title: Adherence of Streptococcus mutans to uncoated and saliva-coated glass-ceramics and composites.
abstract: This study sought to investigate the surface roughness and the S ence 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 ascopy (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 miaterials were produced and surface roughness was analyzed. The dhesion tests were carried out in 24-well plates and colony forming units (CFU/mL) were evaluated. Values of roughness (microm) ,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.
authors.affiliation: Department of Stomatology, Federal University of Santa Maria, SM, Brazil.
authors.forename: Karla Zanini
authors.initials: KZ
authors.lastname: Kantorski
authors.forename: Roberto
authors.initials: R
authors.lastname: Scotti
authors.forename: Luiz Felipe
authors.initials: LF
authors.lastname: Valandro
authors.forename: Marco Antonio
authors.initials: MA
authors.lastname: Bottino
authors.forename: Cristiane Yumi
authors.initials: CY
authors.lastname: Koga-Ito
authors.forename: Antonio Olavo
authors.initials: AO
authors.lastname: Jorge
mesh_terms: D000538:Aluminum Silicates / Q000737:chemistry; D001422:Bacterial Adhesion / Q000502:physiology*; D018441:Biofilms; D002516:Ceramics / Q000737:chemistry*; D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D015169:Colony Count, Microbial; D003188:Composite Resins / Q000737:chemistry*; D003743:Dental Enamel / Q000382:microbiology; D003764:Dental Materials / Q000737:chemistry*; D003775:Dental Polishing; D003776:Dental Porcelain / Q000737:chemistry; D005898:Glass / Q000737:chemistry*; D006801:Humans; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D017680:Potassium Compounds / Q000737:chemistry; D012463:Saliva / Q000502:physiology*; D013295:Streptococcus mutans / Q000502:physiology*; D013499:Surface Properties
chemical_list: D000538:Aluminum Silicates; D020099:Coated Materials, Biocompatible; D003188:Composite Resins; D003764:Dental Materials; C075815:IPS-Empress ceramic; D017680:Potassium Compounds; C477352:Sinfony composite resin; D003776:Dental Porcelain; C016447:feldspar; C078519:leucite