An update on indirect prosthodontic materials and their manufacturing techniques

Dental Update ◽  
2021 ◽  
Vol 48 (8) ◽  
pp. 699-705
Author(s):  
David Gray ◽  
Olivia Barraclough ◽  
Zaid Ali ◽  
Brian Nattress
Keyword(s):  
Evidence Based ◽  
New Materials ◽  
Advantages And Disadvantages ◽  
Clinical Evaluations ◽  
General Dental Practitioner ◽  
Alternative Materials ◽  
New Material ◽  
Manufacturing Techniques ◽  
Dental Environment ◽  
Cobalt Chrome

Innovations in the fabrication of removable partial dentures depend not only on the development of new materials, but also on the availability of manufacturing techniques that can be applied to a dental environment. Many of these new materials have limited clinical evaluations, hence it can be difficult for the general dental practitioner to confidently determine which materials to use. The introduction of any new material into clinical practice often requires practitioners to go through a learning curve to make the most of the material and employ it most appropriately. This article provides an update on the materials available for removable partial dentures and discusses the advantages and disadvantages to enable the GDP to make an evidence-based decision. CPD/Clinical Relevance: It is important that clinicians are aware of the alternative materials to conventional acrylic and cobalt chrome.

Evaluating promising applications of a new nanomaterial produced by accumulative roll bonding process: A preliminary multiple criteria decision-making approach

2016 ◽  
Vol 233 (6) ◽  
pp. 1023-1032 ◽  
Author(s):  
Jalil Vaziri ◽  
Ali Jahan ◽  
Ehsan Borhani ◽  
Mohammad Yousefieh ◽  
Kevin L Edwards
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Accumulative Roll Bonding ◽  
Metal Matrix ◽  
Bonding Process ◽  
Accumulative Roll Bonding Process ◽  
New Materials ◽  
Roll Bonding ◽  
Advantages And Disadvantages ◽  
New Material

Although many new materials are developed in laboratories, most of them do not get commercialized. The ranking of applications gives material engineers a better understanding of the advantages and disadvantages of any new or improved material under development. This is possible through simultaneously considering different technical, economic, and environmental criteria. It also helps to guide future research on developing new materials and identify the requirements that any new material must fulfill for the most fitting applications. The appropriateness of the proposed approach for evaluating promising applications of a new material is demonstrated using a case study in nanostructured Al/Al2O3 metal matrix composite produced via the accumulative roll bonding process. Al/Al2O3 metal matrix composite provides superior mechanical and physical properties and accumulative roll bonding is a severe plastic deformation process that can be applied to the continuous production of bulky sheet materials. The material is in growing use and becoming indispensable in several key industrial sectors such as aerospace, automobile, marine, and defense, and the enhanced properties created by accumulative roll bonding will only increase its potential. The innovative approach described in this paper will be of interest to academic researchers and practitioners involved in new materials, processing, and product development.

Materials technology: Innovations and progress

Impact ◽  
2020 ◽  
Vol 2020 (2) ◽  
pp. 52-53
Author(s):  
Lucy Sharp
Keyword(s):  
Material Properties ◽  
New Materials ◽  
Medical Problems ◽  
Technology Innovations ◽  
Societal Challenges ◽  
New Material ◽  
Innovative Materials ◽  
The Creation ◽  
Novel Applications

Materials technology is a constantly evolving discipline, with new materials leading to novel applications. For example, new material properties arise from combining different materials into composites. Researching materials can help solve societal challenges, with the creation of innovative materials resulting in breakthroughs in overcoming hurdles facing humankind, including energy challenges and medical problems. Innovative materials breathe new life into industries and spur on scientific and technological discovery.

scholarly journals How Can Scientific Literature Support Decision-Making in the Renovation of Historic Buildings? An Evidence-Based Approach for Improving the Performance of Walls

2021 ◽  
Vol 13 (4) ◽  
pp. 2266
Author(s):  
Valentina Marincioni ◽  
Virginia Gori ◽  
Ernst Jan de Place Hansen ◽  
Daniel Herrera-Avellanosa ◽  
Sara Mauri ◽  
...  
Keyword(s):  
Energy Performance ◽  
Decision Makers ◽  
Cultural Value ◽  
Correct Selection ◽  
Evidence Based ◽  
Historic Buildings ◽  
Indoor Environmental Quality ◽  
Building Stock ◽  
Advantages And Disadvantages ◽  
Assessment Design

