With dentistry in the high tech era, we are fortunate to have, at our disposal many technologic innovations to enhance treatment, including lasers, intraoral camera, dental operating microscope, computer imaging, CAD-CAM and air abrasive units. Lasers now a days are widely used in conservative dentistry and endodontics for cavity preparation, tooth etching, disinfection of the root canal, sealing of the root canal, removal of the gutta-percha in re-treatment, bleaching, crown lengthening and for treating dentin hypersensitivity. This book encompasses the laser technology as a treatment modality in the field of Endodontics.