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Fracture behaviour of teeth with conventional and mini-invasive access cavity designs
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SYSNO ASEP 0480604 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Fracture behaviour of teeth with conventional and mini-invasive access cavity designs Author(s) Chlup, Zdeněk (UFM-A) RID, ORCID
Žižka, R. (CZ)
Kania, J. (CZ)
Přibyl, M. (CZ)Number of authors 4 Source Title Journal of the European Ceramic Society. - : Elsevier - ISSN 0955-2219
Roč. 37, č. 14 (2017), s. 4423-4429Number of pages 7 s. Action FAC 2016 - International Conference on Fractography of Advanced Ceramics /5./ Event date 09.10.2016 - 12.10.2016 VEvent location Smolenice Country SK - Slovakia Event type WRD Language eng - English Country GB - United Kingdom Keywords endodontically treated premolars ; in-vitro ; maxillary premolars ; stress-distribution ; cusp coverage ; resistance ; composite ; resin ; restorations ; scaffolds ; Fracture resistance ; Cavity ; Tooth ; Compressive test ; Fractography Subject RIV JH - Ceramics, Fire-Resistant Materials and Glass OECD category Ceramics R&D Projects GA14-11234S GA ČR - Czech Science Foundation (CSF) ED1.1.00/02.0068 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFM-A - RVO:68081723 UT WOS 000408178300023 EID SCOPUS 85015990252 DOI https://doi.org/10.1016/j.jeurceramsoc.2017.03.025 Annotation Presented work is targeted toward fracture analysis of endodontically treated human teeth. Three sets of teeth were loaded by compression simulating natural loading conditions. For this purpose, each tooth was mounted into the resin in the axis angle declination of 30 and kept all the time in saline up to the moment of test to simulate the intraoral environment. Two access cavity designs mini-invasive (conservative) and conventional (traditional), were analysed. Fracture behaviour of treated teeth with mini-invasive access was compared with conventional and with the intact set of teeth. Complex monitoring of the fracture process together with loading traces enables to characterise typical fracture features and crack propagation schemes. The extensive fractographic analysis reveals the effect of adhesive bonding on the crack propagation. Also, fracture initiation and damage accumulation were identified. The quality of newly developed mini-invasive design in comparison with the conventional one was proved. (C) 2017 Elsevier Ltd. All rights reserved. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2018
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