The present invention discloses different specific bacterial strains isolated from individuals without caries which are characterized in that they present inhibitory activity against cariogenic organisms. The invention also discloses a process for isolating said strains, as well as bioactive peptides, such as anti-microbial peptides of human and bacterial origin, which also show anti-cariogenic activity. Moreover, the present invention also discloses pharmaceutical and/or probiotic/prebiotic compositions, functional foods, mouthwashes, toothpaste, chewing gum, etc., that comprise at least one of the strains and/or at least one of the bioactive peptides described in the invention, or a combination thereof, which are useful in the treatment and/or prevention of infectious diseases of the buccal cavity, preferably caries.

Described is a method of forming a mineralized material by co-culturing epithelial cell, such as ameloblast, and mesenchymal cell, such as osteoblast or odontoblast, in a mineral-stimulating medium. Also described is a matrix seeded with epithelial cells and mesenchymal cells and infused with a mineral-stimulating medium capable of forming a mineralized material in the matrix. Methods of manufacturing such compositions and methods of treating mineralization-related conditions are also described.

Described is a method of forming a mineralized material by co-culturing epithelial cell, such as ameloblast, and mesenchymal cell, such as osteoblast or odontoblast, in a mineral-stimulating medium. Also described is a matrix seeded with epithelial cells and mesenchymal cells and infused with a mineral-stimulating medium capable of forming a mineralized material in the matrix. Methods of manufacturing such compositions and methods of treating mineralization-related conditions are also described.

The present disclosure discloses a strain of Lactobacillus fermentum capable of preventing and/or treating periodontitis and an application thereof, belonging to the field of microbiology technology. The present disclosure has screened to obtain a strain of L. fermentum CCFM1139. The L. fermentum CCFM1139 can alleviate periodontitis by inhibiting formation of mixed bacterial biofilms of Porphyromonas gingivalis, Prevotella intermedia and Fusobacterium nucleatum, thereby reducing the amount of biofilm by 52.45%, and can reduce the content of TNF- from 131.37 pg/mL to 83.31 pg/mL and IL-8 from 147.70 pg/mL to 121.12 pg/mL in a periodontitis cell model, reduce colonization of the P. gingivalis and the F. nucleatum in the oral cavity by 1-2 orders of magnitude, and reduce the amount of the alveolar bone resorption from 1838.0 m to 805.7 m.

The present disclosure discloses a strain of Lactobacillus fermentum capable of preventing and/or treating periodontitis and an application thereof, belonging to the field of microbiology technology. The present disclosure has screened to obtain a strain of L. fermentum CCFM1139. The L. fermentum CCFM1139 can alleviate periodontitis by inhibiting formation of mixed bacterial biofilms of Porphyromonas gingivalis, Prevotella intermedia and Fusobacterium nucleatum, thereby reducing the amount of biofilm by 52.45%, and can reduce the content of TNF- from 131.37 pg/mL to 83.31 pg/mL and IL-8 from 147.70 pg/mL to 121.12 pg/mL in a periodontitis cell model, reduce colonization of the P. gingivalis and the F. nucleatum in the oral cavity by 1-2 orders of magnitude, and reduce the amount of the alveolar bone resorption from 1838.0 m to 805.7 m.

The present invention relates to a method for a chewing-gum based mitigation of virus-related disease spread and pre-immunity activation based on disruption of syntrophic methanogenic processes in the oral-, shared oronasal and orotracheal microbiome. The invention provides a chewing gum composition comprising a methylotrophic yeast, preferably Komagataella phaffii; a plant lectin, preferably phytohaemagglutinin; and/or iron particles, preferably zero-valent iron particles.

The present invention relates to a method for a chewing-gum based mitigation of virus-related disease spread and pre-immunity activation based on disruption of syntrophic methanogenic processes in the oral-, shared oronasal and orotracheal microbiome. The invention provides a chewing gum composition comprising a methylotrophic yeast, preferably Komagataella phaffii; a plant lectin, preferably phytohaemagglutinin; and/or iron particles, preferably zero-valent iron particles.