OBJECTIVES: To assess in vitro the antimicrobial action of intracanal medicaments in the external root surface, with or without of cementum. METHODS: After the placement of intracanal medicaments, the coronal and apical openings were sealed. The antimicrobial action of 2% chlorhexidine gel (2%CHX); calcium hydroxide+2% chlorhexidine gel (CH+2%CHX); calcium hydroxide+2% chlorhexidine gel+zinc oxide (CH+2%CHX+ZnO); calcium hydroxide+saline solution (CH+SS) was evaluated against Enterococcus faecalis, Candida albicans, Actinomyces viscosus and Porphyromonas gingivalis. The samples were placed over the agar, and the zones of inhibition of microbial growth were measured after the incubation period. RESULTS: The antimicrobial effects of the medicaments could be ranked from strongest to weakest as follows: 2%CHX, CH+2%CHX, CH+2%CHX+ZnO, CH+SS. No differences among groups were verified in the presence or absence of cementum. CONCLUSIONS: 2%CHX containing medicaments diffused into the dentin and reached the outer surface, exerting antimicrobial action.
OBJECTIVES: To assess in vitro the antimicrobial action of intracanal medicaments in the external root surface, with or without of cementum. METHODS: After the placement of intracanal medicaments, the coronal and apical openings were sealed. The antimicrobial action of 2% chlorhexidine gel (2%CHX); calcium hydroxide+2% chlorhexidine gel (CH+2%CHX); calcium hydroxide+2% chlorhexidine gel+zinc oxide (CH+2%CHX+ZnO); calcium hydroxide+saline solution (CH+SS) was evaluated against Enterococcus faecalis, Candida albicans, Actinomyces viscosus and Porphyromonas gingivalis. The samples were placed over the agar, and the zones of inhibition of microbial growth were measured after the incubation period. RESULTS: The antimicrobial effects of the medicaments could be ranked from strongest to weakest as follows: 2%CHX, CH+2%CHX, CH+2%CHX+ZnO, CH+SS. No differences among groups were verified in the presence or absence of cementum. CONCLUSIONS: 2%CHX containing medicaments diffused into the dentin and reached the outer surface, exerting antimicrobial action.
Authors: Markus Zaruba; Dan-K Rechenberg; Thomas Thurnheer; Thomas Attin; Patrick R Schmidlin Journal: Clin Oral Investig Date: 2015-09-01 Impact factor: 3.573
Authors: Adriana de Jesus Soares; Juliana Yuri Nagata; Renato Corrêa Viana Casarin; José Flávio Affonso de Almeida; Brenda Paula Figueiredo de Almeida Gomes; Alexandre Augusto Zaia; Caio Cezar Randi Ferraz; Francisco José de Souza-Filho Journal: Iran Endod J Date: 2012-08-01
Authors: Cláudia Fernandes de Magalhães Silveira; Rodrigo Sanches Cunha; Carlos Eduardo Fontana; Alexandre Sigrist de Martin; Brenda Paula Figueiredo de Almeida Gomes; Rogério Heládio Lopes Motta; Carlos Eduardo da Silveira Bueno Journal: Eur J Dent Date: 2011-01