Biodentine Inhibits the Initial Microbial Adhesion of Oral Microbiota In Vivo.

Al-Ahmad, Ali; Haendel, Michael; Altenburger, Markus Joerg; Karygianni, Lamprini; Hellwig, Elmar; Wrbas, Karl Thomas; Vach, Kirstin; Tennert, Christian (2022). Biodentine Inhibits the Initial Microbial Adhesion of Oral Microbiota In Vivo. Antibiotics, 12(1) MDPI 10.3390/antibiotics12010004

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This study aimed to evaluate the in vivo initial microbial adhesion of oral microorganisms on the biomaterial Biodentine compared to MTA and AH Plus. Cylindrical samples of the materials were prepared, and dentin slabs served as a control. An individual intraoral lower jaw splint served as a carrier for the samples and was worn by six volunteers. The specimens were worn for 120 min. Adherent bacteria were quantified by determining the colony-forming units (CFUs), while the visualization and quantification of total adherent microorganisms were facilitated by using DAPI and live/dead staining combined with fluorescence microscopy. Bovine dentin had a significantly higher number of aerobic CFUs compared to Biodentine (p = 0.017) and MTA (p = 0.013). The lowest amounts of DAPI-stained adherent microorganisms were quantified for Biodentine (15% ± 9%) and the control (18% ± 9%), while MTA showed the highest counts of initially adherent microorganisms (38% ± 10%). Significant differences were found for MTA and Biodentine (p = 0.004) as well as for MTA and the control (p = 0.021) and for AH Plus and the control (p = 0.025). Biodentine inhibited microbial adherence, thereby yielding an antimicrobial effectivity similar to that of MTA.

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