The Influence of Cutback Design on the Fracture Strength of Zirconia Crowns with Minimal Porcelain Veneering
2022-12
Loading...
View/Download File
Persistent link to this item
Statistics
View StatisticsJournal Title
Journal ISSN
Volume Title
Title
The Influence of Cutback Design on the Fracture Strength of Zirconia Crowns with Minimal Porcelain Veneering
Authors
Published Date
2022-12
Publisher
Type
Thesis or Dissertation
Abstract
The purpose of this study is to compare designs of partially veneered 3Y-TZP zirconia crowns, quantify the fracture and ultimate compressive loads and define the failure patterns. A premolar was prepared with a 1mm reduction. The die was duplicated, 30 specimens were fabricated and divided in 3 groups (n=10): Group A – Control (PFZ), Group B – Experimental #1 (Veneer) and Group C – Experimental #2 (Window). Zirconia copings were fabricated with manually layered porcelain. The crowns were cemented onto the dies using resin cement and the specimens were tested under axial loading. The mean FL were 1538.40N (A), 2025.33N (B) and 2266.03N (C), and the mean UCL were 1554.42N (A), 2032.85N (B) and 2279.39N (C). 26/29 specimens underwent core fracture, and 3/29 specimens experienced adhesive veneer fracture. In conclusion, there were statistical differences between the control and the experimental groups, but not between the experimental groups.
Description
University of Minnesota M.S. thesis. December 2022. Major: Dentistry. Advisor: Heather Conrad. 1 computer file (PDF); vii, 88 pages.
Related to
Replaces
License
Series/Report Number
Funding information
Isbn identifier
Doi identifier
Previously Published Citation
Suggested citation
Rainville, Louis. (2022). The Influence of Cutback Design on the Fracture Strength of Zirconia Crowns with Minimal Porcelain Veneering. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/252464.
Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.