مقايسه اثرات ضدميكروبي عصاره هاي ده گونه گياهي با دهانشويه كلرهگزيدين بر سه نوع ميكروارگانيسم دهان در شرايط آزمايشگاهي

Introduction: From many times ago, herbal extracts have been used for curing diseases especially infectious ones. In this study antimicrobial effects of ten herbal extracts were evaluated on three different oral pathogens including: Actinobacillus actinomycetem comitcans (Ac), Streptococcus mutans and Candidia alb icons. Methods: The herbal extracts used were: Thymus vulgaris, Syzygium aromaticum, Lavandula angustifnlia, Punica granatum, Rosmarinus offacinalis, Herate umpersicum, Punica granatum (flower), Queryues infectoria, Terminalia chebula, and Melissa officinalis. Extracts with concentration of oil for the hole technique and disks containing 2 mg of extract were prepared and antimicrobial effectets were compared with chlohexidine. Bland disks containing methanol were used as control. Antimicrobial effects of each extract were determined according to the diameter of no growth area in the culture, Results: The results showed that Thymus vulgaris, Syzygium aromaticum, Querques infectoria, Punica granatum and Termialia chebula had great antibacterial and antifungal effects. The antimicrobial effects of Querques infectoria were shown for the first time in this study. Some of the extracts were even better than chlorhexidine and none of the control disk showed any effect in the culture. Conclusion: This study confirmed that, herbal extractsʹ have cm appropriate effects on the microorganisms in comparison with chlorhexidine.