Future perspectives of biomaterials for dental restoration |
| |
| Authors: | W Höland V Rheinberger E Apel C Ritzberger F Rothbrust H Kappert F Krumeich R Nesper |
| |
| Affiliation: | 1. Ivoclar Vivadent AG, Research and Development, Bendererstr. 2, Li-9494 Schaan, Liechtenstein;2. Eidgenössische Technische Hochschule, Laboratorium Anorganische Chemie, Hönggerberg HCI 105, Wolfgang-Pauli-Strasse 10, CH-8093 Zürich, Switzerland;1. Department of Ceramic Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India;2. Department of Chemical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi-221005, India.;1. Division of Clinical Dentistry, School of Dentistry, International Medical University, 57000 Kuala Lumpur, Malaysia;2. School of Medicine and Dentistry, University of Aberdeen, Aberdeen AB25 2ZD, UK;3. Modern Dental College & Research Centre, Indore, Madhya Pradesh 45311, India;4. Division of Oral Diagnostic and Surgical Sciences, School of Dentistry, International Medical University, 57000 Kuala Lumpur, Malaysia;5. Faculty of Pharmacy, Lincoln University College, Petaling Jaya, Selangor, Kuala Lumpur 47301, Malaysia;6. Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741 246, West Bengal, India;7. Department of Pharmaceutical Technology, The International Medical University, Jalan Jalil Perkasa 19, Kuala Lumpur 57000, Malaysia;1. Division of Biomaterials, University of Alabama at Birmingham School of Dentistry, Birmingham, AL, USA;2. Indiana University School of Dentistry, Indianapolis, IN, USA;1. Department of Chemical and Materials Engineering, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand;2. School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China;1. Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Germany;2. Department of Operative and Preventive Dentistry, Charité – Universitätsmedizin Berlin, Germany |
| |
| Abstract: | The development of biomaterials that can be used to substitute metals in dental restorations represents the main challenge of future research activities until the year 2020. Therefore, the authors will focus on the presentation of two types of biomaterials for dental restoration: glass-ceramics and sintered ceramics. Dental biomaterials must have a highly aesthetic appearance that is comparable to that of natural teeth. Furthermore, they must be more durable than natural teeth and show good mechanical properties at ambient temperatures.Based on the state of the art and the latest research activities, the presentation is focused on glass-ceramics with high toughness, glass-ceramics with optical properties comparable to those of natural teeth and glass-ceramics that are processed with preferred techniques, for example, those which are moulded on different types of high-strength substrate materials. In addition, high-strength and high-toughness materials such as lithium disilicate glass-ceramics can be processed either by moulding or by a new method, that is, machining. Possible directions will be presented for moulding different types of glass-ceramics such as fluoroapatite containing glass-ceramics on high-toughness substrates made of glass-ceramics or very tough sintered ceramics.The focal point of this presentation is the demonstration of the high-strength and high-toughness sintered ceramics of the ZrO2 type. The preferred processing method of this type of biomaterials for dental restoration is machining using CAD/CAM technologies. Future activities will be focused on improving the quality of the ZrO2-type biomaterial. At present ZrO2 ceramics are white opaque. One of the main aims is to achieve optical properties comparable to those of natural teeth in ZrO2 ceramic. Therefore, the material has to be developed in special dental colours with the same mechanical properties and good durability as that of the white ZrO2. The authors will show future directions for developing coloured ZrO2 sintered ceramics.Future research activities will be focused on gaining a better understanding of the phenomena and mechanisms of toughening glass-ceramics and ceramics. With the acquired knowledge on the toughening mechanisms, new directions for developing ceramics until the year 2020 will be explored. The technology to achieve this goal will be applied nanotechnology. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
