Examinando por Autor "Vargas Rodríguez, Elena Cristina"

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    Evaluation of the effect of cigarette smokeon the color in acrylic resin teeth of the Ivostar and Olympic brands: in-vitro study, Lima 2022.
    (Universidad Privada Norbert Wiener, 2023-12-11) Vargas Rodríguez, Elena Cristina; Llerena Meza De Pastor, Verónica
    The objective of the study was to determine whether cigarette smoke affects the color of acrylic resin teeth from the Ivostar and Olympic brands: an in vitro study. An in vitro, comparative, prospective, and longitudinal study was conducted with 40 acrylic resin teeth from the Ivostar and Olympic brands, each consisting of n = 20 acrylic resin teeth. The initial luminosity, chroma, and hue of the acrylic resin teeth were evaluated using a Spectrophotometer (Vita Easyshade V). The teeth were then exposed to a cigarette smoke simulator, and the color was evaluated after 15 and 30 days. Numerical values were collected using a data collection sheet. The data were analyzed using SPSS version 22.0. The results showed that the mean luminosity for Ivostar brand teeth exposed to cigarette smoke initially was 85.29 nm, at 15 days it decreased to 83.3 nm, and at 30 days it further decreased to 81.57 nm. The chroma values initially were 24.57 nm, at 15 days 25.72 nm, and at 30 days 26.90 nm. The initial hue values were 88.38 nm, at 15 days 89.96 nm, and at 30 days 91.91 nm. The Olympic brand showed an initial luminosity of 83.84 nm, with 79.53 nm at 15 days and 76.6 nm at 30 days. The chroma mean values started at 19.28 nm, at 15 days it reached 21.28 nm, and at 30 days it was 23.95 nm. The hue values for Olympic brand teeth started at 90.24 nm, at 15 days reached 92.53 nm, and at 30 days it was 94.54 nm. In conclusion, Ivostar showed better initial luminosity values, which progressively decreased with exposure to cigarette smoke. As for chroma, Ivostar showed better initial values and an increase over time. However, Olympic exhibited changes in hue over the course of the study, with increases at 15 and 30 days.