Examinando por Materia "Intermaxillary elastics"

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    Degradation of forces of intermaxillary latex elastics in different time intervals
    (Universidad Privada Norbert Wiener, 2023-11-15) Villarreal Allca, Ana Jhoselyn; Gómez Carrión, Christian Esteban
    The objective was to compare the force degradation in vitro of different brands of latex intermaxillary elastics. Materials and Methods: The study was experimental in vitro. The sample consisted of 90 latex intermaxillary elastics of 6.0 oz and 5/16 inches from the brands Morelli, Orthometric, and GAC (30 from each commercial brand). Acrylic bases were made, into which metallic pins were inserted to keep the elastics stretched at a distance of 15 mm. These pins then stretched the elastics to a constant distance of 24 mm. The force of the elastics was measured using a digital universal testing machine. Force measurements were taken at the beginning, and after 12 and 24 hours. The relationship between variables was determined using Student's t-test, the Wilcoxon signed-rank test, ANOVA, and Kruskal-Wallis. Results: It was found that all three commercial brands showed a significant decrease in their forces at all time intervals (P: 0.000). When comparing the groups, Orthometric elastics showed the least force decrease at all time intervals (P: 0.000), while Morelli and GAC showed no significant differences (P > 0.05). Conclusion: All three commercial brands showed a significant decrease in their forces over time.