The Increasing Role of Fractography in the Dental Community
Janet Quinn, Susanne Scherrer, George D. Quinn
The development of new fabrication capabilities along with new alloys, polymers, composites and advanced ceramics has revolutionized many industries including the manufacture of dental restorations. The testing of dental materials has barely kept pace with these technological advances and new product development. Convincing longevity studies encompass time periods much longer than current market-driven introductions of novel dental material systems can afford. Consequently, greater dependence is necessarily being placed on fractography and failure analyses. These new dental materials are not all ceramic. While any brittle material could theoretically be analyzed by some of the fractographic techniques used in the advanced ceramic community, there has been little cross-over. The required properties for dental restorations appear to straddle many classes of materials, and is one likely reason for the current multiplicity of standards and test techniques in the dental literature. The establishment of relevant test techniques, longevity assessment and design criteria are linked by failure analyses and fractography. In this paper, the increasing importance of fractography in the field of dental restorations in general, and the idea of an application-based approach, is presented. Case study examples of failed ceramic crowns are included, and the establishment of a fractographic library of failed dental restorations discussed.
Fractography of Glasses and Ceramics Engineering and Science Proceedings | 2006 |
, Scherrer, S.
and Quinn, G.
The Increasing Role of Fractography in the Dental Community, Fractography of Glasses and Ceramics Engineering and Science Proceedings | 2006 |, Undefined
(Accessed December 2, 2023)