Download or read book Infrared Spectroscopic Analysis of Restorative Composite Materials Surfaces and Their Saline Extracts written by Reem Ajaj and published by . This book was released on 2009 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: BoldIntroduction:bold Tooth-colored resin fillings have become increasingly popular as restorative materials. This increase makes it important to differentiate among the materials for forensic and biological purposes. For the forensic aspect, prior studies were done concerning the inorganic portion of the dental restorative composite resins' composition and succeeded to characterize the composite resin brands into similar and different groups to aid in their discrimination. No prior studies were done to test the ability to differentiate the organic part of dental composite resins.^Many studies were also done to differentiate the cytotoxic effects of composite resins to other restorative dental materials but no studies were done to find out if different composite resin brands would have different cytotoxicity to cells in the proximal vicinity.boldMaterials and Methods:bold Fourteen commercially available composite resin brands selected from the list of materials used in the previous studies of the inorganic part were used in the study. MAIR-IR Spectroscopic analysis was used for surface characterization of the covalently bonded organic and inorganic parts of the composite resin samples. All of the methods were following the methods used in a previous pilot study done on another 3 different dental restorative materials. The composite resin samples were studied As-Is and after 2 weeks saline incubation. IR Spectroscopy was also done on the saline extracts to find out if different composite resin materials would have different leaching abilities.^The saline extracts were also used for the viability testing of HGF cell cultures in 50 and 100℗æl doses added to the cell cultures in separate settings. One way ANOVA analysis of variance was the test statistics used to analyze the results.boldResults:bold It was found that the composite resin brands have different spectra after saline soaking which might indicate that IR spectroscopy can be a useful tool for discrimination between composite resin restorations "after saline soaking" to serve the forensic aspect. It was also found that these composite resin brands possess different leaching abilities in regard to the amount and type of materials. They also have different cytotoxic effects which were found to be threshold dependent.boldConclusion:bold IR spectroscopy might be considered a useful tool for dental composite resins' covalently bonded organic and inorganic part characterization. These resins have different leaching abilities and cytotoxicity.^However, more oral simulating environmental testing methods, different surface characterization methods and more cell viability testing methods and assays must be considered for more specific results.
Download or read book Dental Composite Materials for Direct Restorations written by Vesna Miletic and published by Springer. This book was released on 2017-11-25 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers both basic scientific and clinically relevant aspects of dental composite materials with a view to meeting the needs of researchers and practitioners. Following an introduction on their development, the composition of contemporary composites is analyzed. A chapter on polymerization explains the setting reactions and light sources available for light-cured composites. The quality of monomer-to-polymer conversion is a key factor for material properties. Polymerization shrinkage along with the associated stress remains among the most challenging issues regarding composite restorations. A new classification of dental composites is proposed to offer more clinically relevant ways of differentiating between commercially available materials. A review of specific types of composites provides an insight into their key issues. The potential biological issues of dental composites are reviewed in chapters on elution of leachable substances and cariogenicity of resin monomers. Clinical sections focus on material placement, finishing procedures, and the esthetics and clinical longevity of composite restorations. Bonding to tooth tissues is addressed in a separate chapter, as is the efficiency of various composite repair methods. The final chapter discusses future perspectives on dental composite materials.
Download or read book Surface Science Techniques written by Gianangelo Bracco and published by Springer Science & Business Media. This book was released on 2013-01-11 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book describes the experimental techniques employed to study surfaces and interfaces. The emphasis is on the experimental method. Therefore all chapters start with an introduction of the scientific problem, the theory necessary to understand how the technique works and how to understand the results. Descriptions of real experimental setups, experimental results at different systems are given to show both the strength and the limits of the technique. In a final part the new developments and possible extensions of the techniques are presented. The included techniques provide microscopic as well as macroscopic information. They cover most of the techniques used in surface science.
