Étude comparative des propriétés et des indications du minéral trioxide aggregate et de la biodentineTM PDF Download

Author: Simon Legay
Publisher:
ISBN:
Category :
Languages : fr
Pages : 174

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Book Description
Apparus il y a une douzaine d'années, sous forme de Mineral Trioxide Aggregate (MTA), les ciments à base de silicate de calcium hydraté se sont fait une place au sein de notre arsenal thérapeutique, aux côtés de l'hydroxyde de calcium (référence actuelle), en tant que ciments de réparation endodontique, pour les thérapeutiques de coiffage pulpaire direct, le comblement des perforations et résorptions endodontiques, ainsi que pour l'apexification. C'est en 2010, qu'un nouveau matériau de composition similaire, la BiodentineTM, fait son arrivée sur le marché. Son fabricant le propose pour les mêmes indications que l'hydroxyde de calcium et le MTA, auxquelles s'ajoute la possibilité de l'utiliser comme substitut dentinaire définitif ou amélo-dentinaire transitoire. Ce travail consiste en une revue et une analyse critique de la littérature disponible au sujet du MTA et de la BiodentineTM, afin de comparer leurs propriétés et indications, dans le but d'orienter le choix du praticien, qui devra également prendre en compte tous les aspects cliniques dans sa stratégie de prise en charge bucco-dentaire pluridisciplinaire.

Author: Ahmed M. Abdel-Azeem
Publisher: Springer Nature
ISBN: 3030316122
Category : Science
Languages : en
Pages : 453

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Book Description
Chaetomium genus was established by Gustav Kunze in 1817. According to Index Fungorum Partnership, there are 273 Chaetomium species accepted till now. Members of the genus Chaetomium are capable of colonizing various substrates and are well-known for their ability to degrade cellulose and to produce a variety of bioactive metabolites. More than 200 compounds have been reported from this genus. A huge number of new and bioactive secondary metabolites associated with unique and diverse structural types, such as chaetoglobosins, epipolythiodioxopiperazines, azaphilones, depsidones, xanthones, anthraquinones, chromones, and steroids, have been isolated and identified. Many of the compounds have been reported to possess significant biological activities, such as antitumor, antimalarial, cytotoxic, enzyme inhibitory, antimicrobial, phytotoxic, antirheumatoid and other activities. Chaetomium taxa are frequently reported to be cellulase and ligninase producers with the ability to degrade cellulosic and woody materials. This is the first, comprehensive volume covering Chaetomium genus in detail. It includes the latest research, methods, and applications, and was written by scholars working directly in the field. The book also contains informative illustrations and is fully referenced for further reading.

Author: Pascal Magne
Publisher:
ISBN: 9780867155723
Category :
Languages : en
Pages :

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Book Description
"Applies the biomimetic principle to bonded restorations using composite resins and ceramics, describing the broad spectrum of indications and detailing the treatment planning, diagnostic approach, step-by-step treatment, and maintenance for each"--

Author: Robert Wassell
Publisher: Springer
ISBN: 3319790935
Category : Medical
Languages : en
Pages : 459

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Book Description
This book is a state of the art clinical guide to contemporary materials and techniques for the restoration of individual teeth and implants. It fully reflects the important developments in the field over the past 15 years, including in particular the shift away from wholesale use of crowns towards adhesive dentistry and less invasive extra-coronal restorations. The book opens by considering the principles and evidence base relating to the longevity of restorations of teeth and implants. Importantly, it explains how to ensure “a healthy start” and manage future risks. Material choice and aesthetic issues are then discussed, before all aspects of the planning and provision of extra-coronal restorations are examined in depth. The coverage also includes the adaptation of crowns to existing partial dentures. In line with modern dental education, each chapter begins with clinically relevant learning objectives, and helpful clinical tips are highlighted. The book will be of value for senior dental undergraduates, postgraduates, and practicing dentists and its scientific content will be of interest to dental academics.

