Download or read book The Hydration of a High Alkali Porcelain and Its Effect on In Vitro Human Enamel Wear Flexure and Impact Strength written by Hal O'Kray and published by . This book was released on 2001 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Hydration on the Strength of All Ceramic Porcelain Crowns written by Nikolaos Tselios and published by . This book was released on 2003 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An in Vitro Investigation of the Wear of Human Enamel by Dental Porcelain written by Kurt Metzler and published by . This book was released on 1998 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Different Dental Ceramic Systems on The Wear of Human Enamel written by Rabie M. El huni and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book In vitro Wear of Enamel Opposing Titanium Porcelain written by Mohammed Dhaifallah Al Amri and published by . This book was released on 2004 with total page 310 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 69th Porcelain Enamel Institute Technical Forum Volume 28 Issue 10 written by Porcelain Enamel Institute. Technical Forum and published by Wiley-American Ceramic Society. This book was released on 2008-03-21 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Based upon conference proceedings, including papers, from the 69th Annual Porcelain Enamel Institute Technical Forum which was held in Nashville, Tennessee in May 2007"--Publisher's website.
Download or read book AN IN VITRO STUDY ON THE WEARING EFFECT OF PORCELAIN ON HUMAN ENAMEL AND SOME DENTAL RESTORATIVE MATERIALS written by KHALED MOHAMED MOHAMED HAGGAG and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Enamel Wear on the Metal porcelain Interface written by Ronald Marvin Fisher and published by . This book was released on 1979 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book In Vitro Evaluation of Antagonistic Wear of Compomere Systems Against Human Enamel written by Douglas Harlan Grant and published by . This book was released on 1997 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AN IN VITRO STUDY ON WEARING EFFECT OF TWO TYPES OF POLISHED GLAZED DENTAL PORCELAIN AND CEROMER ON HUMAN ENAMEL written by MOHAMMED HOSNY ABD EL-AZIZ and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wear Behaviour of Human Enamel Opposing Lithium Disilicate Glass Ceramic and Type III Gold written by Ahreum Lee and published by . This book was released on 2012 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An in Vitro Investigation Into the Effect of Impact Stress on the Wear of Some Restorative Materials and Enamel written by Ramlah Abdul Aziz and published by . This book was released on 1987 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Test for Alkali Resistance of Porcelain Enamel written by Porcelain Enamel Institute. Quality Development Committee and published by . This book was released on 1965 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Wear Acid Etching and Bond Removal on Human Enamel written by Donald Allison Fitzpatrick and published by 1977.. This book was released on 1977 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Calcium Orthophosphates written by Sergey V. Dorozhkin and published by CRC Press. This book was released on 2012-06-04 with total page 863 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to a great chemical similarity with the biological calcified tissues, many calcium orthophosphates possess remarkable biocompatibility and bioactivity. Materials scientists use this property extensively to construct artificial bone grafts that are either entirely made of or only surface-coated with the biologically relevant calcium orthophospha
Download or read book Handbook of Biomaterial Properties written by William Murphy and published by Springer. This book was released on 2016-06-11 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides tabular and text data relating to normal and diseased tissue materials and materials used in medical devices. Comprehensive and practical for students, researchers, engineers, and practicing physicians who use implants, this book considers the materials aspects of both implantable materials and natural tissues and fluids. Examples of materials and topics covered include titanium, elastomers, degradable biomaterials, composites, scaffold materials for tissue engineering, dental implants, sterilization effects on material properties, metallic alloys, and much more. Each chapter author considers the intrinsic and interactive properties of biomaterials, as well as their appropriate applications and historical contexts. Now in an updated second edition, this book also contains two new chapters on the cornea and on vocal folds, as well as updated insights, data, and citations for several chapters.
