Download or read book The Curing Process as it Affects the Physical Properties of Acrylic Resins written by Warren O. Westover and published by . This book was released on 1943 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the effect of curing techniques on colour property of acrylic resins written by Amer Taqa and published by GRIN Verlag. This book was released on 2013-02-04 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forschungsarbeit aus dem Jahr 2004 im Fachbereich Medizin - Zahnmedizin, University of Mosul (Dental college), Sprache: Deutsch, Abstract: This study was carried out to evaluate the colour property of two types of acrylic resin materials cured by microwave technique in comparison with that cured by conventional water bath technique. Two types of heat cured acrylic resin materials were selected: Quayle–Dental and Major–base types. Seventy–two samples (30×20×1.5 mm) were prepared and divided into four experimental groups: Quayle–Dental and Major–base groups were cured by microwave technique and the others Quayle–Dental and Major–base groups were cured by water–bath technique. The number of samples for each group was 18. The colour property for the samples was evaluated using computerized ultra-violet–visible spectrophotometer with acc-uracy up to 0.001 nm. The absorbed light was measured which is also termed the optical density. The results of this study showed that there were no significant differences in optical density for acrylic resin samples cured by microwave and water–bath techniques, and the acrylic resin with smaller particle size (Quayle–Dental) showed higher optical density (colour property) than that of larger particle size (Major–base). Key Words: Optical density, colour prop-erty, microwave technique.
Download or read book EFFECT OF DIFFERENT CURING METHODS ON THE PHYSICAL PROPERTIES OF REPAIRED ACRYLIC RESIN written by MOHAMED MOSTAFA AHMED GAD and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Solvents Volume 2 written by George Wypych and published by Elsevier. This book was released on 2024-02-11 with total page 819 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 4th edition of Handbook of Solvents, Volume 2, contains the most comprehensive information ever published on solvents as well as an extensive analysis of the principles of solvent selection and use. The book begins with a discussion of solvents used in over 30 industries which are the main consumers of solvents. The analysis is conducted based on the available data and contains information on the types (and frequently amounts) of solvents used and potential problems and solutions. Picking up where Handbook of Solvents, Volume 1 leaves off, Handbook of Solvents Volume 2 provides information on the methods of analysis of solvents and materials containing solvents, with 2 sections containing standard and special methods of solvent analysis, followed by a discussion of residual solvents left in the final products. The environmental impact of solvents, such as their fate and movement in the water, soil, and air, fate-based management of solvent-containing wastes, and ecotoxicological effects are discussed as are solvents' impact on tropospheric air pollution. The next 2 chapters are devoted to the toxicology of solvents and regulations aiming to keep solvent toxicity under control. The analysis of the concentration of solvents in more than 15 industries, specific issues related to the paint industry, and characteristics of the environment in automotive collision repair shops are followed by a thorough discussion of regulations in the USA and Europe. Following chapters show examples of solvent substitution by safer materials, with an emphasis on supercritical solvents, ionic liquids, deep eutectic solvents, and agriculture-based products, such as ethyl lactate. Discussion of solvent recycling, removal, and degradation includes absorptive solvent recovery, comparison of results of recovery and incineration, and application of solar photocatalytic oxidation. The book concludes with an evaluation of methods of natural attenuation of various solvents in soils and modern methods of cleaning contaminated soils. - Assists in solvent selection by providing key information and insight on environmental and safety issues - Provides essential best practice guidance for human health consideration - Discusses the latest advances and trends in solvent technology, including modern methods of cleaning contaminated soils, selection of gloves, suits, and respirators
Download or read book Physical Properties of Acrylic Melamine Resin Cured Films for High Solid Paints written by T. Nakamichi and published by . This book was released on 1986 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Addition Chlorohexiidine Gluconate Powder on the Properties of Heat Cured Acrylic Resin written by Amer Taqa and published by GRIN Verlag. This book was released on 2018-07-05 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific Essay from the year 2011 in the subject Medicine - Dentistry, , language: English, abstract: This study aims to evaluate the effect of the addition of chlorohexidine gluconate (CHX) (powder) on some physical, mechanical properties and antimicrobial effect. In this study two hundred and forty samples of heat cured acrylic resin (Major base-2) were prepared and divided into different groups. Control group (without the addition of CHX) and experimental groups (with the addition of CHX (powder) at (1%, 2%, 3%)) to evaluate transverse strength, tensile strength, surface hardness, dimensional accuracy, deflection, residual monomer in addition to antimicrobial effect for heat cured acrylic resin before and after the addition of CHX (powder). Results showed a statistically significant difference at (p0.05) between control and experimental groups. The addition of CHX (powder) into heat cured acrylic resin increases its flexibility in addition to it's antimicrobial effect. Group of 1% CHX has the highest value of transverse strength, tensile strength, surface hardness and dimensional accuracy after control group. In addition to its antimicrobial effect, CHX increases the flexibility of heat cured acrylic resin. As the concentration of added CHX increased, the flexibility of heat cured acrylic resin specimens will be increased.
