Download or read book Investigation of a Dental Gold Alloy and Its Ceramic Bonding written by Antti Yli-Urpo and published by . This book was released on 1975 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of a Dental Gold Alloy and Its Ceramic Bonding written by Antti Yli-Upro and published by . This book was released on 1975 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of the Gold Oxidation Process in the Porcelain Fused to Gold Bond written by Frederic Custer and published by . This book was released on 1961 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Alternatives to Gold Alloys in Dentistry written by Thomas M. Valega and published by . This book was released on 1977 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of a Dental Fold Alloy and Its Ceramic Bonding written by Antti Yli-Urpo and published by . This book was released on 1975 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Bonding Between Metals and Ceramics written by H. J. Hamjian and published by . This book was released on 1949 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: The experiments conducted with boron carbide and each of four metals showed that nickel, cobalt, and iron formed a bonding zone between the metal and the ceramic and that chromium showed satisfactory physical wetting characteristics on the ceramic.

Download or read book Dental Gold Alloys and Gold Nanoparticles for Biomedical Applications written by Rebeka Rudolf and published by Springer Nature. This book was released on 2022-04-11 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on recent advances in dental gold alloys and gold nanoparticles (GNPs) for biomedical applications. Dental gold alloys combine several highly desirable mechanical properties, such as high strength, ductility, and elasticity, with an extremely robust chemical stability in the mouth. Moreover, astonishing progress has been made in the use of GNPs as novel gold biomaterials that provide a multifunctional platform for cellular imaging, biosensing, and targeted drug delivery in tumour immunotherapy and photothermal therapy. Beginning with a comprehensive overview of the development and use of dental gold alloys, the book addresses the materials properties that are crucial for dental applications, focusing on aspects such as microstructure, chemical and mechanical stability, ageing, biocompatibility, and colour retention. The book then shifts focus to the use of GNPs in dental applications, delving into different techniques of GNP synthesis for specifically tailoring the size, shape, and stability of GNPs in biological media. In addition to these factors, it addresses how their exposure route, surface chemistry, as well as how the steric effects of their coating impact biodistribution and determine the level of GNP toxicity in the human body. Featuring topical literature reviews alongside up-to-date published experimental results, this book offers an attractive resource for practicing scientists and engineers working in the field of gold-based biomaterials.

Download or read book Oxidation and Bonding of Alloys Used for Ceramic metal Restorations written by Laurence William Seluk and published by . This book was released on 1977 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Science and Art of Dental Ceramics Volume II written by John W. McLean and published by Quintessenz Verlag. This book was released on 2019-09-11 with total page 753 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this second volume, with numerous color photographs and diagrams, detailed techniques for making metaloceramic and alumina-reinforced crowns and bridges are presented. Special effects in dental procelain, the Wedge Technique, development of correct anatomy, methods for avoiding loss of detail during glazing, casing technique, surface finishing of metal - these topics and more are critically examined in light of current research.

Download or read book Bonding of Dental Alloys to Enamel written by 孔祥陞 and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Bonding of Dental Alloys to Enamel" by 孔祥陞, Cheung-sing, Tony, Hung, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract 1 ABSTRACT Purpose: To investigate effects of metal thicknesses and surface treatment methods on the shear bond strength of a dual cured composite resin bonded to three different ceramo-metal dental alloys: nickel-chromium, high-gold and high-palladium dental alloys. Materials and Methods: A dual-cured adhesive composite resin was used to bond dental metal alloy plates of different thickness, composition and surface treatment to acid etched bovine enamel. The specimens (n=180) were stored in water for 24 hours and then loaded in shear with a universal testing machine to failure and bond strengths were recorded. Results: Using ANOVA, the mean shear bond strength for nickel chromium was found to be significantly higher than the other two noble metals (P0.05). Heat treatment of the noble metals showed no significant difference in bond strength compared with sandblasted samples (P>0.05). There was a significant increase in mean shear bond strength with increase in metal 1 Abstract thickness from 0.5mm to 0.7mm (PConclusion: Within the limitations of this study, resin-bonded metal alloy restorations with thickness of 0.7mm or more are preferred over 0.5mm thickness. The differences in shear bond strength between the two noble alloys and the nickel chromium alloy is likely due to the lack of suitable metal oxide. Heat treatment of precious metal alloys did not increase the bond strength to etched enamel and therefore further studies should investigate the use of copper containing gold and non-gold noble alloys which are thought to create suitable oxides for bonding. The relationship between composition of metal alloy, method of surface treatment and the choice of adhesive primer should be carefully considered before clinical use. DOI: 10.5353/th_b3955815 Subjects: Dental metallurgy Dental enamel Dental bonding

