| Seq #132 |
Friday, 27 June 2003 |
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| 9:00 AM-11:00 AM Svenska Massan G3, Symposium - Group/Division Sponsored |
| Fracture Mechanics And Enhanced Performance |
| * Poster files available online |
Sponsored by: Dental Materials: I - Adhesion-Composite Bond Strength, Dental Materials: II - Adhesion-Other, Dental Materials: III - Ceramics and Cements, Dental Materials: VI - Polymer Materials-Mechanical Properties and Degradation, Dental Materials: VII - Others-Metallic, Dental Materials: VIII - Others-Non-metallic, Mineralized Tissue |
| Description: The aim of this symposium is to raise awareness regarding the advantages of applying fracture mechanics and fatigue crack propagation analysis to study dental materials and adhesive interfaces.
Dental materials embrace a wide class of materials from high modulus ceramics and metals to low modulus impression materials and in addition highly complex natural materials such as enamel and dentine. In all of these materials there are concerns about their fracture and or basis of selection to resist failure. Apart from their intrinsic properties, the field of dental materials is also concerned about the adhesion of many of these materials in a diverse array of conditions. To date evaluation of the latter topic has been dominated by strength testing in one of its many guises.
The presence of defects/flaws and fatigue result in fracture initiation and propagation, the two most important mechanisms responsible for the catastrophic failure of materials under stress. Fracture initiation and propagation constitute the main focus of fracture mechanics. Furthermore, the analysis and characterization of failed materials is invaluable for our understanding of structure - properties relationships and our ability to predict in service performance. Fracture mechanics provides criteria for material selection and structural design as well as a more fundamental basis whereby the strength properties and failure mechanisms of many dental materials can be addressed. Fracture mechanics has provided a sound theoretical basis for many other materials engineering disciplines particularly for the development of strategies for predicting reliability and design codes.
The symposium will offer an overview of the application of fracture mechanics and fatigue methodologies to the study of dental materials while promoting the idea that based on a fracture mechanics approach dental materials and dental adhesive interfaces with enhanced performance could be developed.
This symposium is supported by 3M ESPE |
| Chairperson: C.H. LLOYD |
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9:00 AM | Chair's Opening Remarks |
| 1241 |
9:05 AM | Fracture mechanics of natural tissues
M. SWAIN, Univerity of Sydney, Austria |
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9:25 AM | Fracture mechanics of dental ceramics
K.J. ANUSAVICE, University of Florida, Gainesville, USA |
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9:45 AM | Fracture mechanics of dental resin composites
J.L. FERRACANE, Oregon Health & Science University, Portland, USA |
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10:05 AM | Fracture mechanics and fatigue of dentin and adhesive interfaces
N.D. RUSE, Biomaterials, Faculty of Dentistry, UBC, Vancouver, Canada |
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10:25 AM | Fractography
S.S. SCHERRER, Univ. of Geneva, Dental School, Switzerland |
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10:45 AM | Panel Discussion |
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