Description

The contribution of microorganisms to the development of pulpal and periapical disease hasbeen well documented.The bacteria associated with primary endodontic infections are mixed but are predominantly gram-negative anaerobic rods, whereas the bacteria aassociated with secondary infection comprise only one or a few bacterial species-the most important of which is Enterococcus faecalis. In addition, yeast like microorganisms have also been found to be associated with secondary endodontic infections particularly Candida albicans.Successful treatments of both primary and secondary endodontic infections involve effective eradication of the causative microorganisms during root canal treatment procedures The chances of a favourable outcome with root canal treatment are significantly higher if infection is eradicated effectively before the root canal system is obturated However, if microorganisms persist at the time of obturation, or if they penetrate into the canal after obturation, there is a high risk of treatment failure.The present topic gives an insight into the method and instruments of irrigation.