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Effect of violet and blue light activation on in-office bleaching with 6% hydrogen peroxide: color change, penetration into the pulp chamber and bleaching gel stability

Crossref DOI link: https://doi.org/10.1007/s10103-026-04972-8

Published Online: 2026-07-29

Update policy: https://doi.org/10.1007/springer_crossmark_policy

Authors

Condolo, Letícia

W Favoreto, Michael

Madruga Barbosa, Laryssa Mylenna

S Vardasca, Isabela

Francci, Carlos

Reis, Alessandra

D. Loguercio, Alessandro https://orcid.org/0000-0001-9880-4856
Funding

Funding for this research was provided by:

Universidade Estadual De Ponta Grossa
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Article History

Received: 18 February 2026

Accepted: 22 July 2026

First Online: 29 July 2026

Declarations

Ethics approval: This in vitro study was approved by the Research Ethics Committee of State University of Ponta Grossa (PR/Brazil), (approval number 5731728). Procedures were conducted in accordance with the ethical standards of the institutional research committee and with the 1964 Declaration of Helsinki and its later amendments. Extracted human teeth were obtained from the Institutional Tooth Bank of the State University of Ponta Grossa (PR/Brazil), following established ethical guidelines.

Human Ethics and Consent to Participate declarations: Not applicable (in vitro study).

Competing interests: The authors declare no competing interests.

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