Localization of Broken Instruments Inside the Root Canal Using Pulse-Echo Mode of Ultrasonic Signal

Localization of broken instruments inside the root canal (RC) during root canal Treatment (RCT) is one of the most challenging tasks for an endodontist surgeon. This is due to the lack of real time systems for localization of broken instruments. This paper suggests a method for the identification of the broken instrument inside the RC. In this paper a novel ultrasonics signal recording method for tooth with the CNN architecture of VGG16 as a feature extractor and SVM (support vector machine) for the localization of the broken instruments are used. With this paper, authors localize the broken instrument inside the canal at three positions, i.e., top, bottom, and middle. The accuracy of the system is achieved by 76% with proposed methodology.