Download or read book Reactive Polymers Fundamentals and Applications written by Johannes Karl Fink and published by William Andrew. This book was released on 2013-04-11 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of reactive polymers enables manufacturers to make chemical changes at a late stage in the production process—these in turn cause changes in performance and properties. Material selection and control of the reaction are essential to acheive optimal performance. The second edition of Reactive Polymers Fundamentals and Applications introduces engineers and scientists to the range of reactive polymers available, explains the reactions that take place, and details applications and performance benefits. Basic principles and industrial processes are described for each class of reactive resin (thermoset), as well as additives, the curing process, and applications and uses. The initial chapters are devoted to individual resin types (e.g. epoxides, cyanacrylates, etc.); followed by more general chapters on topics such as reactive extrusion and dental applications. Material new to this edition includes the most recent developments, applications and commercial products for each chemical class of thermosets, as well as sections on fabrication methods, reactive biopolymers, recycling of reactive polymers, and case studies. Injection molding of reactive polymers, radiation curing, thermosetting elastomers, and reactive extrusion equipment are all covered as well. - Most comprehensive source of information about reactive polymers - Covers basics as well as most recent developments, including reactive biopolymers, recycling of reactive polymers, nanocomposites, and fluorosilicones - Indispensable guide for engineers and advanced students alike—providing extensive literature and patent review
Download or read book Dental Laboratory Technology written by United States. Department of the Air Force and published by . This book was released on 1975 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of the Effect of Resilient Lining Materials on the Physical Properties of Acrylic Resin Denture Base Material written by B. Goverdhan Hedge and published by . This book was released on 1972 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phillips Science of Dental Materials written by Kenneth J. Anusavice, DMD, PhD and published by Elsevier Health Sciences. This book was released on 2012-09-27 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn the most up-to-date information on materials used in the dental office and laboratory today. Emphasizing practical, clinical use, as well as the physical, chemical, and biological properties of materials, this leading reference helps you stay current in this very important area of dentistry. This new full-color edition also features an extensive collection of new clinical photographs to better illustrate the topics and concepts discussed in each chapter. Organization of chapters and content into four parts (General Classes and Properties of Dental Materials; Auxiliary Dental Materials; Direct Restorative Materials; and Indirect Restorative Materials) presents the material in a logical and effective way for better comprehension and readability. Balance between materials science and manipulation bridges the gap of knowledge between dentists and lab technicians. Major emphasis on biocompatibility serves as a useful guide for clinicians and educators on material safety. Distinguished contributor pool lends credibility and experience to each topic discussed. Critical thinking questions appearing in boxes throughout each chapter stimulate thinking and encourage classroom discussion of key concepts and principles. Key terms presented at the beginning of each chapter helps familiarize readers with key terms so you may better comprehend text material. NEW! Full color illustrations and line art throughout the book make text material more clear and vivid. NEW! Chapter on Emerging Technologies keeps you up to date on the latest materials in use. NEW! Larger trim size allows the text to have fewer pages and makes the content easier to read.
