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Effect of different storage media on the microhardness and wear resistance of resin‐matrix ceramics
Author(s) -
Dayan Süleyman Çağatay,
Mumcu Emre
Publication year - 2019
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.13307
Subject(s) - materials science , knoop hardness test , indentation hardness , distilled water , ceramic , composite material , matrix (chemical analysis) , microstructure , chemistry , chromatography
This in vitro study evaluated the microhardness and two‐body wear of various computer‐assisted design and computer‐assisted manufacturing (CAD/CAM) resin‐matrix ceramic materials stored in different storage media. For each material (Paradigm MZ100, Lava Ultimate, Vita Enamic, and Cerasmart), 40 disk‐shaped specimens (8 mm diameter × 3 mm thickness) were prepared and divided into four subgroups (n = 10) according to storage material (artificial saliva, distilled water, 0.02 mol/L citric acid, 3:1 ethanol/water). Following storage at 37°C for 7 days, microhardness was measured with a Knoop test, and wear was measured using a 3D scanner and surface analysis program before and after loading on a chewing simulator (200 000 cycles). Wear values of Vita Enamic were lower in comparison to the other materials tested ( P < 0.001). Storage media were found to have a significant effect on material microhardness ( P < 0.001), but not on wear ( P = 0.820).