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Investigating the Effect of Different Surface Treatments on Vickers Hardness and Flexural Strength of Zirconium and Lithium Disilicate Ceramics
Author(s) -
Ozdogan Alper,
Yesil Duymus Zeynep
Publication year - 2020
Publication title -
journal of prosthodontics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.902
H-Index - 60
eISSN - 1532-849X
pISSN - 1059-941X
DOI - 10.1111/jopr.12939
Subject(s) - materials science , vickers hardness test , flexural strength , cubic zirconia , ceramic , zirconium , hardness , composite material , lithium disilicate , lithium (medication) , metallurgy , microstructure , medicine , endocrinology
Purpose To investigate the effect of different surface treatments on Vickers hardness and flexural strength of zirconia and lithium disilicate ceramics. Materials and Methods 50 zirconia and 50 lithium disilicate ceramic specimens were used. After identifying one group as the control, grinding, sandblasting, CoJet, and Er:YAG laser were applied on the surface of specimens (n = 10). After applying Vickers hardness test to specimens, flexural strength test was performed. The data were analyzed with two‐way ANOVA and Duncan's multiple comparisons tests. Results There were statistically significant differences found between surface treatment groups in terms of Vickers hardness of zirconia and lithium disilicate ceramics ( p < 0.001), but there were no statistically significant differences found between surface treatment groups in terms of flexural strength ( p > 0.05). Conclusions Surface treatments could affect the hardness of ceramics. Therefore, was zirconia found to be harder and more durable than lithium disilicate ceramics.