Influence of different surface treatments on two-body wear and fracture load of monolithic CAD/CAM ceramics

Objectives To investigate two-body wear (2BW) and fracture load (FL) of monolithic ceramics after different surface pretreatments. Materials and methods Zirconia (MOZ), lithium-disilicate (LIT), and leucite-reinforced (LEU) specimens ( n  = 60/group) were manufactured with CAD/CAM-technology and und...

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Bibliographic Details
Published in:Clinical oral investigations 2020-09, Vol.24 (9), p.3049-3060
Main Authors: Wiedenmann, Felicitas, Böhm, Denise, Eichberger, Marlis, Edelhoff, Daniel, Stawarczyk, Bogna
Format: Article
Language:English
Subjects:
Antagonists
Ceramics
Computer-Aided Design
Dental Porcelain
Dentistry
Kruskal-Wallis test
Lithium
Mastication
Materials Testing
Mechanical properties
Medicine
Original Article
Scanning electron microscopy
Surface Properties
Zirconia
Zirconium
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Summary:Objectives To investigate two-body wear (2BW) and fracture load (FL) of monolithic ceramics after different surface pretreatments. Materials and methods Zirconia (MOZ), lithium-disilicate (LIT), and leucite-reinforced (LEU) specimens ( n  = 60/group) were manufactured with CAD/CAM-technology and underwent ( n  = 15/subgroup): 1) grinding + polishing (GrPo), 2) grinding + glazing (GrGz), 3) grinding (Gr), or 4) glazing (Gz). Scanning electron microscope ( n  = 3/subgroup) and 3D measurements of the ceramic crowns and antagonists ( N  = 180) were performed to determine 2BW before and after 120,000/1,200,000 masticatory cycles. FL was examined for all specimens ( N  = 180). Data were analyzed using Kolmogorov-Smirnov, one-way ANOVA, Scheffé post hoc, Kruskal-Wallis, Mann-Whitney-U, and Wilcoxon ( p  
ISSN:1432-6981
1436-3771
DOI:10.1007/s00784-019-03173-8