Author: Kang N. Lee
Publisher: MDPI
ISBN: 3039365177
Category : Science
Languages : en
Pages : 168

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Book Description
The global increase in air travel will require commercial vehicles to be more efficient than ever before. Advanced engine hot section materials are a key technology required to keep fuel consumption and emission to a minimum in next-generation gas turbines. Ceramic matrix composites (CMCs) are the most promising material to revolutionize gas turbine hot section materials technology because of their excellent high‐temperature properties. Rapid surface recession due to volatilization by water vapor is the Achilles heel of CMCs. Environmental barrier coatings (EBCs) is an enabling technology for CMCs, since it protects CMCs from water vapor. The first CMC component entered into service in 2016 in a commercial engine, and more CMC components are scheduled to follow within the next few years. One of the most difficult challenges to CMC components is EBC durability, because failure of EBC leads to a rapid reduction in CMC component life. Key contributors to EBC failure include recession, oxidation, degradation by calcium‐aluminum‐magnesium silicates (CMAS) deposits, thermal and thermo‐mechanical strains, particle erosion, and foreign object damage (FOD). Novel EBC chemistries, creative EBC designs, and robust processes are required to meet EBC durability challenges. Engine-relevant testing, characterization, and lifing methods need to be developed to improve EBC reliability. The aim of this Special Issue is to present recent advances in EBC technology to address these issues. In particular, topics of interest include but are not limited to the following: • Novel EBC chemistries and designs; • Processing including plasma spray, suspension plasma spray, solution precursor plasma spray, slurry process, PS-PVD, EB-PVD, and CVD; • Testing, characterization, and modeling; • Lifing.

Author: Vijaykumar V. Jadhav
Publisher: Springer Nature
ISBN: 3030167186
Category : Technology & Engineering
Languages : en
Pages : 99

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Book Description
This book provides a much-needed, up-to-date overview of unary, binary and ternary bismuth-ferrite-based systems, with a focus on their properties, synthesis methods and applications as electrochemical supercapacitors. It introduces readers to the basic structure and properties of ferrites in general, focusing on the selection criteria for ferrite materials for electrochemical energy storage applications. Along with coverage of ferrite synthesis methods, it discusses bismuth-ferrite structures in unary, binary and mixed ferrite nanostructure systems, as well as future perspectives and limitations for using ferrites as electrochemical supercapacitors. A valuable resource for beginners and advanced researchers working on similar topics, this book enables them to understand the core materials and electrochemical concepts behind bismuth-ferrite-based systems as energy storage materials.

Author: R V Curtis
Publisher: Elsevier
ISBN: 1845694244
Category : Technology & Engineering
Languages : en
Pages : 529

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Book Description
Dental Biomaterials: Imaging, Testing and Modelling reviews the materials used in this important area, their performance and how such performance can be measured and optimised. Chapters review optical and electron microscopy imaging techniques for dental biomaterial interfaces. Specific materials such as dental cements, fibre-reinforced composites, metals and alloys are discussed. There is an analysis of stresses, fracture, wear and ageing in dental biomaterials as well as an evaluation of the performance of dental adhesives and resin-dentin bonds. Chapters also review ways of assessing the performance of dental handpieces, crowns, implants and prosthesies. The book also reviews the use of computer models in such areas as bond strength and shape optimisation of dental restorations.With its distinguished editors and team of experienced contributors DDental Biomaterials: Imaging, Testing and Modelling researchers, materials scientists, engineers and dental practitioners with an essential guide to the use and performance of dental biomaterials. - An essential guide to the use and performance of dental biomaterials - Reviews optical and electron microscopy imaging techniques for dental biomaterial interfaces - Analyses stresses, fracture, wear and ageing in dental biomaterials and evaluates the performance of dental adhesives and resin-dentin bonds

Author: Pascal Magne
Publisher: Quintessence Publishing (IL)
ISBN:
Category : Medical
Languages : en
Pages : 414

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Book Description
Guided by the philosophy of biomimetics, the authors combine sound biologic principles with an overriding respect for the natural intact tooth to achieve esthetic satisfaction in the restoration of the anterior dentition. A checklist of fundamental esthetic criteria is presented, and treatment planning, diagnostics, tooth preparation, laboratory procedures, adhesive luting procedures, and maintenance protocols are carefully detailed.

Author: Antonio Nanci
Publisher: Elsevier Health Sciences
ISBN: 032304557X
Category : Medical
Languages : en
Pages : 432

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Book Description
Accompanying CD-ROM contains ... "150 color images with legends, 472 book figures with legends, 438 multiple choice test questions, and 119 interactive drag-and-drop exercises." -- from CD-ROM Welcome screen.

Author: Samuel Wesley Thompson
Publisher: Charles C. Thomas Publisher
ISBN:
Category : Medical
Languages : en
Pages : 1168

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Book Description