Download or read book The Glossary of Prosthodontic Terms written by and published by . This book was released on 1994 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 7th International Conference on the Development of Biomedical Engineering in Vietnam BME7 written by Vo Van Toi and published by Springer. This book was released on 2019-06-05 with total page 673 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the proceedings of the 7th International Conference on the Development of Biomedical Engineering in Vietnam which was held from June 27-29, 2018 in Ho Chi Minh City. The volume reflects the progress of Biomedical Engineering and discusses problems and solutions. It aims to identify new challenges, and shaping future directions for research in biomedical engineering fields including medical instrumentation, bioinformatics, biomechanics, medical imaging, drug delivery therapy, regenerative medicine and entrepreneurship in medical devices.
Download or read book Dental Biomaterials written by Edward Sacher and published by World Scientific. This book was released on 2018-12-18 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contents of this book touch on the all major dental biomaterials: polymers, composites, ceramics and metals. The first part introduces the readers to the surface physicochemical and mechanical characterizations at the nanoscopic level, and the use of finite element analysis. The second part discusses dental adhesion, resin-based composites, polymerization contraction stress, impression materials and soft liners for total prosthesis. The third part deals with ceramics in restorative dentistry: zirconia and lithium disilicate, the fractography of dental ceramics, as well as bioglass for bone growth. The fourth part discusses the toxicity of mercury in dentistry, and the use of preventive materials for dental diseases. The concluding part identifies imminent techniques for dental biomaterials, such as additive manufacturing (3D printing), and bioprinting in dentistry.
Download or read book Tooth colored Restoratives written by Harry F. Albers and published by PMPH-USA. This book was released on 2002 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Written for dental students and seasoned practitioners alike, Tooth-Colored Restoratives: Principles and Techniques Ninth Edition is comprised of a primer on dental materials and a guide to creating highly esthetic, long-lasting direct restorations. Preparation designs and simplified techniques for creating more durable, more esthetic restorations are well supported by this abundantly illustrated book featuring 400 illustrations."--BOOK JACKET.
Download or read book Dental Materials Science written by Rama Krishna Alla and published by . This book was released on 2013-01-30 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mummy Portraits of Roman Egypt written by Marie Svoboda and published by Getty Publications. This book was released on 2020-08-25 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication presents fascinating new findings on ancient Romano-Egyptian funerary portraits preserved in international collections. Once interred with mummified remains, nearly a thousand funerary portraits from Roman Egypt survive today in museums around the world, bringing viewers face-to-face with people who lived two thousand years ago. Until recently, few of these paintings had undergone in-depth study to determine by whom they were made and how. An international collaboration known as APPEAR (Ancient Panel Paintings: Examination, Analysis, and Research) was launched in 2013 to promote the study of these objects and to gather scientific and historical findings into a shared database. The first phase of the project was marked with a two-day conference at the Getty Villa. Conservators, scientists, and curators presented new research on topics such as provenance and collecting, comparisons of works across institutions, and scientific studies of pigments, binders, and supports. The papers and posters from the conference are collected in this publication, which offers the most up-to-date information available about these fascinating remnants of the ancient world. The free online edition of this open-access publication is available at www.getty.edu/publications/mummyportraits/ and includes zoomable illustrations and graphs. Also available are free PDF, EPUB, and Kindle/MOBI downloads of the book.
Download or read book Aquaphotomics for Bio diagnostics in Dairy written by Roumiana Tsenkova and published by Springer Nature. This book was released on 2021-11-15 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the result of more than 20 years of experience in working with near-infrared spectroscopy for raw milk analysis. The totality of this work presents extensive possibilities for milk spectral measurements that can be carried out in dairy. Moving beyond the standard milk components such as fat, protein, or lactose, this book presents near-infrared spectroscopy as a method that can also be used in disease diagnostics. The measurements and experimental results presented here are all based on the utilization of usually neglected near-infrared regions—regions with strong absorbance of water. The author has found the water – light interaction discussed to be an immensely rich source of information, not only on milk composition but also on the physiological status of the animals involved. A special section of the book is dedicated to exploration of potential interfering factors that may influence the analysis and contribute to the robustness of the models. The research described in this book served as a basis for the development of the novel discipline aquaphotomics and is of interest to anyone working in this field.
