Please use this identifier to cite or link to this item:
Type: Artigo de periódico
Title: In vitro bacterial plaque suppression and recolonization by S-mutans and S-sobrinus
Author: Pereira, CV
Pereira, LJ
Goncalves, RB
Hofling, JF
Abstract: The in vitro study of the interactions between S. mutans and S. sobrinus is important to determine the role of these microorganisms in the formation of biofilms on dental structures and their potential to induce carious lesions. The objective of this research was to study the suppression of bacterial plaque formation and its recolonization by rifampycin-resistant S. mutans and streptomycin-resistant S. sobrinus. To study the competitive relationship between these species, previously standardized strains were incubated in media containing different fermentable carbohydrates. At determined time intervals, samples were collected from mixed cultures of S. mutans and S. sobrinus, diluted and plated on BHI-agar containing rifampycin or streptomycin to determine the number of viable cells of each species by counting colony-forming units. In order to study the bacterial colonization process and in vitro recolonization of bacterial plaque, three experiments were performed: I-co-cultivation of S. mutans and S. sobrinus; II-inoculation of bacterial plaque pre formed by S. sobrinus with S. mutans; and III-bacterial plaque pre formed by S. mutans dispersed and plated on BHI-agar containing streptomycin or rifampicin to determine the number of viable cells for each species. The results indicated a predominance of S. mutans in relation to S. sobrinus, demonstrating the capacity of S. mutans to inhibit plaque formation by S. sobrinus and recolonize the surfaces.
Subject: Streptococcus mutans
Streptococcus sobrinus
Country: Brasil
Editor: Soc Brasileira Microbiologia
Citation: Brazilian Journal Of Microbiology. Soc Brasileira Microbiologia, v. 37, n. 1, n. 20, n. 25, 2006.
Rights: aberto
Identifier DOI: 10.1590/S1517-83822006000100004
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
WOS000238644900004.pdf388.89 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.