Antibacterial activity of two adhesive systems using various microbiological methods.

Purpose: To compare the antibacterial activities of two dentin bonding systems (DBS), Clearfil Protect Bond and Xeno III, by agar well, paper and dentin disks, and a cavity tooth model.

Materials And Methods: For the well technique, the test materials were filled in the agar wells inoculated with Streptococcus mutans (ATCC 25175). The paper disks were embedded in adhesives and placed on the seeded agar plates for the second technique.

Antimicrobial substantivity of cavity disinfectants.

This study involved a comparative examination of different disinfectant solutions and their antimicrobial substantivity against Streptococcus mutans, Lactobacillus acidophilus, and Candida albicans. All of the disinfectants containing chlorhexidine and benzalkonium chloride demonstrated substantive antibacterial activity. Chlorhexidine-based solutions displayed the longest and most effective antimicrobial activity.