Adherence of Streptococcus mutans to uncoated and saliva-coated glass-ceramics and composites
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Abstract
This study sought to investigate the surface roughness and the adherence of Streptococcus mutans (in the presence and absence of saliva) to ceramics and composites. The early dental biofilms formed in situ on the materials were illustrated, using scanning electron microscopy (SEM). Feldspathic and leucite/feldspathic ceramics and microhybrid and microfilled composites were evaluated. Human dental enamel was used as the control. Standardized specimens of the materials were produced and surface roughness was analyzed. The adhesion tests were carried out in 24-well plates and colony forming units (CFU/mL) were evaluated. Values of roughness (μm) and adherence (CFU/mL) were analyzed statistically. Of all the surfaces tested, enamel was the roughest. Leucite/feldspathic ceramics were rougher than the feldspathic ceramic, while composites were similar statistically. Enamel offered the highest level of adherence to uncoated and saliva-coated specimens, while the leucite/feldspathic ceramic demonstrated greater adherence than the feldspathic ceramic and the composites were similar statically. The rougher restorative materials increased the adherence of S, mutans on the material surfaces.
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aluminum silicate , biomaterial , biomedical and dental materials , glass , IPS Empress ceramic , IPS-Empress ceramic , leucite , potassium derivative , resin , Sinfony , bacterial count , bacterium adherence , biofilm , ceramics , chemistry , comparative study , enamel , feldspar , human , materials testing , microbiology , physiology , saliva , scanning electron microscopy , Streptococcus mutans , surface property , tooth brushing , tooth prosthesis , Aluminum Silicates , Bacterial Adhesion , Biofilms , Ceramics , Coated Materials, Biocompatible , Colony Count, Microbial , Composite Resins , Dental Enamel , Dental Materials , Dental Polishing , Dental Porcelain , Glass , Humans , Materials Testing , Microscopy, Electron, Scanning , Potassium Compounds , Saliva , Surface Properties
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English
Citation
General Dentistry, v. 56, n. 7, p. 740-747, 2008.
