Mechanical characterisation of CAD/CAM dental material and natural teeth
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43930608" target="_blank" >RIV/60461373:22310/24:43930608 - isvavai.cz</a>
Result on the web
<a href="https://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1999" target="_blank" >https://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1999</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.13168/cs.2024.0050" target="_blank" >10.13168/cs.2024.0050</a>
Alternative languages
Result language
angličtina
Original language name
Mechanical characterisation of CAD/CAM dental material and natural teeth
Original language description
The aim of this study was to investigate the hardness and the fracture toughness of dental ceramic materials by means of the Vickers indentation technique. One type of most common commercial restorative dental ceramic materials fabricated using CAD/CAM system leucite-based glass-ceramics was selected for study and comparison with laboratory synthetized leucite composites and natural teeth. Obtained results showed that the measurement of hardness and fracture toughness depends on the used conditions (the indenter geometry, the indentation load and the duration of maximal force), morphology of polished surface, type of crack system developed or measured indentations and of course on the empirical equation (Casellas, Shetty et al., Niihara et al., Lankford, Niihara, Laugier, Nakahira) used for calculation of fracture toughness. The results proved that the values of Vickers hardness of our laboratory prepared leucite composites (7.76 - 8.92 GPa) are very close to the values of commercial IPS Empress blocks. The Vickers indentation test was verified as a suitable method for evaluation of fracture toughness of small sized samples of leucite-based dental composites when using low indentation load of 9.807, 19.61, 29.42 and 39.23 N and indication of Palmqvist cracks.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20504 - Ceramics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
CERAMICS-SILIKATY
ISSN
0862-5468
e-ISSN
1804-5847
Volume of the periodical
68
Issue of the periodical within the volume
4
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
11
Pages from-to
516-526
UT code for WoS article
001296789200003
EID of the result in the Scopus database
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