Buildings of heritage significance due to their historical, architectural, or cultural value, here called historic buildings, constitute a large proportion of the building stock in many countries around the world. Improving the performance of such buildings is necessary to lower the carbon emissions of the stock, which generates around 40% of the overall emissions worldwide. In historic buildings, it is estimated that heat loss through external walls contributes significantly to the overall energy consumption, and is associated with poor thermal comfort and indoor air quality. Measures to improve the performance of walls of historic buildings require a balance between energy performance, indoor environmental quality, heritage significance, and technical compatibility. Appropriate wall measures are available, but the correct selection and implementation require an integrated process throughout assessment (planning), design, construction, and use. Despite the available knowledge, decision-makers often have limited access to robust information on tested retrofit measures, hindering the implementation of deep renovation. This paper provides an evidence-based approach on the steps required during assessment, design, and construction, and after retrofitting through a literature review. Moreover, it provides a review of possible measures for wall retrofit within the deep renovation of historic buildings, including their advantages and disadvantages and the required considerations based on context.

scholarly journals Evidence-Based Management of the Anzali Wetland System (Northern Iran) Based on Innovative Monitoring and Modeling Methods

2021 ◽  
Vol 13 (10) ◽  
pp. 5503
Author(s):  
Roghayeh Sadeghi Pasvisheh ◽  
Marie Anne Eurie Forio ◽  
Long Tuan Ho ◽  
Peter L. M. Goethals
Keyword(s):  
Sustainable Development ◽  
Environmental Modeling ◽  
Evidence Based ◽  
Anzali Wetland ◽  
Northern Iran ◽  
The Sustainable Development ◽  
Advantages And Disadvantages ◽  
Modeling Techniques ◽  
State Changes ◽  
Wetland System

As an “international aquatic ecosystem” in Northern Iran, the Anzali wetland is a nursery for fish and a breeding and wintering area for a wide variety of waterfowl. The wetland is threatened by human activities (deforestation, hunting, tourism, and urbanization), leading to habitat destruction, eutrophication, and sediment accumulation. To stop the degradation and to set up effective protection and restoration in line with the Sustainable Development Goals, scientific insights must be integrated into a practical framework for evidence-based support for policymakers and managers of the Anzali wetland. In this study, the Drivers–Pressure–State–Impact–Response (DPSIR) framework is used as a suitable tool to link human pressures and state changes to derive an overview of the potential impacts. Population growth, intensive agriculture, increased urbanization, and industrialization are the major driving forces that have led to a complex cascade of state changes. For instance, during recent years, water quality deterioration, habitat degradation, and the overgrowth of invasive species in the Anzali wetland watershed have caused negative socio-economic and human health impacts. Integrated and innovative monitoring programs combined with socio-environmental modeling techniques are needed for a more evidence-based management approach as part of a multiresponse strategy for the sustainable development of the wetland system. In this respect, there is a critical gap in useful information concerning biological composition and innovative monitoring methods. Moreover, the relation of biota with human activity and environmental conditions needs to be better quantified. Therefore, ecological modeling techniques based on machine learning and statistics were reviewed for their advantages and disadvantages. The overview of approaches presented here can serve as the basis for scientists, practitioners, and decision-makers to develop and implement evidence-based management programs for the Anzali wetland.

scholarly journals Contrasting Public and Scientific Assessments of Fracking

2021 ◽  
Vol 13 (12) ◽  
pp. 6650
Author(s):  
Yu Zhang ◽  
John A. Rupp ◽  
John D. Graham
Keyword(s):  
New York ◽  
Public Perceptions ◽  
Evidence Based ◽  
Opinion Survey ◽  
Think Tank ◽  
Advantages And Disadvantages ◽  
Local Media

This paper examines whether public perceptions of the claimed advantages and disadvantages of fracking are consistent with an evidence-based assessment of the claimed advantages and disadvantages. Public assessments are obtained from an internet-based opinion survey in 2014 in six states: California, Illinois, New York, Ohio, Pennsylvania, and Texas. The survey presented eleven advantages and eleven disadvantages of fracking derived from local media stories, from advocacy claims made by pro- or anti-fracking groups, and from think tank pieces. Then the respondents were asked to indicate their feelings about how important each claimed advantage and disadvantage was to their support of/opposition to fracking. Scientific assessments regarding the same claims are compiled from available peer-reviewed literature and evidence-based reviews. We classify each claim as either (a) supported by the weight of the available evidence, (b) not supported by the weight of the available evidence, or (c) there is inadequate evidence to assess it. We find less consistency with respect to the disadvantages than advantages. Respondents perceive four disadvantages out of eleven as extremely important while there is inadequate evidence to assess them or the available evidence does not support them. Our comparison has interesting implications for understanding the controversy about fracking.

