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Comparison of full and partial coverage crowns with CAD/CAM leucite reinforced ceramic blocks on fracture resistance and fractographic analysis
Journal article   Open access   Peer reviewed

Comparison of full and partial coverage crowns with CAD/CAM leucite reinforced ceramic blocks on fracture resistance and fractographic analysis

Carlos A Jurado, Firas Mourad, Daniel Alberto Cortes Trevino, Diogo N Gouveia, Jared Hyer, Amira Elgreatly, Ahmed M Mahrous, Franklin Garcia-Godoy and Akimasa Tsujimoto
Dental materials journal, Vol.41(2), pp.295-301
01/29/2022
DOI: 10.4012/dmj.2021-253
PMID: 35095042
url
https://doi.org/10.4012/dmj.2021-253View
Published (Version of record) Open Access

Abstract

To compare full and partial coverage crowns made with different CAD/CAM leucite reinforced ceramic blocks on fracture resistance and fractographic analysis. Full coverage and partial coverage crowns with finish line at 2 mm and 4 mm above the gingiva for molars made with IPS Empress CAD and Rosetta BM. After fatigue process, the fracture test and fractographic analysis were conducted. Although the fracture resistance of IPS Empress crowns did not show any statistical differences regardless of the design, both the partial coverage crowns fabricated using Rosetta BM showed significantly higher load at break and peak load than the full coverage crown. The crowns made with IPS Empress showed significantly higher fracture resistance than that made with Rosetta BM, regardless of the restorative design. The fracture resistance and fractographic analysis of CAD/CAM leucite reinforced full and partial coverage crowns were influenced by the restorative design of and material type.
Fractographic analysis Leucite Crown Fracture resistance CAD/CAM

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