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

Autor:	Jurado CA; Texas Tech University Health Sciences Center El Paso, Woody L. Hunt School of Dental Medicine., Mourad F; Department of Care Planning and Restorative Sciences, University of Mississippi Medical Center School of Dentistry., Trevino DAC; Department of Restorative and Prosthetic Dentistry, Ohio State University College of Dentistry., Gouveia DN; Department of Restorative and Prosthetic Dentistry, Ohio State University College of Dentistry., Hyer J; A.T. Still University Arizona School of Dentistry & Oral Health., Elgreatly A; Department of Operative Dentistry, University of Iowa College of Dentistry., Mahrous AM; Department of Prosthodontics, University of Iowa College of Dentistry., Garcia-Godoy F; Department of Bioscience Research, University of Tennessee Health Science Center College of Dentistry.; Forsyth Institute., Tsujimoto A; Department of Operative Dentistry, University of Iowa College of Dentistry.
Jazyk:	angličtina
Zdroj:	Dental materials journal [Dent Mater J] 2022 Apr 01; Vol. 41 (2), pp. 295-301. Date of Electronic Publication: 2022 Jan 29.
DOI:	10.4012/dmj.2021-253
Abstrakt:	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.
Databáze:	MEDLINE
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