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VOLUME 21 , ISSUE 5 ( May, 2020 ) > List of Articles


Comparative Evaluation of the Antimicrobial Effects of Different Mouthrinses against Oral Pathogens: An In Vitro Study1

Eman Abu-obaid, Fouad Salama, Ala’a Abu-obaid, Fars Alanazi, Mounir Salem, Sayed Auda, Thamer Al Khadra

Keywords : Chlorhexidine, Lactobacillus, Microbiology, Mouthrinses, Streptococcus mutans

Citation Information : Abu-obaid E, Salama F, Abu-obaid A, Alanazi F, Salem M, Auda S, Khadra TA. Comparative Evaluation of the Antimicrobial Effects of Different Mouthrinses against Oral Pathogens: An In Vitro Study1. J Contemp Dent Pract 2020; 21 (5):500-508.

DOI: 10.5005/jp-journals-10024-2832

License: CC BY-NC 4.0

Published Online: 25-12-2013

Copyright Statement:  Copyright © 2020; The Author(s).


Aim: To assess the antimicrobial effects of natural and semi-natural mouthrinses on isolates of Streptococcus mutans, Lactobacillus fermentum, and Lactobacillus casei obtained from the saliva samples and their reference strains. Materials and methods: Natural and semi-natural mouthrinses included in this study were herbal mix mouthrinse, cranberry mouthrinse, chlorhexidine digluconate mouthrinse, cranberry extract mixed with chlorhexidine digluconate mouthrinse, chlorhexidine digluconate mouthrinse with alcohol (positive control), and distilled water (negative control). The microbiological examination tests were minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), and zone of inhibition test for the saliva isolates of S. mutans, L. fermentum, and L. casei while zone of inhibition test only for their reference strains. Result: Compared with distilled water, herbal mix, cranberry, cranberry mixed with chlorhexidine, chlorhexidine with alcohol (+), and chlorhexidine mouthrinses were associated with a significant increase of the zone of inhibition 34.354, 34.255, 34.219, 10.801, and 9.386, respectively. Both MIC and MBC were significantly higher in the cranberry mixed with chlorhexidine than in chlorhexidine with alcohol. The MIC and MBC of mouthrinses were significantly lower in the S. mutans and L. fermentum than in L. casei. Conclusion: Herbal mix and cranberry mouthrinses could be effective natural alternative to chlorhexidine mouthrinse with or without alcohol in improving oral health. Clinical significance: Different mouthrinses proposed in this study showed antimicrobial effects against the tested oral pathogens, and possibly the tested mouthrinses will lead for future formulation of natural or semi-natural pharmaceutical mouthrinses.

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