Zirconia connector failures: lessons to learn - Dr. Susanne Scherrer
Time: 2:45 PM, February 24, 2023
Early failures due to fracture of fixed dental prosthesis made of “monolithic” zirconia have to be critically analyzed. The recovered broken parts can inform the practitioner and the laboratories about the cause of failure and alert them to the critical design parameters and surface treatment to address to ensure future success. This presentation will follow through an investigation of a series of actual clinical cases examining the retrieved fractured portions of “monolithic” zirconia FPD using the scientific tool of fractographic failure analysis. These cases will highlight issues related to zirconia material science, lab processing, design, surface treatment and the important lessons that can be learned from such premature fractures.
- To gain understanding in the key differences in the properties between a 3Y stabilized zirconia and the more translucent zirconia materials available for monolithic FDP
- To provide insights from fractographic analysis of early failures of FPD
- Discuss the indications / limitations of zirconia-based restorations