Accuracy Of Various Apex Locators In Detecting Root Canal Perforation In Single Rooted Teeth - An In Vitro Study

In Spite of the advancements made in endodontic techniques, few mishaps are bound to occur. The most common endodontic mishap is root perforation.A root perforation is defined as an artificial opening in the tooth crown or root area creating a communication between the root canal system with the periodontal tissues or oral cavity. Root perforations often compromise the success of root canal therapy. They pose a challenge to the clinician with the fact that they are mostly difficult to diagnose radiographically and also challenge the clinician in determining the location and size of the perforation. Ever since an electronic device to determine the working length has been introduced by Sunada, various reports have advocated the use of these devices to determine the perforation. EALs are touted to be reliable for detecting root perforations. There are six generations of electronic apex locators with specific functions.