Examinando por Autor "Ibarra Costas, Robert Virgilio"

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Acceso abierto
Pigmentation of teeth by immersion in artificial chicha morada after whitening with 35% hydrogen peroxide
(Universidad Privada Norbert Wiener, 2021-07-05) Ibarra Costas, Robert Virgilio; Girano Castaños, Jorge Alberto
Objective: To determine the pigmentation of dental pieces immersed in artificial chicha morada after bleaching with 35% hydrogen peroxide. Materials and Methods: This study was experimental, prospective, longitudinal, and descriptive. The sample consisted of 48 extracted human teeth meeting the inclusion and exclusion criteria. The sample size was determined using the formula for estimating proportions for a finite population (FISTERRA formula for quantitative variables). Each tooth underwent a bleaching process with 35% hydrogen peroxide, followed by immersion in artificial chicha morada for 30 minutes over 28 days. A database of color changes was created using a spectrophotometer. Results: In the control group (immersed in distilled water), the average luminosity range decreased from 88.30 to 83.41 over the bleaching and 28-day treatment period. In the treated group (immersed in artificial chicha morada), the average luminosity range decreased from 89.30 to 83.87 during the same period. Conclusions: A decreasing trend in luminosity was observed in both groups. The decrease occurred earlier in the treated group; however, by the end of the study, the control group reached similar luminosity levels as the treated group. The differences between the two groups were not statistically significant.