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Erschienen in: Lasers in Medical Science 1/2024

01.12.2024 | Original Article

Catalysis-based approaches with biopolymers and violet LED to improve in-office dental bleaching

verfasst von: Rafael Antonio de Oliveira Ribeiro, Beatriz Voss Martins, Marlon Ferreira Dias, Victória Peruchi, Igor Paulino Mendes Soares, Caroline Anselmi, Josimeri Hebling, Carlos Alberto de Souza Costa

Erschienen in: Lasers in Medical Science | Ausgabe 1/2024

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Abstract

This in vitro experimental investigation aimed to evaluate the impact of the combined application of a nanofiber scaffold (NS), a polymeric catalyst primer (PCP) containing 10 mg/mL of heme peroxidase enzyme, and violet LED (LEDv) on the esthetic efficacy (EE), trans-amelodentinal cytotoxicity (TC), and procedural duration of conventional in-office bleaching therapy. To achieve this, 96 standardized enamel/dentin discs were individually placed in artificial pulp chambers. A 35% hydrogen peroxide (H2O2) bleaching gel was administered for 45, 30, or 15 min to the enamel, either previously coated with NS + PCP or left uncoated, followed by irradiation with LEDv for 15 min or no irradiation. The established groups were as follows: G1, negative control (no treatment); G2, 35% H2O2/45 min; G3, NS + PCP + LEDv; G4, NS + PCP + 35%H2O2/45 min + LEDv; G5, NS + PCP + 35%H2O2/30 min + LEDv; and G6, NS + PCP + 35%H2O2/15 min + LEDv. Extracts (culture medium + gel components diffused through the discs) were collected and applied to odontoblast-like MDPC-23 cells. EE (ΔE00 and ΔWI) and TC were assessed using ANOVA/Tukey analysis (p < 0.05). The EE analysis revealed no statistical differences between G6 and G2 (p > 0.05). Cells in G6 exhibited higher viability and lower oxidative stress compared to other bleached groups (p < 0.05). In conclusion, employing NS + PCP + LEDv to catalyze a 35%H2O2 bleaching gel applied for 15 min to the enamel resulted in successful esthetic improvements and reduced the cytotoxicity commonly linked with traditional in-office bleaching procedures.
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Metadaten
Titel
Catalysis-based approaches with biopolymers and violet LED to improve in-office dental bleaching
verfasst von
Rafael Antonio de Oliveira Ribeiro
Beatriz Voss Martins
Marlon Ferreira Dias
Victória Peruchi
Igor Paulino Mendes Soares
Caroline Anselmi
Josimeri Hebling
Carlos Alberto de Souza Costa
Publikationsdatum
01.12.2024
Verlag
Springer London
Erschienen in
Lasers in Medical Science / Ausgabe 1/2024
Print ISSN: 0268-8921
Elektronische ISSN: 1435-604X
DOI
https://doi.org/10.1007/s10103-023-03962-4

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