Comparison of the antimicrobial effects of three different solutions containing propolis extract, black mulberry extract and chlorhexidine gluconate on Streptococus mutans and Enterococcus faecalis

In this thesis study, it is aimed to investigate the antimicrobial effects of propolis extract, black mulberry extract and chlorhexidine gluconate on Streptococcus mutans and Enterococcus faecalis. For this purpose, extracts of propolis and Morus nigra were prepared using the ethanol and methanol method. Chlorobene, methanolic Morus nigra extract and two different ethanolic propolis (commercial propolis and local Pervari propolis) extracts were absorbed into blank papers and their antimicrobial effects on Streptococcus mutans and Enterococcus faecalis were determined by the disk diffusion method. In the study, it was determined that Chloroben showed a rapid but limited antimicrobial effect, Morus nigra was ineffective, and propolis extracts showed varying effects depending on the strains. As a result, it was seen that the antimicrobial effect of propolis extracts varied depending on the type of propolis, chloroben had a strong antimicrobial effect, and morus nigra had no antimicrobial effect. It was concluded that further studies are needed to understand the effects of ingredients obtained from natural sources on microorganisms in more detail and to evaluate how these findings can be reflected in clinical practices, and to aim to develop an effective and reliable fight strategy against bacteria.