Edition V02N02 | Year 2012 | Editorial Original Article | Pages 53 to 58
Objective: To evaluate the antimicrobial activity of 2% chlorhexidine gel, copaiba oil, propolis extract and calcium hydroxide associated to propylene glycol on Enterococcus faecalis. Methods: Fifty single-rooted human teeth were prepared until K-file #50 and distributed into groups according to the intracanal substances. The positive control group was only propylene glycol. Subsequently, 100µL of microorganism broth was inoculated into the roots, except in the negative control group. Then the roots were placed in individual test tubes immersed in BHI and put into incubator at 37° C for 48 hours. After the turbidity of the medium, the roots were irrigated with sodium thiosulfate, filled with one of the test substances and immersed in BHI for 7 days at 37° C. Thereafter, the drugs were removed from the roots with help of K-files and abundant irrigation with sodium thiosulfate. The roots were immersed in BHI for 24 hours. After this, the tubes were analyzed by single trained examiner to the categorization of the culture medium turbidity. Conclusion: According to this methodology, it was possible to conclude that none substance was effective against Enterocossus faecalis .
Piovesani JF, Semenoff-Segundo A, Pedro FLM, Borges AH, Neves ANP, Mamede Neto I, Semenoff TADV. Antibacterial capacity of different intracanal medications on Enterococcus faecalis. Dental Press Endod. 2012 Apr-June;2(2):53-8.