African Journal of

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12487

Short Communication

Efficacy of some antibacterial agents against Streptococcus mutans associated with tooth decay

Ihsan Edan Alsaimary
  Department of Microbiology, College of Medicine, University of Basrah, Iraq
Email: [email protected]

  •  Accepted: 28 October 2008
  •  Published: 01 November 2012



Isolation of Streptococcus mutans was achieved from 79.3% of total positive culture of tooth decay cases. Testing of various extracts of Punica grantum (pomegranate), red and white fruit juice, fruit crust and three tooth pastes (Signal-2, Close-Up and Sinan) with comparison to standard antibiotics were carried out in this study. The highest diameter of inhibition zone was recorded for 1000 mcg/ml of fruit crust (26 mm). The MICs for pomegranate extracts are between 80 - 400 mg/ml, and 200 - 500 mg/ml for tooth pastes. The effects of pomegranate extracts are between the limits of standard antibiotics.


Key words: Streptococcus mutans, Punica grantum, tooth decay, pomegranate extracts, fruit crust