, 707 species, 1,396 data points). Mesowear is a widely applied tooth wear technique that can be used to infer a herbivore’s diet by scoring the height and sharpness of molar tooth cusps with the naked eye. Established as a fast and efficient tool for paleodiet reconstruction, the technique has seen multiple adaptations, simplifications, and extensions since its establishment, which have become complex to follow. The present study reviews all successive changes and adaptations to the mesowear technique in

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Scenna, L. B., S. B. García de la Rosa, and J. M. Díaz de Astarloa. "Trophic ecology of the Patagonian skate, Bathyraja macloviana, on the Argentine continental shelf." ICES Journal of Marine Science 63, no. 5 (2006): 867–74. http://dx.doi.org/10.1016/j.icesjms.2006.02.002.

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Abstract The diet, feeding strategy, and dentition of the Patagonian skate, Bathyraja macloviana, on the northern continental shelf of Argentina were studied from specimens collected during research cruises in September and October 2001. Of a total of 81 stomachs examined, only 3.7% were empty. Cumulative prey curves showed that sample sizes were adequate to describe the main prey items of the diet. Quantitative analysis, a graphical method, and trophic niche breadth indicated the species to be a specialized feeder. The most important prey items were polychaetes, followed by gammarid amphipods

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Chaus, N. I., V. V. Kislukhin, S. S. Smirnov, et al. "Simultaneous Separate Assessment of the Cardiac and LVAD Output." International Journal of Artificial Organs 20, no. 7 (1997): 383–88. http://dx.doi.org/10.1177/039139889702000706.

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The electroimpedance indicators’ dilution (EIID) technique was used to study the possibility of a simultaneous separate assessment of the biological heart and LVAD performance in the position of LVB. The experimental part of the research was performed on 5 dogs; an artificial ventricle of the pulsing type (USA) with cusps was used as a pump. The clinical part of the work was conducted on 5 patients after open-heart surgery who had the clinical picture of postcardiotomy cardiogenic shock; a centrifugal pump “Biopump” (Medtronic, USA) was used. The authors have shown a principally important poss

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Sadovoy, A. N. "Institute of Private Land in Cross-Border Zones of Southern Russia: Ethnic Aspect." Bulletin of Kemerovo State University 22, no. 3 (2020): 664–76. http://dx.doi.org/10.21603/2078-8975-2020-22-3-664-676.

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The paper presents intermediate results of a comparative analysis of land reforms conducted on the cusps of XIX– XX and XX–XXI centuries. It focuses on their medium- and long-term impact on the native territories of Russia’s southern frontier. The article describes the correlation of state and ethnic interests in land management and formation of the private land institute. The research owes its relevance to the problems of the system of regional ethnological monitoring, as well as that of the effect of the national and agricultural state policy on the scientific forecasting of the changes in t

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Bhudolia, Somen K., Goram Gohel, Kah Fai Leong, and Robert J. Barsotti. "Investigation on Ultrasonic Welding Attributes of Novel Carbon/Elium® Composites." Materials 13, no. 5 (2020): 1117. http://dx.doi.org/10.3390/ma13051117.

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Joining large and complex polymer–matrix composite structures is becoming increasingly important in industries such as automobiles, aerospace, sports, wind turbines, and others. Ultrasonic welding is an ultra-fast joining process and also provides excellent joint quality as a cost-effective alternative to other joining processes. This research aims at investigating the welding characteristics of novel methyl methacrylate Elium®, a liquid thermoplastic resin. Elium® is the first of its kind of thermoplastic resin, which is curable at room temperature and is suitable for mass production processe

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Huespe, A. V., E. Gómez-Simes, and C. T. Pastor-de-Ward. "Gastric mill morphology in the genus Cyrtograpsus (Crustacea: Decapoda: Grapsoidea: Varunidae)." Journal of the Marine Biological Association of the United Kingdom 88, no. 2 (2008): 311–19. http://dx.doi.org/10.1017/s0025315408000520.