Download or read book Accelerated Aging written by Robert L. Feller and published by Getty Publications. This book was released on 1995-03-02 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accelerated Aging: Photochemical and Thermal Aspects represents the culmination of more than 40 years of research by noted scientist Robert L. Feller. The book focuses on the long-term performance of materials such as wool, dyes, and organic compounds; their resistance to change when exposed to environmental factors such as oxygen, ozone, moisture, heat, and light; and their physical durability with handling and use over time. Processes of deterioration are discussed based on speeded-up laboratory studies designed to clarify the chemical reactions involved and their physical consequences.
Download or read book Introduction to Glass Science and Technology written by James E Shelby and published by Royal Society of Chemistry. This book was released on 2015-11-06 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a concise and inexpensive introduction for an undergraduate course in glass science and technology. The level of the book has deliberately been maintained at the introductory level to avoid confusion of the student by inclusion of more advanced material, and is unique in that its text is limited to the amount suitable for a one term course for students in materials science, ceramics or inorganic chemistry. The contents cover the fundamental topics of importance in glass science and technology, including glass formation, crystallization, phase separation and structure of glasses. Additional chapters discuss the most important properties of glasses, including discussion of physical, optical, electrical, chemical and mechanical properties. A final chapter provides an introduction to a number of methods used to form technical glasses, including glass sheet, bottles, insulation fibre, optical fibres and other common commercial products. In addition, the book contains discussion of the effects of phase separation and crystallization on the properties of glasses, which is neglected in other texts. Although intended primarily as a textbook, Introduction to Glass Science and Technology will also be invaluable to the engineer or scientist who desires more knowledge regarding the formation, properties and production of glass.
Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 1989 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contemporary Topics about Phosphorus in Biology and Materials written by David Churchill and published by BoD – Books on Demand. This book was released on 2020-09-09 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses a diverse set of topics regarding phosphorus chemistry, namely phosphates and closely related chemical systems. Divided into two sections, chapters cover such topics as phosphate dynamics and phosphates in biomaterials. This volume is a useful reference for scholars and researchers and will inspire readers to make future discoveries in the field.
Download or read book Handbook of Clinical Techniques in Pediatric Dentistry written by Jane A. Soxman and published by John Wiley & Sons. This book was released on 2016-05-03 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Clinical Techniques in Pediatric Dentistry provides the clinician with an increased level of expertise and skills for timely identification and intervention for various presentations in the developing dentition. It also clearly describes procedures for treatment in the primary and young permanent dentitions, including pulp therapy for primary and young permanent molars, extractions, space maintenance, and more. The most commonly encountered treatment needs are discussed with the goal of increasing clinician and staff confidence while decreasing chair-time and stress. With an emphasis on practical instruction, The Handbook of Clinical Techniques in Pediatric Dentistry is ideal for pediatric and general dentists, pediatric residents, and dental students taking clinical pediatric courses.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2002 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Composites and Their Applications written by Ning Hu and published by IntechOpen. This book was released on 2012-08-22 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composites are a class of material, which receives much attention not only because it is on the cutting edge of active material research fields due to appearance of many new types of composites, e.g., nanocomposites and bio-medical composites, but also because there are a great deal of promise for its potential applications in various industries ranging from aerospace to construction due to its various outstanding properties. This book mainly describes some potential applications and the related properties of various composites by focusing on the following several topics: health or integrity monitoring techniques of composites structures, bio-medical composites and their applications in dental or tissue materials, natural fiber or mineral filler reinforced composites and their property characterization, catalysts composites and their applications, and some other potential applications of fibers or composites as sensors, etc. This book has been divided into five sections to cover the above contents.
