Examinando por Autor "Adrianzen Acurio, César Augusto"

Mostrando 1 - 3 de 3

Acceso abierto
Comparación de la resistencia a la adhesión de dos resinas convencionales con y sin tratamiento de arenado: un estudio in vitro. Lima 2022
(Universidad Privada Norbert Wiener, 2025-07-09) Olivares Amasifuentes, Fabiana María; Adrianzen Acurio, César Augusto
El objetivo fue comparar la resistencia a la adhesión entre la resina convencional Filtek Z350 3M y Tetric N-Ceram Ivoclar Vivadent con y sin tratamiento de arenado. El método de estudio fue deductivo, enfoque cuantitativo, tipo fue aplicada. Se utilizaron 50 muestras, las cuales se dividieron en cinco grupos de 10, donde el grupo 1, grupo control; grupo 2, Filtek Z350 con tratamiento de arenado; grupo 3, Filtek Z350 sin tratamiento de arenado; grupo 4, Tetric N Ceram con tratamiento de arenado; grupo 5, Tetric N-Ceram sin tratamiento de arenado. Se encontró que la resina Tetric N-Ceram con tratamiento de arenado tuvo la media de la resistencia a la adhesión más alta ascendiendo a 5.7 Mpa comparada con otras resinas y sus tratamientos. Con respecto a la resina Filtek z350 3M convencional sin tratamiento de arenado tiene una media de resistencia similar a la del grupo de resina Tetric N-Ceram sin tratamiento de arenado (4.4 Mpa), es importante señalar que la resistencia promedio más baja la obtuvo la resina Filtek z350 3M convencional con tratamiento de arenado obteniéndose solo 4.2 Mpa de resistencia. Además, no se halló diferencia en la resistencia a la adhesión de los grupos de resinas. Se concluye respecto a la resistencia a la adhesiónn de la resina Filtek z350 3M convencional sin tratamiento de arenado tiene una media de resistencia similar a la del grupo de resina Tetric N-Ceram sin tratamiento de arenado.
Acceso abierto
Flexural resistance of Ivoclar Vivadent Triplex Hot heat-cured acrylic using two polymerisation methods for the manufacture of dental prostheses: in vitro study. Lima, Peru 2021
(Universidad Privada Norbert Wiener, 2023-11-24) Lazarte Melgarejo, Claudio Gabriel; Adrianzen Acurio, César Augusto
Objective: To determine the flexural strength of Ivoclar Vivadent Triplex Hot thermocured acrylic using two polymerization methods for the fabrication of dental prostheses. Methodology: A total of 24 Triplex Hot acrylic bars were used, divided into 2 groups. The first group consisted of 12 bars of acrylic made by the conventional heat method, and the second group consisted of 12 bars made using the microwave method. A constant downward force of 1 mm/min was applied at the center of the length of each acrylic bar until fracture occurred. Results: The flexural strength of Ivoclar Vivadent Triplex Hot thermocured acrylic using the conventional polymerization method was 100.08 ± 4.60 MPa, while the flexural strength using the microwave polymerization method was 103.28 ± 3.28 MPa. Conclusion: No statistical disparity was found between the results (p > 0.05), with the largest difference in flexural strength between the conventional polymerization method and the microwave method being 3.2 MPa.
Acceso abierto
Resistance to fracture of fluid and bulk-type resins in comparison to conventional resins. in vitro study. Lima Perú. 2020.
(Universidad Privada Norbert Wiener, 2020-12-29) Collao Huerta, Oscar Pablo Cesar; Adrianzen Acurio, César Augusto
Objective: To determine the fracture resistance of flowable and bulk-fill resins compared to conventional resins. Methodology: Three types of resins were used: a conventional resin, a flowable resin, and a bulk-fill resin, each shaped into cylinders with dimensions of 8 millimeters in height and 4 millimeters in diameter. The sample size was determined by sample calculation, using 10 resin cylinders of each type, which were subjected to compression by a universal testing machine. This machine applied a compressive force on the resin cylinders at a rate of 1 mm/min of compression until the cylinders fractured. Data processing was carried out using SPSS software with the ANOVA statistical test. Results: It was found that the fracture resistance of conventional resin was 149.879 ± 18.609 Megapascals, the fracture resistance of the flowable resin was 122.994 ± 26.906 Megapascals, and the fracture resistance of the bulk-fill resin was 122.994 ± 26.906 Megapascals. Conclusion: The flowable resin exhibited higher fracture resistance than the conventional resin, and the latter showed greater resistance than the bulk-fill resin.