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In vitro Interactions between Streptococcus intermedius and Streptococcus salivarius K12 on a Titanium Cylindrical Surface.


ABSTRACT: Peri-implantitis is a steadily rising disease and is caused by oral bacterial pathogens able to form biofilm on implant surfaces and peri-implant tissues, making antibiotics treatment less effective. The use of commercial probiotics against oral pathogens could serve as an alternative to prevent biofilm formation. Streptococcus intermedius is one of the early colonizers of biofilm formation in dental implants. The aim of this study was to model the interaction between S. intermedius and Streptococcus salivarius strain K12, a probiotic bacterium producing bacteriocins. S. intermedius was co-cultured with S. salivarius K12 in an in vitro model simulating the biofilm formation in a dental implant composed by a titanium cylinder system. Biofilm formation rate was assessed by Real-Time PCR quantification of bacterial count and expression levels of luxS gene, used in response to cell density in the biofilm. Biofilm formation, bacteriocin production, luxS expression patterns were found to be already expressed within the first 12 h. More importantly, S. salivarius K12 was able to counter the biofilm formation in a titanium cylinder under the tested condition. In conclusion, our dental implant model may be useful for exploring probiotic-pathogen interaction to find an alternative to antibiotics for peri-implantitis treatment.

SUBMITTER: Vacca C 

PROVIDER: S-EPMC7765831 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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In vitro Interactions between <i>Streptococcus intermedius</i> and <i>Streptococcus salivarius</i> K12 on a Titanium Cylindrical Surface.

Vacca Carla C   Contu Maria Paola MP   Rossi Cecilia C   Ferrando Maria Laura ML   Blus Cornelio C   Szmukler-Moncler Serge S   Scano Alessandra A   Orrù Germano G  

Pathogens (Basel, Switzerland) 20201220 12


Peri-implantitis is a steadily rising disease and is caused by oral bacterial pathogens able to form biofilm on implant surfaces and peri-implant tissues, making antibiotics treatment less effective. The use of commercial probiotics against oral pathogens could serve as an alternative to prevent biofilm formation. <i>Streptococcus intermedius</i> is one of the early colonizers of biofilm formation in dental implants. The aim of this study was to model the interaction between <i>S. intermedius</i  ...[more]

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