Examinando por Materia "Portland cement"

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    Experimental compressive strength of Portland cement associated with zirconium microparticles compared to the mineral Trioxide added-in vitro. Lima-2020
    (Universidad Privada Norbert Wiener, 2021-05-11) Cherres Sevilla, Reina Ysabel; Garavito Chang, Enna Lucila
    Calcium silicate cements are commonly used in the field of endodontics. For this reason, Portland cement, due to its very similar composition, is being used for various endodontic therapies. This thesis aims to determine the experimental compressive strength of Portland cement associated with zirconia microparticles compared to MTA in Lima, 2020. The study is in vitro experimental. Portland cement, MTA Angelus cement, and Portland cement associated with zirconia microparticles were used in a sample consisting of 10 test bodies per group, totaling (n=30). The experimental compressive strength of the cements was evaluated using the Universal Instron® testing machine with compressive load in kN at a speed of 1mm/min, expressed in MPa. The results showed that Portland cement (CP) had the highest strength, followed by MTA-Angelus, and the Portland cement + zirconium microparticles (CP + OZi) group showed the lowest strength after 48 hours. Conclusion: Zirconia microparticles associated with Portland cement did not improve the mechanical properties after 48 hours, but Portland cement could potentially be used as an alternative to MTA-based materials.