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The gastric mill on the genus Cyrtograpsus (Varunidae) has not been described previously. A morphological comparative study of the gastric mill ossicles within its species (C. angulatus, C. altimanus and C. affinis) was carried out. This research attempts to give new evidence to validate the existence of these three species and to serve as a guide to identify them. Urocardiac (dorsal median tooth shape), zygocardiac (shape and number of ridges and molar processes—cusps and plates—and their arrangement in the lateral teeth) and pectineal (number and shape of accessory teeth) ossicles, and cardi

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Boldyrev, Alexander I., Gennady A. Sukhochev, Alexander A. Boldyrev, Denis V. Silaev, and Vasily N. Sokolnikov. "Achievement of required surface roughnesses in complex profile channels by dynamic combined processing." MATEC Web of Conferences 226 (2018): 01021. http://dx.doi.org/10.1051/matecconf/201822601021.

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At present for processing of complex geometrical channels of workpieces electrochemical dimensional processing, vibro-impact machining and vibro-extruding are widely used. However combined electrochemical mechanical processing, that unites anodic dissolution and plastic flow of material in space and time, provides the required characteristics of surface layer. Local action anodic dissolution changes cold work amount and accelerates dissolution of micro- and macro-cusps, this causes annealing of physical and mechanical parameters in processed segments and accross the whole surface profile the r

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Kostyrenko, Oleksij P., Nataliia I. Vynnyk, Mykhailo M. Koptev, et al. "MINERALIZATION OF TEETH ENAMEL AFTER ERUPTION." Wiadomości Lekarskie 74, no. 6 (2021): 1297–301. http://dx.doi.org/10.36740/wlek202106101.

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The aim: The paper was aimed at the study of the processes of mineralization of the enamel of the permanent tooth after its eruption. Materials and methods: To study the structure of the enamel of permanent teeth has been carried out using light and electron microscopy. The study of the process of the development of the primordia of the permanent teeth involved 10 culled puppies of 30-40 days of age. Microscopic, electron microscopic, immunohistochemical methods of research have been used to study the processes of histogenesis. Results: The studies show that in the postnatal period, the format

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Al-Taesh, Hataw, Abuzer Çelekli, Murat Sucu, and Seyithan Taysi. "Trace elements in patients with aortic valve sclerosis." Therapeutic Advances in Cardiovascular Disease 15 (January 2021): 175394472098598. http://dx.doi.org/10.1177/1753944720985985.

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Background: Aortic valve sclerosis (AVSc) is defined as the thickening and calcification of aortic valve cusps, in the absence of obstruction of ventricular outflow. AVSc is linked with a clear imbalance in some trace elements. Aims: The objective of this study was to investigate the relationship between AVSc and serum levels of iron (Fe), zinc (Zn), selenium (Se), and copper (Cu). Additionally, this research aimed to explore the clinical significance of human serum zinc, selenium, copper, and iron concentrations as a potential new biomarker for AVSc patients and to clarify the pathophysiologi

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Taofiqurohman, Ankiq, and Mochamad Rudyansyah Ismail. "Penilaian Keselamatan Wisata Berdasarkan Parameter Gelombang di Pantai Parigi, Kabupaten Pangandaran Jawa Barat." Jurnal Kelautan Tropis 23, no. 1 (2020): 39. http://dx.doi.org/10.14710/jkt.v23i1.5559.

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Parigi Beach is one of the beach tourism destinations in West Java. Parigi Beach is in Kabupaten Pangandaran where is facing directly to the Indian Ocean; hence the beach wave is high and risks for beach tourism activity. Beach hazard in Parigi Beach is frequent on long holiday seasons. The research aim is to assess beach tourism safety based on wave parameters and find out the cause of danger. The result shows that Parigi Beach is an intermediate rhythmic bar and beach, which average of the breaking wave height reaches to 1,87 meter and occur beach cusps formation. The beach safety levels exh

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NOVAIS JUNIOR, Manoel Itaguacy Leite, Manuella Santos Carneiro ALMEIDA, Camila Helena Machado da COSTA, Tassia Cristina de Almeida Pinto SARMENTO, Luis Ferreira de SOUSA FILHO, and Rosa Helena Wanderley LACERDA. "Development of cleft children’s permanent canines." RGO - Revista Gaúcha de Odontologia 67 (2019). http://dx.doi.org/10.1590/1981-86372019000253520.

