Carganico, A., Caccia, M., Rossini, M., Figini, A., Oioli, G., Bittante, I. and Levrini, L. 2025. Comparison of two professional tooth whitening methods: preliminary results. Oral Hygiene Journal. 1, 1 (Dec. 2025), 42–46. DOI:https://doi.org/10.33393/ohj.2025.3686.