Synergistic growth effect among bacteria recovered from root canal infections

Revista de microbiologia

Ribeiro Sobrinho, Antônio Paulino¹  Moreira Júnior, Gil² 

[1] Universidade Federal de Minas Gerais, Belo Horizonte, Brasil;Universidade de Itaúna, Itaúna, Brasil

关键词: Root canal;    infection;    bacterial relationships.;   

DOI  :  10.1590/S1517-83822011000300017

学科分类：农业科学（综合）

来源: Sociedade Brasileira de Microbiologia / Brazilian Society for Microbiology

【 摘 要 】

The objective of this study was to determine the ecological relationships between bacterial species that colonize infected root canals. Root canal bacteria recovered from one patient with pulp canal necrosis were evaluated in vitro for synergistic and antagonistic activities determined by mono and co-culture growth kinetics and the production of bacteriocin-like substances using the double layer diffusion method. Peptostreptococcus prevotii triggered a significant increase of Fusobacterium nucleatum growth, while the former bacteria did not affect the growth of P. prevotii. The bacterial species did not produce antagonism activity against itself or against any of the other two species. Despite many studies have demonstrated the capability of root canal microorganisms to produce antagonistic substances, these in vitro experimental tests show the synergistic effect of P. prevotii on the growth of F. nucleatum.

【 授权许可】

CC BY-NC