CAD/CAM lithium disilicate ceramic crowns: Effect of occlusal thickness on fracture resistance and fractographic analysis
Document Type
Article
Publication Title
Dental Materials Journal
Abstract
This study uses fracture tests and fractographical analysis to compare computer-aided design and computer-aided manufacturing (CAD/CAM) lithium disilicate molar crowns with the previous occlusal thickness recommendation of 1.5-mm, the new recommendation of 1.0-mm, and a less invasive thickness of 0.8-mm. After fatigue application, fracture tests and fractographic analysis were conducted. The fracture resistance of CAD/CAM lithium disilicate molar crowns was different depending on the occlusal thickness of the restoration, and decreased with lower the thickness. However, the fracture resistance of crowns of all three thicknesses exceeded the reported maximum bite force in the first molar region after the fatigue process, and can be considered acceptable for use in the clinic.
First Page
705
Last Page
709
DOI
10.4012/dmj.2022-018
Publication Date
1-1-2022
Recommended Citation
Jurado, Carlos A.; Pinedo, Francisco; Cortes Trevino, Daniel Alberto; Williams, Quotasze; Marquez-Conde, Alberto; Irie, Masao; and Tsujimoto, Akimasa, "CAD/CAM lithium disilicate ceramic crowns: Effect of occlusal thickness on fracture resistance and fractographic analysis" (2022). ASDOH Faculty Publications. 155.
https://scholarworks.atsu.edu/asdoh-faculty/155