Laser root canal therapy uses a parallel beam of intense light to clean out root canals. Even after cleaning and shaping the canals thoroughly some bacteria can be present in the pours of the canal wall but when laser beam is fired in to the canal, this completely kills the remaining bacteria and makes the canal sterile, which is very important for the success of any root canal treatment. Laser therapy “melts” away debris consisting of bacteria and infection, known as the “smear layer” of the root. With less time and pain than a conventional root canal, laser dentistry can remove infection so that we can get on with our life.