Ultrasonic microscope technique is a new method that can effectively increase the success rate of calcified canal treatment. With its magnification and lighting systems, microscopic ultrasound technology enables traditional endodontic treatment to become visible from blind. This technology ensures effective root canal treatment and thorough treatment of calcified root canal. Thus, this technique has been widely used in oral clinics. This paper aims to review the correlation research on dental operating microscope and ultrasonic instruments in the treatment of calcified root canals.
