ArticleInternational dental journal2024
The Effect of Bovine Trypsin on the Adhesion and pH of Dental Plaque Biofilms: An In Vitro Study.
Article in International dental journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveThe aim of this study was to investigate the effect of bovine trypsin on the adhesion and pH of dental plaque biofilms.
methodsA multispecies dental plaque biofilm model and a single-species dental plaque biofilm model were established in vitro. Three groups were tested: (1) blank control group (aseptic ultrapure water); (2) negative control group (1M Tris-HCl buffer, pH = 7.4); and (3) experimental group (bovine trypsin). Adhesion ability was measured using an automatic microplate reader and visualised by confocal laser scanning microscopy (CLSM). The pH was measured using a pH meter. The expression of gtfB, gtfC, and gtfD was analysed using quantitative real-time polymerase chain reaction.
resultsAdhesion ability in the experimental group was significantly lower than that in the blank group and the negative control group (P < .05); readhesion ability in the experimental group was inhibited for a certain period of time (24-hour multispecies biofilms were inhibited from 4 to 8 hours, and the 48- and 72-hour multispecies biofilms were inhibited from 2 to 6 hours; P < .05). The decrease in pH was inhibited for a certain period of time (24-hour multispecies biofilms were inhibited from 2 to 8 hours, and the 48- and 72-hour multispecies biofilms were inhibited from 1 to 8 hours; P < .05). Expression levels of gtfB, gtfC, gtfD, and ldh in the experimental group were significantly lower than those in the blank group (P < .05).
conclusionsBacterial adhesion, and readhesion, decreasd pH, and expression of adhesion- and acid-related genes by Streptococcus mutans in biofilms could be reduced by bovine trypsin for a certain period of time.
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