LOGIN
 
Share Page:
Back

Volume 29 , Issue 4
July/August 2016

Pages 369371


Fracture Strength After Fatigue Loading of Lithium Disilicate Pressed Zirconia Crowns

So-Yeun Kim, DDS, MSD, PhD/Jae-Won Choi, MSD/Sung-Won Ju, MS/Jin-Soo Ahn, DDS, MS, PhD/Mi-Jung Yoon, DDS, MSD, PhD/Jung-Bo Huh, DDS, MSD, PhD


PMID: 27479345
DOI: 10.11607/ijp.4602

Purpose: The aim of this study was to evaluate the fracture resistance of fatigued lithium disilicate pressed zirconia crowns versus other ceramic crowns. Materials and Methods: Lithium disilicate pressed zirconia, fluorapatite pressed zirconia, monolithic lithium disilicate, and monolithic zirconia crowns were fabricated. Cyclic and static loadings were applied to the mesiobuccal cusp tip after thermocycling and fracture strengths were recorded. Results: Fatigued lithium disilicate pressed zirconia crowns were found to have a fracture resistance of 9,117.81 727.04 N, compared with 9,240.61 887.21 N for monolithic zirconia crowns, 3,030.18 1,505.83 N for fluorapatite pressed zirconia crowns, and 4,173.94 877.46 N for monolithic lithium disilicate crowns (P = .001). Conclusion: This in vitro study shows that fatigued lithium disilicate pressed zirconia and monolithic zirconia crowns have better fracture resistance than fluorapatite pressed zirconia and monolithic lithium disilicate crowns.


Full Text PDF File | Order Article

 

 
Get Adobe Reader
Adobe Acrobat Reader is required to view PDF files. This is a free program available from the Adobe web site.
Follow the download directions on the Adobe web site to get your copy of Adobe Acrobat Reader.

 

© 2019 Quintessence Publishing Co, Inc

IJP Home
Current Issue
Ahead of Print
Archive
Author Guidelines
About
Submission Form
Submit
Reprints
Permission
Advertising
Quintessence Home
Terms of Use
Privacy Policy
About Us
Contact Us
Help