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Li-doped bioglass® 45S5 for potential treatment of prevalent oral diseases

Palza Cordero, Humberto ; Castro Cid, René ; Diaz Dosque, Mario ; Cabello Ibacache, Rodrigo ; Palma Fluxá, Patricia

Journal of dentistry, 2021-02, Vol.105, p.103575, Article 103575 [Periódico revisado por pares]

England: Elsevier Ltd

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Li-doped bioglass® 45S5 for potential treatment of prevalent oral diseases
Autor: Palza Cordero, Humberto ; Castro Cid, René ; Diaz Dosque, Mario ; Cabello Ibacache, Rodrigo ; Palma Fluxá, Patricia
Assuntos: Antibacterial activity ; Antibacterial materials ; Antiinfectives and antibacterials ; Bacteria ; Biocompatibility ; Bioglass ; Biological activity ; Caries ; Ceramics ; Demineralization- remineralization ; Demineralizing ; Dental caries ; Dental enamel ; Dentistry ; Electron microscopy ; Enamel ; Glucose ; Gum disease ; Hardness ; Humans ; Ions ; Nitrates ; Oral diseases ; Pathogens ; Periodontitis ; Physiology ; Remineralization ; Sol-gel processes ; Teeth ; Tooth Remineralization ; Toxicity
É parte de: Journal of dentistry, 2021-02, Vol.105, p.103575, Article 103575
Descrição: •In vitro demineralized teeth were remineralized by bioglass (BG) and Li-doped BG.•The remineralization process by bioglasses partially recovered the microhardness of the demineralized teeth.•Bioglasses produce an alkaline environment that affects bacteria such as S. mutans.•Lithium increased the antibacterial activity of bioglasses against A. actinomycetemcomitans bacteria. Despite the excellent properties of both pure bioglasses (BG) and BG doped with therapeutic ions (such as Li) in hard tissue applications, there is not enough information about their role in the remineralization and bacterial-growth in oral diseases. The aim of this contribution is to evaluate the effect of both pure BG and BG doped with 5-wt% of Li (BGLi) on both the remineralization of in vitro demineralized human-teeth and the antimicrobial behavior against strains from caries and periodontitis. Bioglass® 45S5 (BG) and BGLi were synthesized by the sol-gel method. The remineralization tests were carried out using in vitro demineralized enamel teeth and evaluated by Electron Microscopy (SEM) and Vickers micro-hardness (HV). The antimicrobial behavior of the particles was evaluated against S. mutans, A. actinomycetemcomitans, and P. gingivalis, representing pathogens from caries and periodontitis. Enamel lesion was partially remineralized when both bioglasses (BG and BGLi) were applied on its surface with micro-hardness recoveries around 45 %. They further inhibited the growth of S. mutans and P. gingivalis, at 50 and 200 mg/mL, respectively. BGLi presented a higher toxicity against A. actinomycetemcomitans than BG, with inhibition concentrations of 20 mg/mL and 100 mg/mL, respectively. Bioglasses could be used in the treatment of two of the most prevalent oral diseases: caries and periodontitis, promoting the remineralization of the teeth and killing the main pathogens. The presence of Li did not affect the bioactivity of the bioglass and improved the antibacterial effect over A. actinomycetemcomitans strain.
Editor: England: Elsevier Ltd
Idioma: Inglês

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Li-doped bioglass® 45S5 for potential treatment of prevalent oral diseases

Palza Cordero, Humberto ; Castro Cid, René ; Diaz Dosque, Mario ; Cabello Ibacache, Rodrigo ; Palma Fluxá, Patricia

England: Elsevier Ltd

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