Dr. Ambica Khetarpal¹, Dr.Ramanathan Ravi², Dr. Sarika Chaudhary¹, Dr. Sangeeta Talwar¹, Dr Mahesh Verma³, Dr. Ambica Kathuria^1,

Total elimination of bacteria from infected root canal systems remains the most important objective of endodontic therapy. Biomechanical instrumentation of the root canal system has been suggested to achieve this task. However, because of the complexity of the root canal system, it has been shown that the complete elimination of debris and achievement of a sterile root canal system is still an ongoing challenge. The task of cleaning and disinfecting a root canal system which contains microorganisms gathered in a biofilm is very difficult; certain bacterial species become more virulent when harbored in biofilm, demonstrating stronger pathogenic potential and increased resistance to antimicrobial agents since biofilm has the ability to prevent the entry and action of such agents. The use of lasers in the field of endodontology represents an innovative approach to match these requirements. In general, dental lasers provide greater accessibility of formerly unreachable parts of the tubular network, due to their better penetration into dentinal tissues. The ability of lasers to remove smear layer and debris from the root canal wall and to open up the orifices of dentinal tubules can be exploited for disinfection of the root canal systems. This article describes the successful management of a case of lower anteriors with large periapical pathology. Er,Cr:YSGG laser was used as an adjunct to conventional root canal preparation that resulted in remarkable and faster healing of the periradicular lesion in lower anteriors.

endodontics, root canal, Er, Cr:YSGG laser, disinfection, healing, anterior