Material Properties and Design Aspects of Folding Bicycle Frame

2011 ◽  
Vol 264-265 ◽  
pp. 777-782 ◽  
Author(s):  
M.A. Maleque ◽  
M.S. Hossain ◽  
S. Dyuti
Keyword(s):  
Material Properties ◽  
Raw Material ◽  
New Materials ◽  
Materials Properties ◽  
Advantages And Disadvantages ◽  
Bicycle Frame ◽  
Successful Design ◽  
Future Direction ◽  
The Relationship ◽  
Comprehensive Study

successful design of folding bicycle should take into account the function, material properties, and fabrication process. There are some other factors that should be considered in anticipating the behavior of materials for folding bicycle. In order to understand the relationship between material properties and design of a folding bicycle and also for the future direction in new materials with new design, a comprehensive study on the design under different conditions are essential. Therefore, a systematic study on the relationship between material properties and design for folding bicycle has been performed. The advantages and disadvantages matrix between conventional bicycle and folding bicycle is presented for better understanding of the materials properties and design. It was found that the materials properties of the folding bicycle frame such as fatigue and tensile strength are the important properties for the better performance of the frame. The relationship between materials properties and design is not straight forward because the behavior of the material in the finished product could be different from that of the raw material. The swing hinge technique could be a better technique in the design for the folding bicycle frame.

Premature birth (Clinical lecture)

2018 ◽  
pp. 9-12
Author(s):  
I.B. Ventskovskaya ◽  
◽  
V.V. Bila ◽  
O.S. Countryside ◽  
◽  
...  
Keyword(s):  
Magnesium Sulfate ◽  
Key Words ◽  
Gestational Age ◽  
Evidence Based Medicine ◽  
Premature Birth ◽  
Preterm Labor ◽  
Evidence Based ◽  
Advantages And Disadvantages ◽  
Based Medicine ◽  
Tocolytic Agents

The article presents modern views on the pathogenesis of preterm labor, their relevance and classification. From the perspective of evidence-based medicine methods of prevention are considered. A comparison of the main tocolytic agents, their advantages and disadvantages is presented. Key words: premature birth, perinatal and infantile mortality, tocolysis, magnesium sulfate, gestational age.

scholarly journals New Developments in the History of East Uighur Manichaeism

Open Theology ◽  
2015 ◽  
Vol 1 (1) ◽  
Author(s):  
Takao Moriyasu
Keyword(s):  
French Translation ◽  
New Materials ◽  
New Developments ◽  
History Of ◽  
New Material ◽  
Middle Persian

AbstractMost of the materials on the history of Manichaeism during the time of the East Uighur empire are Chinese sources (Chinese works and the Karabalgasun inscription) which are well known on account of its French translation with detailed notes by Chavannes and Pelliot (1911-1913). Thereafter several new materials in Middle Iranian or in Old Uighur have been published as follows: T II D 135, a colophon in Middle Persian; M 1, a colophon of the Mahrnāmag (Hymn-Book); U 1 (= T II K Bündel Nr. D 173), a fragment of an Uighur historical book about Old Turkic peoples; U 72 and U 73, an Uighur Account of Mouyu Qaγan’s Conversion to Manichaeism; U 168 II (= T II D 173 a2), the colophon of a prayer appended to a Uighur Manichaean scripture in 795. Also just recently Peter Zieme has discovered new material: 81TB10: 06-3a. I have tried to reconstruct the history of Manichaeism during the time of the East Uighur empire synthesizing all materials mentioned above.

Hybrid Magnetorheological Elastomer, the Future of Gait Detection

2018 ◽  
Vol 775 ◽  
pp. 177-183 ◽  
Author(s):  
Dimas Adiputra ◽  
Muhammad Kashfi Shabdin ◽  
Siti Aishah Abdul Aziz ◽  
Irfan Bahiuddin ◽  
Mohd Azizi Abdul Rahman ◽  
...  
Keyword(s):  
Force Plate ◽  
Magnetorheological Elastomer ◽  
Ankle Foot Orthosis ◽  
Rotary Encoder ◽  
Advantages And Disadvantages ◽  
The Future ◽  
New Material ◽  
Foot Orthosis

This article aims to present a brief review on sensors used for gait detection in Ankle Foot Orthosis (AFO) application. Both the advantages and disadvantages of sensors such as EMG sensor, rotary encoder, foot switches, and force plate are highlighted in this article. Authors also addressed the four characteristics of sensors for gait detection; uniformity, installation, flexibility, and multi-measurement. In addition, the sensors were then compared based on the characteristics. The foot switch was identified as the most compatible sensor for gait detection. However, the sensor was also discovered to contain problems in its durability and uneven grounding. Consequently, the authors propose an introduction to a new material, hybrid Magnetorheological Elastomer (MRE). Coincidentally, the mentioned material possesses attributes of thin dimensions with adjustable stiffness. The thin dimension allows the hybrid MRE to be placed under the AFO sole. Furthermore, with an accurate degree of stiffness, the hybrid MRE allows for adjustment leading to a higher level of durability of the sensors which remains fine even if stomped on the user. In conclusion, the authors propose a further study on hybrid MRE AFO for the next study.

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