Journal
INTERNATIONAL JOURNAL OF PHARMACEUTICS
Volume 631, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.ijpharm.2022.122470
Keywords
Antimicrobial; Polymeric resins; Drug delivery systems; Denture stomatitis
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The high recurrence rate of common denture stomatitis after antifungal treatment is still a concern. Impregnating denture materials with antimicrobials for local delivery is a strategy to improve treatment efficacy. In this study, three hard autopolymerizing reline acrylic resins loaded with different percentages of chlorhexidine (CHX) were developed and characterized. Probase Cold loaded with 5 wt% CHX showed the most promising results in terms of antimicrobial activity and lack of serious detrimental properties.
The high recurrence rate of common denture stomatitis after antifungal treatment is still concerning. This condition is caused by low patient compliance and incomplete local elimination of the main etiological factor - Candida albicans, often associated with other microorganisms, such as Streptococcus species. Impregnating den -ture materials with antimicrobials for local delivery is a strategy that can overcome the side effects and improve the efficacy of conventional treatments (topical and/or systemic). In this work, we describe the development of three hard autopolymerizing reline acrylic resins (Kooliner, Ufi Gel Hard, and Probase Cold) loaded with different percentages of chlorhexidine (CHX). The novel formulations were characterized based on their anti-microbial activity, mechanical, morphological and surface properties, in-vitro drug release profiles, and cyto-toxicity. The addition of CHX in all resins did not change their chemical and mechanical structure. Among all the tested formulations, Probase Cold loaded with 5 wt% CHX showed the most promising results in terms of antimicrobial activity and lack of serious detrimental mechanical, morphological, surface, and biological properties.
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