Your browser doesn't support javascript.
loading
Adherence of Streptococus mutans to the surface of direct-use composites submitted to different polishing techniques
Freitas, Amanda Beatriz Dahdah Aniceto de; Barros, Letizia Monteiro; Fiorini, João Evangelista; Gomes, Priscila Nogueira; Barreto, Tatiana de Pádua; Swerts, Mário Sérgio Oliveira.
Afiliação
  • Freitas, Amanda Beatriz Dahdah Aniceto de; UNIFENAS. Alfenas. BR
  • Barros, Letizia Monteiro; Universidade de Alfenas. BR
  • Fiorini, João Evangelista; Universidade de Alfenas. BR
  • Gomes, Priscila Nogueira; s.af
  • Barreto, Tatiana de Pádua; s.af
  • Swerts, Mário Sérgio Oliveira; Universidade de Alfenas. Faculdade de Odontologia. BR
RPG rev. pos-grad ; 14(3): 199-204, jul.-set. 2007. tab, graf
Article em En | LILACS, BBO | ID: lil-529451
Biblioteca responsável: BR501.1
ABSTRACT
The purpose of this study was to evaluate the adherence of Streptococcus mutans to the surface of direct-use composites submitted to different polishing techniques. Cylindrical specimes were made of resins Filtek Z250®; Filtek A110®; Filtek P60® and Filtek Supreme®. The samples were grouped in accordance with the surface treatment poliester matrix (without polishing); brush technique (without polishing); Sof-Lex® disks; fine grain and extra-fine grain diamond points; carbide burs with 12 and 30 blades; diamond points associated with silicone points (Enhance® system); and multibladed burs associated with silicon points. In a sterile laminar flux apparatus the samles were disinfected and placed in Petri dishes where BHI sucrose broth was added and S. mutans ATCC 25175 was inoculated in a such a manner that the study surface was turned upwards (incubation at 35+ - 2°C). After 24 and 72 hours, three previously calibrated examiners used a stereomicroscope to classify the samples with regard to the presence and thickness of the pellicle and quantity of colonies. The data were statistically analyzed nonparametric tests of Mann Whitney and Student-New-man-Keuls (p<0,05). The microhybrid resin exhibited the same indexes of adherence when compared to both the microparticle and the nanoparticle, and lower adherence than packable composite.Among the polishing systems, the most effective were the multibladed burs and diamond points used before the silicon points. For the obtainment of a smooth surface by means of polishing, it is necessary to inhibit the impregnation of bacteria on the composite resin restorations.
Assuntos
Palavras-chave
Buscar no Google
Coleções: 01-internacional Base de dados: BBO / LILACS Assunto principal: Streptococcus mutans / Aderência Bacteriana / Resinas Compostas Tipo de estudo: Evaluation_studies Idioma: En Revista: RPG rev. pos-grad Ano de publicação: 2007 Tipo de documento: Article País de afiliação: Brasil
Buscar no Google
Coleções: 01-internacional Base de dados: BBO / LILACS Assunto principal: Streptococcus mutans / Aderência Bacteriana / Resinas Compostas Tipo de estudo: Evaluation_studies Idioma: En Revista: RPG rev. pos-grad Ano de publicação: 2007 Tipo de documento: Article País de afiliação: Brasil