Examinando por Materia "Resistencia a la abrasión"

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    Resistance to abrasion by dental brushing of Bulk-Fill resins of high and low viscosity In Vitro Lima 2022
    (Universidad Privada Norbert Wiener, 2023-04-08) Martel Condezo, Miqueas; Huamani Caquiamarca, Yuliana Esther
    Objective: The aim of this research was to determine the abrasion resistance due to tooth brushing of high and low viscosity Bulk-Fill resins. Methodology: An in vitro experimental study was conducted, with 45 resin samples distributed into three study groups. Group 1: High-viscosity bulk-fill resin (Filtek™ One Bulk Fill 3M-Espe), Group 2: Low-viscosity bulk-fill resin (Filtek™ Bulk Fill Flowable Restorative 3M-Espe), and Group 3: Conventional composite resin (Filtek™ Z250 XT 3M-Espe). The specimens were weighed before and after tooth brushing to determine mass loss. The brushing process was performed in a machine designed for this purpose, with 91,800 brushing cycles programmed, using medium bristle brushes and toothpaste. Results: Descriptive statistics were analyzed, and the Student's t-test for related data showed significant differences in weight before and after brushing in all resin groups. The Kruskal-Wallis test with Games-Howell post hoc analysis revealed significant differences in weight variation between the high-viscosity Bulk Fill resin and the conventional composite resin. Conclusion: Statistically significant weight loss occurred in all resins evaluated, and the abrasion resistance of the conventional resin was statistically significantly greater than that of the high-viscosity Bulk Fill resin.