Download or read book QRS for BDS II Year E Book written by Jyotsna Rao and published by Elsevier Health Sciences. This book was released on 2016-08-19 with total page 703 pages. Available in PDF, EPUB and Kindle. Book excerpt: - Simple, well-illustrated and lucid in content and style - Systematically arranged topic wise previous years question papers - Questions solved in a lucid way as per marks allotment - Multiple Choice Questions with answers - Well-labelled illustrations and flowcharts - Collection of last 20 years' solved questions asked in different university examinations across India Online Resources - Complete access to full e-book - Multiple Choice Questions
Download or read book Engineered Materials Handbook Desk Edition written by ASM International. Handbook Committee and published by ASM International. This book was released on 1995-11-01 with total page 1313 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference on the properties, selection, processing, and applications of the most widely used nonmetallic engineering materials. Section 1, General Information and Data, contains information applicable both to polymers and to ceramics and glasses. It includes an illustrated glossary, a collection of engineering tables and data, and a guide to materials selection. Sections 2 through 7 focus on polymeric materials--plastics, elastomers, polymer-matrix composites, adhesives, and sealants--with the information largely updated and expanded from the first three volumes of the Engineered Materials Handbook. Ceramics and glasses are covered in Sections 8 through 12, also with updated and expanded information. Annotation copyright by Book News, Inc., Portland, OR
Download or read book Handbook of Thermoset Plastics written by Hanna Dodiuk and published by William Andrew. This book was released on 2021-10-25 with total page 1118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Thermoset Plastics, Fourth Edition provides complete coverage of the chemical processes, manufacturing techniques and design properties of each polymer, along with its applications. This new edition has been expanded to include the latest developments in the field, with new chapters on radiation curing, biological adhesives, vitrimers, and 3D printing. This detailed handbook considers the practical implications of using thermoset plastics and the relationships between processing, properties and applications, as well as analyzing the strengths and weakness of different methods and applications.The aim of the book is to help the reader to make the right decision and take the correct action on the basis of informed analysis – avoiding the pitfalls the authors' experience has uncovered. In industry, the book supports engineers, scientists, manufacturers and R&D professionals working with plastics. The information included will also be of interest to researchers and advanced students in plastics engineering, polymer chemistry, adhesives and coatings. - Offers a systematic approach, guiding the reader through chemistry, processing methods, properties and applications of thermosetting polymers - Includes thorough updates that discuss current practice and the new developments on biopolymers, nanotechnology, 3D printing, radiation curing and biological adhesives - Uses case studies to demonstrate how particular properties make different polymers suitable for different applications - Covers end-use and safety considerations
Download or read book Electron Spin Resonance Spectroscopy in Medicine written by Ashutosh Kumar Shukla and published by Springer. This book was released on 2018-10-17 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines various applications of electron spin resonance spectroscopy (ESR) in medicine, covering topics such as interactions between blood and nanoparticles, physical intricacy of HbNO complexes, parasitic diseases, oxidative stress measurement, polymerization of resinous materials used in dentistry, tooth dosimetry and dermatological applications. Instead of providing mathematical details, it focuses on the applications and data interpretation of ESR as an emerging tool. This book is intended for students and researchers interested in the field of ESR applications in translational research and medicine.
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1992 with total page 1444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phillips Science of Dental Materials E Book written by Chiayi Shen and published by Elsevier Health Sciences. This book was released on 2021-05-13 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: **Selected for Doody's Core Titles® 2024 with "Essential Purchase" designation in Dentistry** Keep current with the evolving technology of dental materials! Phillips' Science of Dental Materials, 13th Edition provides comprehensive, up-to-date information on the materials used in cosmetic and restorative procedures in dentistry. It introduces the physical and chemical properties that are related to selection and use of dental biomaterials, including their composition, mechanical properties, manipulative variables, and the performance of dental restorations and prostheses. This edition adds three new chapters and hundreds of new full-color photographs. Written by dental scientists Chiayi Shen and H. Ralph Rawls along with prosthodontist Josephine Esquivel-Upshaw, this leading text/reference helps dentists select the right materials for oral procedures and helps dental labs ensure high-quality restorations. - 500 full-color photos and illustrations show concepts, dental instruments, and restorations. - Key terms are defined at the beginning of each chapter, covering terminology related to dental biomaterials and science. - Critical thinking questions stimulate thinking and emphasize important concepts and principles. - Logical, five-part organization of chapters makes the content easier to read and understand, with units on General Classes and Properties of Dental Materials, Direct Restorative Materials, Indirect Restorative Materials, Fabrication of Prostheses, and Assessing Dental Restorations. - Balance between materials science and manipulation bridges the gap of knowledge between dentists and lab technicians. - Major emphasis on biocompatibility serves as a useful guide to the principles and clinical implications of restorative materials safety. - Diverse and respected pool of contributors lends credibility and experience to each dental science topic. - NEW! Three new chapters are added: Digital Technology in Dentistry, In Vitro Research of Dental Materials, and Clinical Research of Restorations.
Download or read book Van Nostrand s Scientific Encyclopedia written by Douglas M. Considine and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 3529 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advancements in science and engineering have occurred at a surprisingly rapid pace since the release of the seventh edition of this encyclopedia. Large portions of the reference have required comprehensive rewriting and new illustrations. Scores of new topics have been included to create this thoroughly updated eighth edition. The appearance of this new edition in 1994 marks the continuation of a tradition commenced well over a half-century ago in 1938 Van Nostrand's Scientific Encyclopedia, First Edition, was published and welcomed by educators worldwide at a time when what we know today as modern science was just getting underway. The early encyclopedia was well received by students and educators alike during a critical time span when science became established as a major factor in shaping the progress and economy of individual nations and at the global level. A vital need existed for a permanent science reference that could be updated periodically and made conveniently available to audiences that numbered in the millions. The pioneering VNSE met these criteria and continues today as a reliable technical information source for making private and public decisions that present a backdrop of technical alternatives.