Download or read book Alternatives to gold alloys in dentistry written by and published by . This book was released on 1977 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of the Bonding Mechanisms Between Metals and Ceramics written by Claës Ivar Helgesson and published by . This book was released on 1966 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of the bonding mechanism between metals and ceramics written by Claës I. Helgesson and published by . This book was released on 1966 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of Certain Variables Concerning Tarnish and Corrosion of Dental Gold Alloys written by George Von Mohr and published by . This book was released on 1962 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Orthodontic Bonding to Dental Gold Alloy written by Gregory Charles Forsyth and published by . This book was released on 1987 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Interaction Between Enamel Porcelain and a Gold Alloy written by Uyen Tran Kieu Ha and published by . This book was released on 2011 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: In dental practice, wear of the natural dentition is commonly seen in patients of all ages. It can have a mild effect on teeth, or be severe enough to affect patients' quality of life. Although different indirect restorative materials such as gold alloy or porcelain have been used for many years to restore excessively worn teeth, the procedures are generally complex and challenging to the dentists as well as costly and time-consuming for the patients. A good restorative material should be aesthetic, durable and not be abrasive to the opposing dentition. Gold has been reported to be "enamel-friendly", but the colour makes it un-aesthetic. On the contrary, porcelain is aesthetic, biocompatible, durable and has become a popular choice for both clinicians and patients. However, previous studies have shown that some of the porcelain systems can be abrasive to the opposing natural enamel. The use of such abrasive porcelain systems would therefore be harmful to a patient's dentition in the long term. Four porcelain systems and a gold alloy have been selected for this study: a veneering porcelain normally used in porcelain bonded to metal restorations (PBM-veneering porcelain); a leucite-reinforced glass ceramic used for veneering (LR-veneering ceramic); a leucite-reinforced pressable ceramic (LR-pressable ceramic); a machinable ceramic; a type III gold alloy (gold). The aims of the study were to determine the wear rates of the selected porcelains and opposing enamel under controlled conditions which simulated two clinical conditions: heavy attrition at near neutral pH (pH 6.1); heavy attrition with gastric regurgitation (pH 1.2). In addition, preliminary studies on the wear of zirconia and enamel were conducted. In this study, electro-mechanical tooth wear machines were used to simulate wear. Wear volume loss was measured by scanning specimens with 3D profilometers and evaluating the data using a purpose-written software. The surface micromorphology of wear facets was also observed by scanning electron microscopy (SEM). As a result of this analysis a more detailed investigation of the machinable ceramic was undertaken. The results revealed that at pH 6.1, while enamel wear caused by the PBM-veneering porcelain, LR-veneering ceramic, machinable ceramic and gold alloy were not significantly different to the control group in which enamel specimens were worn against each other, significantly increased enamel wear was associated with the LR-pressable. Although enamel wear rates increased dramatically in conditions simulating attrition combined with gastric regurgitation, the gold alloy did not wear the opposing enamel more than the enamel controls. In addition, in this study the machinable ceramic became porous under acidic conditions. The findings presented in this thesis have implications for selection of porcelain for specific clinical cases. Although the findings should be cautiously extrapolated to in vivo conditions, they contribute to the understanding of new porcelain materials in terms of wear and erosion. In addition, results from preliminary experiments with zirconia will provide data to inform the development of protocols for future research.

Download or read book A Study of the Bond Strengths of Ceramic and Resin to Various Dental Alloys Using a Silane Coupling Agent written by John J. Skowron and published by . This book was released on 1988 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: