Antimicrobial activity of eight root canal sealers before and after setting

The goal of endodontic treatment is to eliminate or to lower the bacterial concentration gradient from the root canal and to prevent reinfection. In addition to cleaning and shaping procedure, root canal filling material may play a critical role in destroying bacteria which remained in the root canal system. Killing bacteria by root canal filling procedure is either done by the hermetic obturating seal or by the direct bactericidal properties of the obturating materials. Several endodontic sealers have been found to possess antibacterial properties depending on their chemical components, such as calcium hydroxide, eugenol, and fluoride. Different types of sealers have been introduced in the market and several studies have been done to evaluate antimicrobial effect of those sealers. However, data were limited Antimicrobial activity of eight root canal sealers before and after setting