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ABSTRACT Objective: Evaluating the development of the permanent cuspids in children from Paraíba with cleft lip and palate applying the Nolla and the Demirjian methods. Methods: A cross-sectional study using an inductive approach and applying a comparative statistical procedure and direct documentation research technique. The universe of the study consisted of children assisted at the orthodontic practice of the Brazilian Association of Dentistry - Paraíba Section. The sample comprised 72 pairs of panoramic radiographs of children with and without cleft lip and palate from the same gender and,

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Raskin, Sarah E., Eric P. Tranby, Sharity Ludwig, Ilya Okunev, Julie Frantsve-Hawley, and Sean Boynes. "Survival of silver diamine fluoride among patients treated in community dental clinics: a naturalistic study." BMC Oral Health 21, no. 1 (2021). http://dx.doi.org/10.1186/s12903-020-01379-x.

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Abstract Background Silver diamine fluoride (SDF) is a minimally-invasive preventive service used in the U.S. to avert and arrest caries since 2014. No studies document survival outcomes based in real world delivery. We analyzed 12-month survival outcomes of SDF applied independently or concurrently with other restorative procedures among a population receiving community dental care. Methods We analyzed data on SDF applications from de-identified dental claims on Oregon Health Plan patients served by Advantage Dental in 2016, who had been seen in 2015 (patient n = 2269; teeth n = 7787). We com

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Desire Octarina, Lia, Tri Endra Untara, and Ema Mulyawati. "Root Canal Treatment of the Maxillary Second Molar with an Root Canal Treatment of the Maxillary Second Molar with an Unusual Morphology: A Case Report Unusual Morphology: A Case Report." Journal of Dentistry Indonesia 27, no. 2 (2020). http://dx.doi.org/10.14693/jdi.v27i2.1123.

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Four rooted maxillary second molar is a rare condition. A research of 1,200 maxillary second molars found only 0.4% of the sample with this condition. In a tooth with two palatal roots, one of them is the normal palatal root, while the other is a supernumerary structure which can be found mesiolingually (radix mesiolingualis) or distolingually (radix distolingualis). Objective: to describes a successful root canal treatment of a maxillary second molar with radix mesiolingualis. Final restoration using a short fiber-reinforced composite as the bottom structure under the onlay composite direct r

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Hulathduwa, S. R. "Some Anatomical Variations of the Coronary Circulation among Sri Lankan Adults." Archives of Current Research International, May 25, 2021, 22–30. http://dx.doi.org/10.9734/acri/2021/v21i230230.

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The coronary circulation has been the centre of focus of many anatomists, pathologists, cardiologists, cardiothoracic surgeons, physiologists and even the general public especially since the introduction of coronary angiography during the 1960's. Though a large number of data regarding the coronary circulation of the Western populations are available, research about coronary circulation of the Sri Lankan population is comparatively rare. This study comprises of data from 150 autopsy specimens of adult Sri Lankans died due to non-cardiac causes. 99.3% had a tricuspid aortic valve while only in

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Flanagan, Dennis. "Rationale for Definitive Mini Dental Implant Treatment." Journal of Oral Implantology, July 14, 2020. http://dx.doi.org/10.1563/aaid-joi-d-19-00317.

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Mini dental implants can be used to support crowns and partial and complete dentures in compromised edentulous sites. Lack of bone width or site length may be treated with mini implants. Mini implants have less percutaneous exposure and displacement that may reduce complications. Nonetheless, mini implants transmit about twice the load to the supporting bone and thus control of occlusal loading is important. In fixed prosthetics, rounded flat cusps, splinting, implant protective occlusal schemes and only placement in dense bone sites are features of successful mini implant treatment. With remo

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Erickson, David W., Choon S. Tan, and Michael Macrorie. "Characterization and Impact of Secondary Flows in a Discrete Passage Centrifugal Compressor Diffuser." Journal of Turbomachinery 141, no. 7 (2019). http://dx.doi.org/10.1115/1.4042646.

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Truncating the exit of a discrete passage centrifugal compressor diffuser is observed to enhance a research compressor's stall line. By interrogating the experimental data along with a set of well-designed Reynolds-Averaged Navier–Stokes computations, this improvement is traced to the reduced impact of secondary flows on the truncated diffuser's boundary layer growth. The secondary flow system is characterized by counter-rotating streamwise vortex pairs that persist throughout the diffuser passage. The vortices originate from two sources: flow nonuniformity at the impeller exit and separation

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Anousakis-Vlachochristou, N., M. Katsa, A. Panara, et al. "Investigation of the optimal rabbit model for aortic valve stenosis." European Heart Journal 41, Supplement_2 (2020). http://dx.doi.org/10.1093/ehjci/ehaa946.2318.

