Examinando por Materia "Strength"

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    Effect of 1.23% acidulated fluorphosphate and 2% sodium fluoride on the fracture resistance of resin-modified glass ionomer
    (Universidad Privada Norbert Wiener, 2024-06-14) Canales Rios, Alexandra Yveth; Menacho Angeles, Gregorio Lorenzo
    The methodological design was observational, comparative, and cross-sectional. A total of 45 samples of glass ionomer discs with a resin composition from a commercial brand (Vitremer) were used, with a diameter of 2 mm and a thickness of 6 mm, distributed into groups: for the first group, 15 discs of ionomer with a resin composition were treated with 0.05 ml of 1.23% fluoride from a commercial brand (Maquira); for the second group, 15 discs of ionomer with a resin composition were treated with 0.05 ml of 2% fluoride from a commercial brand (Maquira), and both groups were treated with fluoride for 4 minutes, followed by washing and drying. The third group consisted of 15 discs of ionomer with resin composition to which no fluoride was applied. The results of the Tukey HSD multiple comparison test showed a statistically significant difference (p=0.000) between the resistance of the acidulated phosphate fluoride group at 1.23% (mean=21.36360 Kg/mm²) and the control group (mean=25.36360 Kg/mm²). In conclusion, the average resistance of the fluoride group at 1.23% concentration and the fluoride group at 2% concentration did not show statistically significant differences (p=0.198).