ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 63, (3) 297 - 304 (2019)

Dimkov Aleksandar 1, Gjorgievska Elizabeta 1, Nicholson John W. 2
1 Department of Paediatric and Preventive Dentistry, Faculty of Dental Medicine, University Ss Cyril and Methodius, Skopje, Macedonia
2 Bluefield Centre for Biomaterials, 67-68 Hatton Garden, London EC1N 8JY, UK and Dental Materials Science Unit, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 4NS, UK

Keywords: Chloride ions, GIC, Antimicrobials, Cetylpyridinium chloride, benzalkonium chloride

The objective of this study was to determining the level of released chloride ions from conventional glass-ionomer cements incorporated with two different types of antimicrobial agents - cetylpyridinium chloride and benzalkonium chloride, as well as to see the influence of incorporated antimicrobial agents on the process of chloride ions releasing. Two conventional glass-ionomer cements ChemFlex and Fuji IX were incorporated with a different percentage of the antimicrobial agents. The specimens were prepared according to the British Standards Institution Specifications for Dental Glass Ionomer Cements. 84 samples in total (4 mm × 6 mm) were prepared - by six specimens of the conventional glass-ionomer cements Fuji IX and ChemFlex with various concentrations of antimicrobial agents added - 1%, 2% and 3%, i.e. six samples for each antimicrobial agent and each concentration level, as well as, by other six samples of the same cements without any antimicrobial agents, to be used as a control group. The measurements were performed at 14 successive time intervals started in zero time and finished after seven days. The results obtained speak of a continual release of chloride ions from both analysed glass-ionomer cements with the addition of antimicrobial compounds, as well as with no antimicrobial compound incorporated.

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doi: 10.13168/cs.2019.0024
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