Effects of sodium hexametaphosphate microparticles or nanoparticles on the growth of saliva-derived microcosm biofilms

Objectives This study evaluated the effects of sodium hexametaphosphate microparticles (HMPmicro) or nanoparticles (HMPnano) on the growth of saliva-derived microcosm biofilms Materials and methods Saliva-derived biofilms were formed on glass coverslips for 24 h. Thereafter, Streptococcus mutans (C1...

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Bibliographic Details
Published in:Clinical oral investigations 2022-09, Vol.26 (9), p.5733-5740
Main Authors: Sampaio, Caio, Deng, Dongmei, Exterkate, Rob, Zen, Igor, Hosida, Thayse Yumi, Monteiro, Douglas Roberto, Delbem, Alberto Carlos Botazzo, Pessan, Juliano Pelim
Format: Article
Language:English
Subjects:
Acid production
Bacitracin
Biofilms
Cytotoxicity
Dentistry
Kruskal-Wallis test
Lactic acid
Lymphocytes T
Medicine
Microparticles
Nanoparticles
Original Article
Saliva
Streptococcus infections
Sucrose
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Summary:Objectives This study evaluated the effects of sodium hexametaphosphate microparticles (HMPmicro) or nanoparticles (HMPnano) on the growth of saliva-derived microcosm biofilms Materials and methods Saliva-derived biofilms were formed on glass coverslips for 24 h. Thereafter, Streptococcus mutans (C180-2) was incorporated or not into the biofilms. From that time point onwards, solutions containing 0.2% HMPmicro or HMPnano, combined or not with 220 ppm F, were constantly present in the culture medium. In addition, 220 ppm F alone (220F) and McBain medium without any compound were also tested as positive and negative controls (CTL), respectively. After 96 h, the biofilms were plated on anaerobic blood agar or sucrose agar bacitracin for total and S. mutans CFU-counting, respectively. Biofilms’ lactic acid production was analysed spectrophotometrically. Data were submitted to ANOVA or Kruskal-Wallis’ tests, followed by Student-Newman-Keuls’ test ( p
ISSN:1436-3771
1432-6981
1436-3771
DOI:10.1007/s00784-022-04529-3