(TC15) A Digital Approach to Measuring Endodontic Files

Abstract: In endodontics, accurate measurement during instrumentation is imperative. A discrepancy of 0.5mm could potentially change the outcome of an endodontic procedure. A multitude of techniques exist to measure endodontic files. Some of the most widely used tools include a measuring block, an endo ring ruler, and a stainless-steel ruler. While these methods produce reliable results, none of them come without disadvantages. For example, measurements with small files such as size #6 or #8 can be difficult to visualize for the unaided eye. This can be especially compounded by bright light, which could obscure ruler hash marks and make visualization harder. Intra-operator and assistant error can also lead to differences in measurements over the course of a long appointment when multiple files are used at various lengths. Additionally, clinical circumstances may arise where measurements to a tenth of a millimeter are desired. This table clinic showcases the use of a digital endodontic ruler which could provide a more reproducible, precise method for measuring files and gutta-percha cones during an endodontic procedure. In addition to providing a clear digital display, multiple measured working lengths can be saved. This allows the subsequent files to be easily set at a previously stored measurement with ease and a continuous beep from this digital ruler alerts the clinician when the new file matches the set working length. This table clinic demonstrates the use of a novel digital ruler, which can decrease intra-operator error and improve the accuracy of endodontic file measurement, increasing clinical efficiency.