Abstract
Root canal infection has multibacterial etiology. Micro-organisms and their end products are considered the main cause of pulpal and periapical disease. The success of the endodontic treatment is directly influenced by elimination of microorganisms from infected root canals. In our routine endodontic procedures many a times just chemomechanical therapy is not sufflcient to debride the root canals. Therefore, newer modalities or devices must be tried and tested in –vivo for complete disinfection of the root canal. Since, Streptococcous and Staphylococcous are prevalant in root canal, therefore the purpose of this study is- To determine the efficacy of Ultrasonic irrigation with 3% sodium hypochlorite and Nd:YAG Laser for root canal disinfection against Streptococcous and Staphylococous micro-organism. Root canal treatment in single rooted teeth were included in this study, in which pre-operative sample and post operative sample were taken after using the modalities in each group with the sterile paper point. The collected samples were placed in Brain Ileart Infusion transports media and then sent for microbiological culture, which was observed after 48 hrs. Nd:YAG Laser was more efficient than ultrasonic irrigation with 3% NaOCI against Streptococcous and Staphylococcous micro-organism.
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