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Antibacterial efficacy of silver diamine fluoride as a root canal irrigant.

Al-Madi, Ebtissam M; Al-Jamie, Manar A; Al-Owaid, Noura M; Almohaimede, Amal A; Al-Owid, Albandary M.
Clin Exp Dent Res; 5(5): 551-556, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31687190

Objectives:

Conventional disinfectants and medicaments have not been able to achieve and maintain sterilization of root canals. The purpose of the study was to evaluate the antibacterial efficacy of 3.8% silver diamine fluoride (SDF) in comparison with 2% chlorhexidine (CHX) against Enterococcus faecalis biofilm. Materials and

methods:

Extracted human teeth were used to make 70 dentin discs that were then inoculated with E. faecalis to generate a 3-week-old biofilm model. The discs were subjected to treatment with 3.8% SDF, 2% CHX, sodium hypochlorite (NaOCl), or saline for 10 min. After exposure, the dentin discs were examined with a confocal laser scanning microscope to verify the percentage of live versus dead cells within the biofilm. Univariate one-way analysis of variance and Tukey-honestly significant difference post hoc analysis (p < .05) were performed to detect significant differences. Results and

conclusion:

The NaOCl group showed the greatest percentage of dead cells (62.26%) among all groups (p < .05). The SDF group showed a significantly higher percentage of dead cells (57.39%) than the 2% CHX and saline groups (p < .05). SDF possessed higher antimicrobial activity than 2% CHX against E. faecalis biofilms.