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Abstract Background/Purpose Anatomically, hemodynamically relevant and validated animal models for aortic valve stenosis are of great need. Drolet rabbit model with tricuspid anatomy produced conflicting results for unclear reasons. We hypothesized that limitations concentrate in the regimen administration. We sought to evaluate multiple doses, ways of administration and time periods. Methods We included New Zealand rabbits in 4 groups: Group A (Drolet): was fed with normal chaw (nc)+0.5% cholesterol (chol)+3500 IUs Vitamin D2/kg (VD2, ergocalciferol, Sigma) in water daily for 12 weeks (wks),

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Westermann, Dirk, Sebastian Ludwig, Daniel Kalbacher, et al. "Prevention of coronary obstruction in patients at risk undergoing transcatheter aortic valve implantation: the Hamburg BASILICA experience." Clinical Research in Cardiology, June 22, 2021. http://dx.doi.org/10.1007/s00392-021-01881-4.

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Abstract Objectives This study aimed to assess the clinical outcome of the bioprosthetic or native aortic scallop intentional laceration to prevent iatrogenic coronary obstruction (BASILICA) technique in a single-center patient cohort considered at high or prohibitive risk of transcatheter aortic valve implantation (TAVI)-induced coronary obstruction. Methods Between October 2019 and January 2021, a total of 15 consecutive patients (age 81.0 [78.1, 84.4] years; 53.3% female; EuroSCORE II 10.6 [6.3, 14.8] %) underwent BASILICA procedure prior to TAVI at our institution. Indications for TAVI wer

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Movileanu, I., D. Nistor, K. Brinzaniuc, et al. "The VALVE REGEN project. Developing an innovative tissue engineered heart valve, in vitro and in vivo testing – preliminary results." European Heart Journal 41, Supplement_2 (2020). http://dx.doi.org/10.1093/ehjci/ehaa946.3628.

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Abstract Background Regenerative Medicine and Tissue Engineering are the grounds on which multidisciplinary teams aspire to obtain the perfect valvular substitute, which overcomes shortcomings of the present prostheses. Purpose Was to obtain a tissue engineered heart valve (TEHV) by repopulating with valvular resident cells – endothelial (EC) and fibroblasts (FB) a decellularized heart valve scaffold. Then their functionality and behavior was assessed in vitro and in vivo. Methods This study is part of a research grant approved by the Ethics Committee of the University. Six ovine pulmonary val

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Pelekhan, В. L., М. М. Rozhko, and L. І. Pelekhan. "STUDY OF THE EFFECTIVENESS OF ORTHOPEDIC TREATMENT OF PATIENTS WITH COMPLETE REMOVABLE PLATE PROTHESES ON THE LOWER JAW." Art of Medicine, January 5, 2021, 76–81. http://dx.doi.org/10.21802/artm.2020.4.16.76.

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The manufacture of compete removable plate dentures remains a common method of treating patients with complete absence of teeth. According to Labunets, the need for full removable prosthetics in age groups over 50 years is from 23.8% to 80%. Depending on the chosen method of manufacturing a complete removable plate prosthesis, 30-60% of patients are dissatisfied with the functioning of orthopedic structures. According to the results of the research conducted by O.Ya. Zablotska, the psycho-emotional level of satisfaction with a complete removable laminar denture decreased from the first w

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Henry, M., S. Fadnes, L. Lovstakken, W. Mawad, L. Mertens, and S. Nyrnes. "Bicuspid aortic valve flow dynamics using blood speckle tracking in children." European Heart Journal - Cardiovascular Imaging 22, Supplement_1 (2021). http://dx.doi.org/10.1093/ehjci/jeaa356.184.

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Abstract Funding Acknowledgements Type of funding sources: Foundation. Main funding source(s): Labatt Family Heart Centre Background Bicuspid aortic valves (BAV) are the most common form of congenital heart disease with a prevalence of up to 2%. Fusion of the aortic cusps result in complex flow patterns in the aortic root which may contribute to the risk of progressive dilation. Imaging these patterns with conventional echocardiography is challenging due to the angle dependency of colour Doppler. Blood speckle tracking (BST) is a novel method based on high-frame rate ultrasound that is less an

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Niepmann, S. T., M. Lenart, N. Willemsen, et al. "Dissolving cholesterol crystals reduces aortic valve stenosis development in mice." European Heart Journal 41, Supplement_2 (2020). http://dx.doi.org/10.1093/ehjci/ehaa946.3719.

