{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,17]],"date-time":"2026-04-17T03:19:19Z","timestamp":1776395959316,"version":"3.51.2"},"reference-count":57,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2025,11,7]],"date-time":"2025-11-07T00:00:00Z","timestamp":1762473600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pharmaceutics"],"abstract":"<jats:p>Background: Candida albicans is increasingly recognized in peri-implantitis due to its capacity to form resilient biofilms on implant surfaces, limiting treatment success. Antimicrobial photodynamic therapy (aPDT) may offer a non-invasive adjunct by leveraging photosensitizer activation to produce reactive oxygen species that disrupt microbial cells. This in vitro study assessed the antifungal efficacy of QroxB2, a dual-photosensitizer containing riboflavin and curcumin, activated by 450 nm blue light against C. albicans biofilms on titanium implants. Methods: C. albicans biofilms were formed on 63 titanium implants and randomly assigned to nine groups (n = 7): untreated control (GC), chlorhexidine (CHX), riboflavin (RIB), curcumin (CUR), QroxB2 (QBX), laser only (L), and three photodynamic therapy groups combining laser irradiation with each photosensitizer (L + RIB, L + CUR, L + QBX). Treatments were followed by colony-forming unit (CFU) enumeration. Results: The L + QBX group showed the strongest antifungal effect, achieving a 94% reduction in fungal load, with median CFU counts decreasing from 49,000 in the untreated control to 2800 CFU\/mL. CHX eradicated all viable cells (0 CFU\/mL). Among photosensitizer-only groups, QBX produced a moderate reduction (median 21,800 CFU\/mL), whereas laser irradiation alone (L) exhibited no meaningful antifungal activity, with median counts comparable to the untreated control (49,000 CFU\/mL). Conclusions: QroxB2-mediated aPDT achieved a significant reduction in Candida albicans colony-forming units on implant surfaces. While not as potent as chlorhexidine, this light-activated, biocompatible approach may serve as a complementary tool in managing peri-implant fungal infections. Clinical validation is warranted.<\/jats:p>","DOI":"10.3390\/pharmaceutics17111437","type":"journal-article","created":{"date-parts":[[2025,11,7]],"date-time":"2025-11-07T09:14:45Z","timestamp":1762506885000},"page":"1437","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["In Vitro Antifungal Efficacy of Blue-Light Photodynamic Therapy with Curcumin and Riboflavin Formulation Activated by 450 nm Diode Laser Against Candida albicans Biofilm on Titanium Implants"],"prefix":"10.3390","volume":"17","author":[{"given":"Aleksandra","family":"Warakomska","sequence":"first","affiliation":[{"name":"Department of Periodontal Diseases and Oral Mucosa Diseases, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4013-6688","authenticated-orcid":false,"given":"Ma\u0142gorzata","family":"K\u0119pa","sequence":"additional","affiliation":[{"name":"Department of Microbiology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Jagiello\u0144ska 4, 41-200 Sosnowiec, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-3173-9389","authenticated-orcid":false,"given":"Jakub","family":"Fiegler-Rudol","sequence":"additional","affiliation":[{"name":"Department of Periodontal Diseases and Oral Mucosa Diseases, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Katarzyna","family":"Latusek-Kotyczka","sequence":"additional","affiliation":[{"name":"Department of Periodontal Diseases and Oral Mucosa Diseases, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8732-251X","authenticated-orcid":false,"given":"Dariusz","family":"Skaba","sequence":"additional","affiliation":[{"name":"Department of Periodontal Diseases and Oral Mucosa Diseases, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5673-7413","authenticated-orcid":false,"given":"Rafa\u0142","family":"Wiench","sequence":"additional","affiliation":[{"name":"Department of Periodontal Diseases and Oral Mucosa Diseases, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,11,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"214","DOI":"10.4103\/jehp.jehp_1302_20","article-title":"Dental implant quality registries and databases, A systematic review","volume":"10","author":"Naemi","year":"2021","journal-title":"J. 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