Adherence ofStreptococcus mutans to an E-glass fiber-reinforced composite and conventional restorative materials used in prosthetic dentistry

Abstract

The adherence of Streptococcus mutans to E-glass used in fiber-reinforced composites, denture base polymer, and four other restoratives was investigated. The materials were studied with and without a parotid saliva and serum pellicle. Specimens of the studied materials (E-glass, denture base polymer, titanium, cobalt-chromium alloy, gold alloy, and grained feldspar ceramic) were incubated in a suspension of S. mutans, allowing initial adhesion to occur. The degree of bacterial adhesion was studied using scanning electron microscopy (SEM). The studied uncoated materials showed rather similar adhesion of S. mutans. Saliva coating resulted in a decrease of adherence to all materials except glass. With a saliva pellicle E-glass showed the strongest ability to bind S. mutans, and it differed significantly from the other studied materials. Serum coating markedly decreased adhesion to all materials, and only minor differences among the studied materials were observed. The results of this study suggest that the studied restoratives are rather similar with respect to S. mutans adhesion and that a saliva pellicle may promote adhesion of S. mutans to glass fibers.

Wear and Corrosion Interactions on Titanium in Oral Environment: Literature Review

“…[39,41,70]. Additionally, it can occur a binding between and glycoproteins present on mucin which is part of the acquired pellicle [42,68,70,71]. Moreover, these bacteria are able to produce hydrated extracellular polysaccharides (EPS), resulting from sucrose degradation by enzymes known as glycosyltransferase (GTF), as shown in Fig.…”

Oral streptococci growth on aging and non-aging esthetic restorations after radiotherapy

“…Thus, the materials interact with the cells through the absorbed protein layer. The composition and structure of this protein layer plays a critical role in determining subsequent cell behavior (2,3,18).…”

“…The adherence of bacteria to solid surfaces is thought to involve non-specific processes mediated by physicochemical interactions, such as hydrophobic interaction, electrostatic interaction and hydrodynamic forces (3). Bacterial accumulation in dental biofilms is highly dependent on the characteristics of the material surface.…”

Bacterial interactions with biomaterials metallic surfaces

“…Data from the present study showed that S. mutans adhesion and viable counts in the biofilm are related, according with Steinberg and Eyal 24 . Several studies have shown that S. mutans has been used in tests on bacterial adhesion because it is the main organism in the process of dental caries and, in dental biofilm formation, in which several bacterial species in the human oral cavity are involved 25,26,27 . The present investigation evaluate the adhesion of S. mutans on smooth and rough surfaces, after immersion in a liquid culture inoculated with S. mutans and a pH 7.0, under this condition both surfaces permitted the bacterial adhesion in a medium proper for bacterial growth.…”