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Abstract Background Aortic valve stenosis (AS) is the most common valve disease worldwide and is associated with a very high morbidity and mortality. Until today, aortic valve replacement is the only therapeutic option available. Analysis of explanted human aortic valves has shown that atherosclerosis-like lesions, that contain cholesterol crystals (CC), are present in stenotic aortic valve cusps. It has been demonstrated that CCs can activate the NLRP3 inflammasome and hereby trigger a complex, IL-1b driven, inflammatory response. 2-hydroxypropyl-β-cyclodextrin (CD) is a cyclic oligosaccharid

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Zhiduleva, E., O. Irtyuga, P. Murtazalieva, et al. "P5991Cellular mechanisms of aortic valve calcification in primary human valvular interstitial cell culture." European Heart Journal 40, Supplement_1 (2019). http://dx.doi.org/10.1093/eurheartj/ehz746.0712.

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Abstract Background Aortic stenosis (AS) is the most common acquired valvular heart disease. Calcification of the aortic valve (AV) cusps is the main pathogenetic mechanism of AS formation, however triggering and progression mechanisms of it are not fully understood. Aortic valve interstitial cells (AVIC) are one of the main cell populations responsible for the AV structure and homeostasis. The aim of the study was to characterize the ability of AVIC to osteogenic differentiation using the model of the primary culture of AVIC of patients with aortic stenosis and assess the expression of genes

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Ielasi, A., E. Moscarella, A. Mangieri, et al. "Procedural and clinical outcomes of type 0 versus type 1 bicuspid aortic valve stenosis treated with transcatheter valve replacement: insights from the BEAT international collaborative registry." European Heart Journal 41, Supplement_2 (2020). http://dx.doi.org/10.1093/ehjci/ehaa946.2626.

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Abstract Background Transcatheter aortic valve replacement (TAVR) is an established therapy for symptomatic severe aortic stenosis. Bicuspid aortic valves (BAV) were generally excluded from randomized trials due to anatomic features that may challenge TAVR (valve morphology, annulus geometry and size and severe calcifications). Nevertheless real-world registries have shown that a consistent number of BAV has been treated with TAVR. Whether BAV phenotype may affect acute or long-term outcomes following TAVR still remains unclear. Purpose Evaluate the impact of BAV phenotype on procedural and cl

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Susla, Oleksandr, Zoriana Litovkina, Ihor Mysula, and Anatoliy Gozhenko. "MO741TUMOR NECROSIS FACTOR ALPHA AND MAGNESIUM ARE LINKED TO CARDIAC VALVE CALCIFICATION IN DIABETIC HEMODIALYSIS PATIENTS." Nephrology Dialysis Transplantation 36, Supplement_1 (2021). http://dx.doi.org/10.1093/ndt/gfab097.0021.

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Abstract Background and Aims The processes of cardiac valve calcification (CVC) in diabetic hemodialysis (HD) patients are not fully understood. In this context, it is reasonable to complex and comprehensively research the activity of chronic inflammation and magnesium (Mg) imbalance as cardiovascular risk factors in end-stage renal disease (ESRD). The main purpose of the current study was to determine the relationship of tumor necrosis factor alpha (TNF-α) and Mg levels with the presence and severity of CVC in diabetic patients with ESRD. Method We enrolled 136 patients undergoing HD (male/fe

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Bonniface, Leesa, Lelia Green, and Maurice Swanson. "Affect and an Effective Online Therapeutic Community." M/C Journal 8, no. 6 (2005). http://dx.doi.org/10.5204/mcj.2448.

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   Affect theory is generally associated with the lifetime’s work of Silvan S. Tomkins, whose four volume work, Affect, Imagery, Consciousness, was published between 1962-92. The volumes argue that humans are subject to a range of innate affects: two positive (interest/excitement; enjoyment/joy), one neutral (surprise/startle) and six negative (distress/anguish; fear/terror; anger/rage; shame/humiliation; dissmell [reaction to a bad smell]; disgust).   In a crude “advanced search” using Google, affect is related to emotion in 3,620,000 Web references; to intellect

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