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Assessment of mineral trioxide aggregate setting in simulated root canal with different root canal wall thickness: in vitro study

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    0549224 - FZÚ 2022 RIV CH eng J - Článek v odborném periodiku
    Žižka, R. - Čtvrtlík, R. - Tomáštík, Jan - Fačevicová, K. - Vencálek, O. - Šedý, J. - Marinčák, D.
    Assessment of mineral trioxide aggregate setting in simulated root canal with different root canal wall thickness: in vitro study.
    Applied Sciences-Basel. Roč. 11, č. 4 (2021), č. článku 1727. E-ISSN 2076-3417
    Institucionální podpora: RVO:68378271
    Klíčová slova: mineral trioxide aggregate * bioceramic cement * setting * dentin * microhardness * modulus of elasticity * nanoindentation
    Obor OECD: Dentistry, oral surgery and medicine
    Impakt faktor: 2.838, rok: 2021
    Způsob publikování: Open access

    Setting of mineral trioxide aggregate (MTA) is affected by various factors. The purpose of this in vitro study was to evaluate the influence of root canal wall thickness on mechanical properties of MTA along the whole apical plug. Bovine bone mold tubes with internal diameter of 2 mm, height of 5 mm, and wall thickness of 0.8 mm, 1.2 mm, and 1.6 mm were filled with 3 mm ProRoot MTA and were kept in 37 degrees C and relative humidity of 100% for 7 days. The indentation hardness and reduced modulus of elasticity were measured in a large overview matrix and detailed matrix placed 1.5 mm from simulated apical foramen in order to obtain particularized information about gradient of altering mechanical properties. The uppermost layer of material in contact with simulated apical foramen had reduced mechanical properties irrespective of root canal wall thickness.
    Trvalý link: http://hdl.handle.net/11104/0325268

     
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